diff --git a/code/game/objects/items/devices/communicator/communicator.dm b/code/game/objects/items/devices/communicator/communicator.dm
index 038d9cb8332..5a17860018d 100644
--- a/code/game/objects/items/devices/communicator/communicator.dm
+++ b/code/game/objects/items/devices/communicator/communicator.dm
@@ -26,7 +26,7 @@ var/global/list/obj/item/device/communicator/all_communicators = list()
 	show_messages = 1
 
 	origin_tech = list(TECH_ENGINEERING = 2, TECH_MAGNET = 2, TECH_BLUESPACE = 2, TECH_DATA = 2)
-	matter = list(DEFAULT_WALL_MATERIAL = 30,"glass" = 10, MAT_COPPER = 10)
+	matter = list(DEFAULT_WALL_MATERIAL = 30,"glass" = 10)
 
 	var/video_range = 3
 	var/obj/machinery/camera/communicator/video_source	// Their camera
@@ -128,10 +128,10 @@ var/global/list/obj/item/device/communicator/all_communicators = list()
 // Description: Shows all the voice mobs inside the device, and their status.
 /obj/item/device/communicator/examine(mob/user)
 	. = ..()
-
+	
 	for(var/mob/living/voice/voice in contents)
 		. += "<span class='notice'>On the screen, you can see a image feed of [voice].</span>"
-
+		
 		if(voice && voice.key)
 			switch(voice.stat)
 				if(CONSCIOUS)
diff --git a/code/game/objects/items/devices/laserpointer.dm b/code/game/objects/items/devices/laserpointer.dm
index 7ccad467f66..810147dbc44 100644
--- a/code/game/objects/items/devices/laserpointer.dm
+++ b/code/game/objects/items/devices/laserpointer.dm
@@ -6,7 +6,7 @@
 	item_state = "pen"
 	var/pointer_icon_state
 	slot_flags = SLOT_BELT
-	matter = list("glass" = 500,"metal" = 500, MAT_COPPER = 10)
+	matter = list("glass" = 500,"metal" = 500)
 	w_class = 2 //Increased to 2, because diodes are w_class 2. Conservation of matter.
 	origin_tech = list(TECH_MAGNET = 2, TECH_COMBAT = 1)
 	var/turf/pointer_loc
diff --git a/code/game/objects/items/devices/multitool.dm b/code/game/objects/items/devices/multitool.dm
index 5cd2faf2d5c..837c6616f78 100644
--- a/code/game/objects/items/devices/multitool.dm
+++ b/code/game/objects/items/devices/multitool.dm
@@ -17,7 +17,7 @@
 	drop_sound = 'sound/items/drop/multitool.ogg'
 	pickup_sound = 'sound/items/pickup/multitool.ogg'
 
-	matter = list(DEFAULT_WALL_MATERIAL = 50,"glass" = 20, MAT_COPPER = 10)
+	matter = list(DEFAULT_WALL_MATERIAL = 50,"glass" = 20)
 
 	var/mode_index = 1
 	var/toolmode = MULTITOOL_MODE_STANDARD
@@ -29,7 +29,6 @@
 	var/obj/machinery/connectable	//Used to connect machinery.
 	var/weakref_wiring //Used to store weak references for integrated circuitry. This is now the Omnitool.
 	toolspeed = 1
-	tool_qualities = list(TOOL_MULTITOOL)
 
 /obj/item/device/multitool/attack_self(mob/living/user)
 	var/choice = alert("What do you want to do with \the [src]?","Multitool Menu", "Switch Mode", "Clear Buffers", "Cancel")
@@ -66,6 +65,9 @@
 
 	return
 
+/obj/item/device/multitool/is_multitool()
+	return TRUE
+
 /obj/item/device/multitool/cyborg
 	name = "multitool"
 	desc = "Optimised and stripped-down version of a regular multitool."
diff --git a/code/game/objects/items/devices/radio/electropack.dm b/code/game/objects/items/devices/radio/electropack.dm
index 55b79eaef3f..cc555f80730 100644
--- a/code/game/objects/items/devices/radio/electropack.dm
+++ b/code/game/objects/items/devices/radio/electropack.dm
@@ -11,7 +11,7 @@
 	slot_flags = SLOT_BACK
 	w_class = ITEMSIZE_HUGE
 
-	matter = list(DEFAULT_WALL_MATERIAL = 10000,"glass" = 2500, MAT_COPPER = 1550)
+	matter = list(DEFAULT_WALL_MATERIAL = 10000,"glass" = 2500)
 
 	var/code = 2
 
diff --git a/code/game/objects/items/devices/radio/radio.dm b/code/game/objects/items/devices/radio/radio.dm
index 88e957f76ed..366853a7bf3 100644
--- a/code/game/objects/items/devices/radio/radio.dm
+++ b/code/game/objects/items/devices/radio/radio.dm
@@ -61,7 +61,7 @@ var/global/list/default_medbay_channels = list(
 	var/bs_tx_preload_id
 	var/bs_rx_preload_id
 
-	matter = list("glass" = 25, DEFAULT_WALL_MATERIAL = 75, MAT_COPPER = 15)
+	matter = list("glass" = 25,DEFAULT_WALL_MATERIAL = 75)
 	var/const/FREQ_LISTENING = 1
 	var/list/internal_channels
 
diff --git a/code/game/objects/items/devices/scanners.dm b/code/game/objects/items/devices/scanners.dm
index 291202f41f2..c949884c6f0 100644
--- a/code/game/objects/items/devices/scanners.dm
+++ b/code/game/objects/items/devices/scanners.dm
@@ -21,7 +21,7 @@ HALOGEN COUNTER	- Radcount on mobs
 	w_class = ITEMSIZE_SMALL
 	throw_speed = 5
 	throw_range = 10
-	matter = list(DEFAULT_WALL_MATERIAL = 200, MAT_COPPER = 25)
+	matter = list(DEFAULT_WALL_MATERIAL = 200)
 	origin_tech = list(TECH_MAGNET = 1, TECH_BIO = 1)
 	var/mode = 1;
 	var/advscan = 0
diff --git a/code/game/objects/items/weapons/circuitboards/circuitboard.dm b/code/game/objects/items/weapons/circuitboards/circuitboard.dm
index c8a3a672a7f..8b913eaf45d 100644
--- a/code/game/objects/items/weapons/circuitboards/circuitboard.dm
+++ b/code/game/objects/items/weapons/circuitboards/circuitboard.dm
@@ -23,8 +23,6 @@
 	drop_sound = 'sound/items/drop/device.ogg'
 	pickup_sound = 'sound/items/pickup/device.ogg'
 
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
-
 //Called when the circuitboard is used to contruct a new machine.
 /obj/item/weapon/circuitboard/proc/construct(var/obj/machinery/M)
 	if(istype(M, build_path))
diff --git a/code/game/objects/items/weapons/circuitboards/frame.dm b/code/game/objects/items/weapons/circuitboards/frame.dm
index 1b95cc131ed..e9c0ee728a5 100644
--- a/code/game/objects/items/weapons/circuitboards/frame.dm
+++ b/code/game/objects/items/weapons/circuitboards/frame.dm
@@ -10,37 +10,37 @@
 	name = T_BOARD("guestpass console")
 	build_path = /obj/machinery/computer/guestpass
 	board_type = new /datum/frame/frame_types/guest_pass_console
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/status_display
 	name = T_BOARD("status display")
 	build_path = /obj/machinery/status_display
 	board_type = new /datum/frame/frame_types/display
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/ai_status_display
 	name = T_BOARD("ai status display")
 	build_path = /obj/machinery/ai_status_display
 	board_type = new /datum/frame/frame_types/display
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/newscaster
 	name = T_BOARD("newscaster")
 	build_path = /obj/machinery/newscaster
 	board_type = new /datum/frame/frame_types/newscaster
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/atm
 	name = T_BOARD("atm")
 	build_path = /obj/machinery/atm
 	board_type = new /datum/frame/frame_types/atm
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/request
 	name = T_BOARD("request console")
 	build_path = /obj/machinery/requests_console
 	board_type = new /datum/frame/frame_types/supply_request_console
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 //Alarm
 
@@ -48,25 +48,25 @@
 	name = T_BOARD("fire alarm")
 	build_path = /obj/machinery/firealarm
 	board_type = new /datum/frame/frame_types/fire_alarm
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/airalarm
 	name = T_BOARD("air alarm")
 	build_path = /obj/machinery/alarm
 	board_type = new /datum/frame/frame_types/air_alarm
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/intercom
 	name = T_BOARD("intercom")
 	build_path = /obj/item/device/radio/intercom
 	board_type = new /datum/frame/frame_types/intercom
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/keycard_auth
 	name = T_BOARD("keycard authenticator")
 	build_path = /obj/machinery/keycard_auth
 	board_type = new /datum/frame/frame_types/keycard_authenticator
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 //Computer
 
@@ -74,7 +74,7 @@
 	name = T_BOARD("holopad")
 	build_path = /obj/machinery/hologram/holopad
 	board_type = new /datum/frame/frame_types/holopad
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /obj/item/weapon/circuitboard/scanner_console
 	name = T_BOARD("body scanner console")
@@ -94,7 +94,7 @@
 	name = T_BOARD("photocopier")
 	build_path = /obj/machinery/photocopier
 	board_type = new /datum/frame/frame_types/photocopier
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 	req_components = list(
 							/obj/item/weapon/stock_parts/scanning_module = 1,
 							/obj/item/weapon/stock_parts/motor = 1,
@@ -105,7 +105,7 @@
 	name = T_BOARD("fax")
 	build_path = /obj/machinery/photocopier/faxmachine
 	board_type = new /datum/frame/frame_types/fax
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 	req_components = list(
 							/obj/item/weapon/stock_parts/scanning_module = 1,
 							/obj/item/weapon/stock_parts/motor = 1,
@@ -116,7 +116,6 @@
 	name = T_BOARD("conveyor")
 	build_path = /obj/machinery/conveyor
 	board_type = new /datum/frame/frame_types/conveyor
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/gear = 2,
 							/obj/item/weapon/stock_parts/motor = 2,
@@ -126,7 +125,6 @@
 	name = T_BOARD("recharger")
 	build_path = /obj/machinery/recharger
 	board_type = new /datum/frame/frame_types/recharger
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/capacitor = 1,
 							/obj/item/stack/cable_coil = 5)
@@ -140,7 +138,6 @@
 	name = T_BOARD("heavy-duty cell charger")
 	build_path = /obj/machinery/cell_charger
 	board_type = new /datum/frame/frame_types/cell_charger
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/capacitor = 1,
 							/obj/item/stack/cable_coil = 5)
@@ -149,7 +146,7 @@
 	name = T_BOARD("washing machine")
 	build_path = /obj/machinery/washing_machine
 	board_type = new /datum/frame/frame_types/washing_machine
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 	req_components = list(
 							/obj/item/weapon/stock_parts/motor = 1,
 							/obj/item/weapon/stock_parts/gear = 2)
@@ -158,7 +155,6 @@
 	name = T_BOARD("reagent grinder")
 	build_path = /obj/machinery/reagentgrinder
 	board_type = new /datum/frame/frame_types/grinder
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/motor = 1,
 							/obj/item/weapon/stock_parts/gear = 1,
@@ -167,7 +163,6 @@
 /obj/item/weapon/circuitboard/distiller
 	build_path = /obj/machinery/portable_atmospherics/powered/reagent_distillery
 	board_type = new /datum/frame/frame_types/reagent_distillery
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/capacitor = 1,
 							/obj/item/weapon/stock_parts/micro_laser = 1,
@@ -178,7 +173,6 @@
 	name = T_BOARD("teleporter hub")
 	build_path = /obj/machinery/teleport/hub
 	board_type = "teleporter_hub"
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_GOLD = 100)
 //	origin_tech = list(TECH_DATA = 2, TECH_BLUESPACE = 4)
 	req_components = list(
 							/obj/item/weapon/stock_parts/scanning_module = 4,
@@ -189,7 +183,6 @@
 	name = T_BOARD("teleporter station")
 	build_path = /obj/machinery/teleport/station
 	board_type = "teleporter_station"
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_GOLD = 100)
 //	origin_tech = list(TECH_DATA = 2, TECH_BLUESPACE = 3)
 	req_components = list(
 							/obj/item/weapon/stock_parts/console_screen = 1,
@@ -201,7 +194,6 @@
 	build_path = /obj/machinery/bodyscanner
 	board_type = new /datum/frame/frame_types/medical_pod
 	origin_tech = list(TECH_MAGNET = 2, TECH_BIO = 2)
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/scanning_module = 3,
 							/obj/item/stack/material/glass/reinforced = 2)
@@ -210,7 +202,6 @@
 	name = T_BOARD("sleeper")
 	build_path = /obj/machinery/sleeper
 	board_type = new /datum/frame/frame_types/medical_pod
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 	origin_tech = list(TECH_MAGNET = 2, TECH_BIO = 2)
 	req_components = list(
 							/obj/item/weapon/stock_parts/manipulator = 1,
@@ -223,7 +214,6 @@
 	name = T_BOARD("VR sleeper")
 	build_path = /obj/machinery/vr_sleeper
 	board_type = new /datum/frame/frame_types/medical_pod
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_GOLD = 100)
 	origin_tech = list(TECH_MAGNET = 2, TECH_BIO = 2)
 	req_components = list(
 							/obj/item/weapon/stock_parts/scanning_module = 1,
@@ -233,7 +223,6 @@
 	name = T_BOARD("dna analyzer")
 	build_path = /obj/machinery/dnaforensics
 	board_type = new /datum/frame/frame_types/dna_analyzer
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_GOLD = 100)
 	origin_tech = list(TECH_MAGNET = 4, TECH_BIO = 2, TECH_DATA = 2)
 	req_components = list(
 							/obj/item/weapon/stock_parts/scanning_module = 2,
@@ -244,7 +233,6 @@
 	name = T_BOARD("mass driver")
 	build_path = /obj/machinery/mass_driver
 	board_type = new /datum/frame/frame_types/mass_driver
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_GOLD = 100)
 	req_components = list(
 							/obj/item/weapon/stock_parts/gear = 2,
 							/obj/item/weapon/stock_parts/motor = 2,
diff --git a/code/game/objects/items/weapons/circuitboards/mecha.dm b/code/game/objects/items/weapons/circuitboards/mecha.dm
index 132cf65de6b..777146f385d 100644
--- a/code/game/objects/items/weapons/circuitboards/mecha.dm
+++ b/code/game/objects/items/weapons/circuitboards/mecha.dm
@@ -8,7 +8,6 @@
 	icon = 'icons/obj/module.dmi'
 	icon_state = "std_mod"
 	board_type = "other"
-	matter = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 100)
 
 /obj/item/weapon/circuitboard/mecha/ripley
 		origin_tech = list(TECH_DATA = 3)
diff --git a/code/modules/assembly/igniter.dm b/code/modules/assembly/igniter.dm
index 5a673280ceb..5344d4b15bb 100644
--- a/code/modules/assembly/igniter.dm
+++ b/code/modules/assembly/igniter.dm
@@ -3,7 +3,7 @@
 	desc = "A small electronic device able to ignite combustable substances."
 	icon_state = "igniter"
 	origin_tech = list(TECH_MAGNET = 1)
-	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, MAT_COPPER = 10, "waste" = 10)
+	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, "waste" = 10)
 
 	secured = 1
 	wires = WIRE_RECEIVE
diff --git a/code/modules/assembly/infrared.dm b/code/modules/assembly/infrared.dm
index 3a7952ecfe6..853f2f230be 100644
--- a/code/modules/assembly/infrared.dm
+++ b/code/modules/assembly/infrared.dm
@@ -5,7 +5,7 @@
 	desc = "Emits a visible or invisible beam and is triggered when the beam is interrupted."
 	icon_state = "infrared"
 	origin_tech = list(TECH_MAGNET = 2)
-	matter = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 500, MAT_COPPER = 10, "waste" = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 500, "waste" = 100)
 
 	wires = WIRE_PULSE
 
diff --git a/code/modules/assembly/proximity.dm b/code/modules/assembly/proximity.dm
index de764c50111..b292d3f7531 100644
--- a/code/modules/assembly/proximity.dm
+++ b/code/modules/assembly/proximity.dm
@@ -3,7 +3,7 @@
 	desc = "Used for scanning and alerting when someone enters a certain proximity."
 	icon_state = "prox"
 	origin_tech = list(TECH_MAGNET = 1)
-	matter = list(DEFAULT_WALL_MATERIAL = 800, "glass" = 200, MAT_COPPER = 10, "waste" = 50)
+	matter = list(DEFAULT_WALL_MATERIAL = 800, "glass" = 200, "waste" = 50)
 	wires = WIRE_PULSE
 
 	secured = 0
diff --git a/code/modules/assembly/signaler.dm b/code/modules/assembly/signaler.dm
index 392a7efdfe7..e98ff5372cf 100644
--- a/code/modules/assembly/signaler.dm
+++ b/code/modules/assembly/signaler.dm
@@ -4,7 +4,7 @@
 	icon_state = "signaller"
 	item_state = "signaler"
 	origin_tech = list(TECH_MAGNET = 1)
-	matter = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 200, MAT_COPPER = 10, "waste" = 100)
+	matter = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 200, "waste" = 100)
 	wires = WIRE_RECEIVE | WIRE_PULSE | WIRE_RADIO_PULSE | WIRE_RADIO_RECEIVE
 
 	secured = TRUE
diff --git a/code/modules/assembly/timer.dm b/code/modules/assembly/timer.dm
index 144a21bcd05..fa8b7838157 100644
--- a/code/modules/assembly/timer.dm
+++ b/code/modules/assembly/timer.dm
@@ -3,7 +3,7 @@
 	desc = "Used to time things. Works well with contraptions which has to count down. Tick tock."
 	icon_state = "timer"
 	origin_tech = list(TECH_MAGNET = 1)
-	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, MAT_COPPER = 10, "waste" = 10)
+	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, "waste" = 10)
 
 	wires = WIRE_PULSE
 
diff --git a/code/modules/assembly/voice.dm b/code/modules/assembly/voice.dm
index c608db5ff15..8990e01d637 100644
--- a/code/modules/assembly/voice.dm
+++ b/code/modules/assembly/voice.dm
@@ -3,7 +3,7 @@
 	desc = "A small electronic device able to record a voice sample, and send a signal when that sample is repeated."
 	icon_state = "voice"
 	origin_tech = list(TECH_MAGNET = 1)
-	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, MAT_COPPER = 10, "waste" = 10)
+	matter = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 50, "waste" = 10)
 	var/listening = 0
 	var/recorded	//the activation message
 
diff --git a/code/modules/projectiles/ammunition/rounds.dm b/code/modules/projectiles/ammunition/rounds.dm
index fbcc6528cd1..02d4b4aa5e7 100644
--- a/code/modules/projectiles/ammunition/rounds.dm
+++ b/code/modules/projectiles/ammunition/rounds.dm
@@ -300,15 +300,14 @@
 	icon_state = "lcasing"
 	caliber = "14.5mm"
 	projectile_type = /obj/item/projectile/bullet/rifle/a145
-	matter = list(MAT_TITANIUM = 2500, MAT_URANIUM = 1000, MAT_PLASTEEL = 1500)
+	matter = list(DEFAULT_WALL_MATERIAL = 1250)
 
 /obj/item/ammo_casing/a145/highvel
 	desc = "A 14.5mm sabot shell."
 	projectile_type = /obj/item/projectile/bullet/rifle/a145
-	matter = list(MAT_TITANIUM = 2500, MAT_PLASTEEL = 1500)
 
 /obj/item/ammo_casing/a145/spent/Initialize()
-	. = ..()
+	..()
 	expend()
 
 /*
diff --git a/code/modules/research/designs/HUDs.dm b/code/modules/research/designs/HUDs.dm
index e1085756530..4a6648f26a5 100644
--- a/code/modules/research/designs/HUDs.dm
+++ b/code/modules/research/designs/HUDs.dm
@@ -1,7 +1,7 @@
 // HUDs
 
 /datum/design/item/hud
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /datum/design/item/hud/AssembleDesignName()
 	..()
@@ -42,6 +42,6 @@
 	name = "graviton visor"
 	id = "graviton_goggles"
 	req_tech = list(TECH_MAGNET = 5, TECH_ENGINEERING = 3, TECH_BLUESPACE = 3, TECH_PHORON = 3)
-	materials = list(MAT_PLASTEEL = 2000, "glass" = 3000, MAT_PHORON = 1500, MAT_COPPER = 10)
+	materials = list(MAT_PLASTEEL = 2000, "glass" = 3000, MAT_PHORON = 1500)
 	build_path = /obj/item/clothing/glasses/graviton
 	sort_string = "EAAAE"
\ No newline at end of file
diff --git a/code/modules/research/designs/ai_holders.dm b/code/modules/research/designs/ai_holders.dm
index b4215d91b20..7cf36c5bb6c 100644
--- a/code/modules/research/designs/ai_holders.dm
+++ b/code/modules/research/designs/ai_holders.dm
@@ -8,7 +8,7 @@
 	id = "mmi"
 	req_tech = list(TECH_DATA = 2, TECH_BIO = 3)
 	build_type = PROTOLATHE | PROSFAB
-	materials = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 500, MAT_COPPER = 200)
+	materials = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 500)
 	build_path = /obj/item/device/mmi
 	category = list("Misc")
 	sort_string = "SAAAA"
@@ -18,7 +18,7 @@
 	id = "posibrain"
 	req_tech = list(TECH_ENGINEERING = 4, TECH_MATERIAL = 6, TECH_BLUESPACE = 2, TECH_DATA = 4)
 	build_type = PROTOLATHE | PROSFAB
-	materials = list(MAT_TITANIUM = 2000, "glass" = 1000, "silver" = 500, "gold" = 500, "phoron" = 500, MAT_DIAMOND = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 1000, "silver" = 1000, "gold" = 500, "phoron" = 500, "diamond" = 100)
 	build_path = /obj/item/device/mmi/digital/posibrain
 	category = list("Misc")
 	sort_string = "SAAAB"
@@ -28,7 +28,7 @@
 	id = "dronebrain"
 	req_tech = list(TECH_ENGINEERING = 4, TECH_MATERIAL = 5, TECH_DATA = 4)
 	build_type = PROTOLATHE | PROSFAB
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 1000, "silver" = 1000, "gold" = 500, MAT_COPPER = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 1000, "silver" = 1000, "gold" = 500)
 	build_path = /obj/item/device/mmi/digital/robot
 	category = list("Misc")
 	sort_string = "SAAAC"
@@ -37,7 +37,7 @@
 	name = "'pAI', personal artificial intelligence device"
 	id = "paicard"
 	req_tech = list(TECH_DATA = 2)
-	materials = list("glass" = 500, DEFAULT_WALL_MATERIAL = 500, MAT_COPPER = 250)
+	materials = list("glass" = 500, DEFAULT_WALL_MATERIAL = 500)
 	build_path = /obj/item/device/paicard
 	sort_string = "SBAAA"
 
@@ -46,6 +46,6 @@
 	desc = "Allows for the construction of an intelliCore."
 	id = "intellicore"
 	req_tech = list(TECH_DATA = 4, TECH_MATERIAL = 4)
-	materials = list(MAT_TITANIUM = 2500, MAT_ALUMINIUM = 500, "glass" = 500, "gold" = 200)
+	materials = list("glass" = 1000, "gold" = 200)
 	build_path = /obj/item/device/aicard
 	sort_string = "SCAAA"
\ No newline at end of file
diff --git a/code/modules/research/designs/bag_of_holding.dm b/code/modules/research/designs/bag_of_holding.dm
index dc4fb6b0538..744bbca5a3d 100644
--- a/code/modules/research/designs/bag_of_holding.dm
+++ b/code/modules/research/designs/bag_of_holding.dm
@@ -9,7 +9,7 @@
 	desc = "Using localized pockets of bluespace this bag prototype offers incredible storage capacity with the contents weighting nothing. It's a shame the bag itself is pretty heavy."
 	id = "bag_holding"
 	req_tech = list(TECH_BLUESPACE = 4, TECH_MATERIAL = 6)
-	materials = list(MAT_TITANIUM = 2000, "gold" = 1000, "diamond" = 1500, "uranium" = 250)
+	materials = list("gold" = 3000, "diamond" = 1500, "uranium" = 250)
 	build_path = /obj/item/weapon/storage/backpack/holding
 	sort_string = "QAAAA"
 
@@ -18,6 +18,6 @@
 	desc = "A minaturized prototype of the popular Bag of Holding, the Dufflebag of Holding is, functionally, identical to the bag of holding, but comes in a more stylish and compact form."
 	id = "dufflebag_holding"
 	req_tech = list(TECH_BLUESPACE = 4, TECH_MATERIAL = 6)
-	materials = list(MAT_TITANIUM = 2000, "gold" = 1000, "diamond" = 1500, "uranium" = 250)
+	materials = list("gold" = 3000, "diamond" = 1500, "uranium" = 250)
 	build_path = /obj/item/weapon/storage/backpack/holding/duffle
 	sort_string = "QAAAB"
\ No newline at end of file
diff --git a/code/modules/research/designs/bio_devices.dm b/code/modules/research/designs/bio_devices.dm
index f0c53b0bb30..87623641057 100644
--- a/code/modules/research/designs/bio_devices.dm
+++ b/code/modules/research/designs/bio_devices.dm
@@ -1,5 +1,5 @@
 /datum/design/item/biotech
-	materials = list(DEFAULT_WALL_MATERIAL = 30, "glass" = 20, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 30, "glass" = 20)
 
 /datum/design/item/biotech/AssembleDesignName()
 	..()
@@ -39,7 +39,7 @@
 	desc = "A hand-held scanner able to diagnose robotic injuries."
 	id = "robot_scanner"
 	req_tech = list(TECH_MAGNET = 3, TECH_BIO = 2, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 200, MAT_COPPER = 20)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 200)
 	build_path = /obj/item/device/robotanalyzer
 	sort_string = "JAACA"
 
@@ -47,7 +47,7 @@
 	desc = "A tube of paste containing swarms of repair nanites. Very effective in repairing robotic machinery."
 	id = "nanopaste"
 	req_tech = list(TECH_MATERIAL = 4, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 7000, "glass" = 7000, MAT_COPPER = 15)
+	materials = list(DEFAULT_WALL_MATERIAL = 7000, "glass" = 7000)
 	build_path = /obj/item/stack/nanopaste
 	sort_string = "JAACB"
 
@@ -55,7 +55,7 @@
 	desc = "A device capable of quickly scanning all relevant data about a plant."
 	id = "plant_analyzer"
 	req_tech = list(TECH_MAGNET = 2, TECH_BIO = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500)
 	build_path = /obj/item/device/analyzer/plant_analyzer
 	sort_string = "JAADA"
 
diff --git a/code/modules/research/designs/circuits/ai_modules.dm b/code/modules/research/designs/circuits/ai_modules.dm
index 456acb1b926..378a4fde0d0 100644
--- a/code/modules/research/designs/circuits/ai_modules.dm
+++ b/code/modules/research/designs/circuits/ai_modules.dm
@@ -1,6 +1,6 @@
 /datum/design/aimodule
 	build_type = IMPRINTER
-	materials = list("glass" = 1800, MAT_COPPER = 200, "gold" = 100)
+	materials = list("glass" = 2000, "gold" = 100)
 
 /datum/design/aimodule/AssembleDesignName()
 	name = "AI module design ([name])"
diff --git a/code/modules/research/designs/circuits/circuits.dm b/code/modules/research/designs/circuits/circuits.dm
index f2cdb7d3898..8b6c3d29ec9 100644
--- a/code/modules/research/designs/circuits/circuits.dm
+++ b/code/modules/research/designs/circuits/circuits.dm
@@ -5,7 +5,7 @@ CIRCUITS BELOW
 /datum/design/circuit
 	build_type = IMPRINTER
 	req_tech = list(TECH_DATA = 2)
-	materials = list("glass" = 1850, MAT_COPPER = 150)
+	materials = list("glass" = 2000)
 	chemicals = list("sacid" = 20)
 	time = 5
 
@@ -493,7 +493,7 @@ CIRCUITS BELOW
 	name = "'Durand' central control"
 	id = "durand_main"
 	req_tech = list(TECH_DATA = 4)
-	materials = list("glass" = 2000, MAT_GRAPHITE = 1250, MAT_COPPER = 100)
+	materials = list("glass" = 2000, MAT_GRAPHITE = 1250)
 	chemicals = list("sacid" = 20)
 	build_path = /obj/item/weapon/circuitboard/mecha/durand/main
 	sort_string = "NAADA"
@@ -502,7 +502,7 @@ CIRCUITS BELOW
 	name = "'Durand' peripherals control"
 	id = "durand_peri"
 	req_tech = list(TECH_DATA = 4)
-	materials = list("glass" = 2000, MAT_GRAPHITE = 1250, MAT_COPPER = 100)
+	materials = list("glass" = 2000, MAT_GRAPHITE = 1250)
 	chemicals = list("sacid" = 20)
 	build_path = /obj/item/weapon/circuitboard/mecha/durand/peripherals
 	sort_string = "NAADB"
@@ -511,7 +511,7 @@ CIRCUITS BELOW
 	name = "'Durand' weapon control and targeting"
 	id = "durand_targ"
 	req_tech = list(TECH_DATA = 4, TECH_COMBAT = 2)
-	materials = list("glass" = 2000, MAT_GRAPHITE = 1250, MAT_COPPER = 100)
+	materials = list("glass" = 2000, MAT_GRAPHITE = 1250)
 	chemicals = list("sacid" = 20)
 	build_path = /obj/item/weapon/circuitboard/mecha/durand/targeting
 	sort_string = "NAADC"
@@ -578,7 +578,7 @@ CIRCUITS BELOW
 
 /datum/design/circuit/shield
 	req_tech = list(TECH_BLUESPACE = 4, TECH_PHORON = 3)
-	materials = list("glass" = 2000, MAT_COPPER = 100, "gold" = 1000)
+	materials = list("glass" = 2000, "gold" = 1000)
 
 /datum/design/circuit/shield/AssembleDesignName()
 	name = "Shield generator circuit design ([name])"
@@ -662,19 +662,6 @@ CIRCUITS BELOW
 	build_path = /obj/item/weapon/circuitboard/microwave/advanced
 	sort_string = "HACAA"
 
-/datum/design/circuit/pointdefense
-	name = "point defense battery"
-	id = "pointdefense"
-	req_tech = list(TECH_DATA = 2, TECH_ENGINEERING = 3, TECH_COMBAT = 4)
-	build_path = /obj/item/weapon/circuitboard/pointdefense
-	sort_string = "OAABA"
-
-/datum/design/circuit/pointdefense_control
-	name = "point defense control"
-	id = "pointdefense_control"
-	req_tech = list(TECH_DATA = 4, TECH_ENGINEERING = 3, TECH_COMBAT = 2)
-	build_path = /obj/item/weapon/circuitboard/pointdefense_control
-	sort_string = "OAABB"
 
 /datum/design/circuit/shield_generator
 	name = "shield generator"
diff --git a/code/modules/research/designs/circuits/disks.dm b/code/modules/research/designs/circuits/disks.dm
index fd834fc55f7..2a3c2df83f7 100644
--- a/code/modules/research/designs/circuits/disks.dm
+++ b/code/modules/research/designs/circuits/disks.dm
@@ -2,7 +2,7 @@
 /datum/design/circuit/disk
 	build_type = IMPRINTER
 	req_tech = list(TECH_DATA = 3)
-	materials = list(MAT_PLASTIC = 2000, MAT_GLASS = 1000, MAT_COPPER = 150)
+	materials = list(MAT_PLASTIC = 2000, MAT_GLASS = 1000)
 	chemicals = list("pacid" = 10)
 	time = 5
 
diff --git a/code/modules/research/designs/engineering.dm b/code/modules/research/designs/engineering.dm
index 64c6ca79a4e..9769f48bb82 100644
--- a/code/modules/research/designs/engineering.dm
+++ b/code/modules/research/designs/engineering.dm
@@ -9,7 +9,7 @@
 	desc = "A welding tool that generate fuel for itself."
 	id = "expwelder"
 	req_tech = list(TECH_ENGINEERING = 4, TECH_PHORON = 3, TECH_MATERIAL = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 70, "glass" = 120, "phoron" = 100, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 70, "glass" = 120, "phoron" = 100)
 	build_path = /obj/item/weapon/weldingtool/experimental
 	sort_string = "NAAAA"
 
@@ -18,7 +18,7 @@
 	desc = "A simple powered hand drill."
 	id = "handdrill"
 	req_tech = list(TECH_ENGINEERING = 3, TECH_MATERIAL = 2)
-	materials = list(MAT_ALUMINIUM = 300, "silver" = 100, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 300, "silver" = 100)
 	build_path = /obj/item/weapon/tool/screwdriver/power
 	sort_string = "NAAAB"
 
@@ -27,7 +27,7 @@
 	desc = "A set of jaws of life, compressed through the magic of science."
 	id = "jawslife"
 	req_tech = list(TECH_ENGINEERING = 3, TECH_MATERIAL = 2)
-	materials = list(MAT_ALUMINIUM = 300, MAT_TITANIUM = 100, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 300, "silver" = 100)
 	build_path = /obj/item/weapon/tool/crowbar/power
 	sort_string = "NAAAC"
 
@@ -51,7 +51,7 @@
 	desc = "A terahertz-ray emitter and scanner used to detect underfloor objects such as cables and pipes."
 	id = "tscanner"
 	req_tech = list(TECH_MAGNET = 2, TECH_ENGINEERING = 2, TECH_MATERIAL = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 200, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 200)
 	build_path = /obj/item/device/t_scanner
 	sort_string = "NBAAA"
 
@@ -60,7 +60,7 @@
 	desc = "An upgraded version of the terahertz-ray emitter and scanner used to detect underfloor objects such as cables and pipes."
 	id = "upgradedtscanner"
 	req_tech = list(TECH_MAGNET = 3, TECH_ENGINEERING = 4, TECH_MATERIAL = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "phoron" = 150, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "phoron" = 150)
 	build_path = /obj/item/device/t_scanner/upgraded
 	sort_string = "NBAAB"
 
@@ -69,7 +69,7 @@
 	desc = "An advanced version of the terahertz-ray emitter and scanner used to detect underfloor objects such as cables and pipes."
 	id = "advancedtscanner"
 	req_tech = list(TECH_MAGNET = 6, TECH_ENGINEERING = 6, TECH_MATERIAL = 6)
-	materials = list(MAT_ALUMINIUM = 1250, "phoron" = 500, "silver" = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 1250, "phoron" = 500, "silver" = 50)
 	build_path = /obj/item/device/t_scanner/advanced
 	sort_string = "NBAAC"
 
@@ -78,6 +78,6 @@
 	desc = "A hand-held environmental scanner which reports current gas levels."
 	id = "atmosanalyzer"
 	req_tech = list(TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 200, "glass" = 100, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 200, "glass" = 100)
 	build_path = /obj/item/device/analyzer
 	sort_string = "NBABA"
\ No newline at end of file
diff --git a/code/modules/research/designs/implants.dm b/code/modules/research/designs/implants.dm
index b6279e62e1b..4c4b5ba8016 100644
--- a/code/modules/research/designs/implants.dm
+++ b/code/modules/research/designs/implants.dm
@@ -1,7 +1,7 @@
 // Implants
 
 /datum/design/item/implant
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 5)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 
 /datum/design/item/implant/AssembleDesignName()
 	..()
@@ -17,7 +17,6 @@
 /datum/design/item/implant/freedom
 	name = "freedom"
 	id = "implant_free"
-	req_tech = list(TECH_MATERIAL = 3, TECH_ILLEGAL = 2, TECH_BIO = 3)
+	req_tech = list(TECH_ILLEGAL = 2, TECH_BIO = 3)
 	build_path = /obj/item/weapon/implantcase/freedom
-	sort_string = "MFAAB"
-	materials = list(MAT_TITANIUM = 50, "glass" = 50, MAT_COPPER = 5)
+	sort_string = "MFAAB"
\ No newline at end of file
diff --git a/code/modules/research/designs/locator_devices.dm b/code/modules/research/designs/locator_devices.dm
index b59af1ec4bd..b6f149393c8 100644
--- a/code/modules/research/designs/locator_devices.dm
+++ b/code/modules/research/designs/locator_devices.dm
@@ -2,7 +2,7 @@
 
 /datum/design/item/gps
 	req_tech = list(TECH_MATERIAL = 2, TECH_DATA = 2, TECH_BLUESPACE = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, MAT_COPPER = 5)
+	materials = list(DEFAULT_WALL_MATERIAL = 500)
 
 /datum/design/item/gps/AssembleDesignName()
 	..()
@@ -67,7 +67,7 @@
 	desc = "Used to scan and locate signals on a particular frequency."
 	id = "beacon_locator"
 	req_tech = list(TECH_MAGNET = 3, TECH_ENGINEERING = 2, TECH_BLUESPACE = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 1000,"glass" = 500, MAT_COPPER = 150)
+	materials = list(DEFAULT_WALL_MATERIAL = 1000,"glass" = 500)
 	build_path = /obj/item/device/beacon_locator
 	sort_string = "DBAAA"
 
@@ -75,6 +75,6 @@
 	name = "Bluespace tracking beacon"
 	id = "beacon"
 	req_tech = list(TECH_BLUESPACE = 1)
-	materials = list (DEFAULT_WALL_MATERIAL = 20, "glass" = 10, MAT_COPPER = 5)
+	materials = list (DEFAULT_WALL_MATERIAL = 20, "glass" = 10)
 	build_path = /obj/item/device/radio/beacon
 	sort_string = "DBABA"
\ No newline at end of file
diff --git a/code/modules/research/designs/medical.dm b/code/modules/research/designs/medical.dm
index 167f7fdd2be..7fcc4ab1f65 100644
--- a/code/modules/research/designs/medical.dm
+++ b/code/modules/research/designs/medical.dm
@@ -12,7 +12,7 @@
 	desc = "A scalpel augmented with a directed laser, for more precise cutting without blood entering the field. This one looks basic and could be improved."
 	id = "scalpel_laser1"
 	req_tech = list(TECH_BIO = 2, TECH_MATERIAL = 2, TECH_MAGNET = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 12500, "glass" = 7500, MAT_COPPER = 120)
+	materials = list(DEFAULT_WALL_MATERIAL = 12500, "glass" = 7500)
 	build_path = /obj/item/weapon/surgical/scalpel/laser1
 	sort_string = "KAAAA"
 
@@ -75,7 +75,7 @@
 	desc = "A hand-held body scanner able to distinguish vital signs of the subject."
 	id = "medical_analyzer"
 	req_tech = list(TECH_MAGNET = 2, TECH_BIO = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500, MAT_COPPER = 20)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500)
 	build_path = /obj/item/device/healthanalyzer
 	sort_string = "KBAAA"
 
@@ -93,6 +93,6 @@
 	desc = "A more advanced version of the regular roller bed, with inbuilt surgical stabilisers and an improved folding system."
 	id = "roller_bed"
 	req_tech = list(TECH_BIO = 3, TECH_MATERIAL = 3, TECH_MAGNET = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 2000, "phoron" = 2000, MAT_COPPER = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 2000, "phoron" = 2000)
 	build_path = /obj/item/roller/adv
 	sort_string = "KCAAA"
\ No newline at end of file
diff --git a/code/modules/research/designs/mining_toys.dm b/code/modules/research/designs/mining_toys.dm
index 4ffda894c40..61be9cd8712 100644
--- a/code/modules/research/designs/mining_toys.dm
+++ b/code/modules/research/designs/mining_toys.dm
@@ -7,14 +7,14 @@
 /datum/design/item/weapon/mining/drill
 	id = "drill"
 	req_tech = list(TECH_MATERIAL = 2, TECH_POWER = 3, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 6000, "glass" = 1000, MAT_COPPER = 10) //expensive, but no need for miners.
+	materials = list(DEFAULT_WALL_MATERIAL = 6000, "glass" = 1000) //expensive, but no need for miners.
 	build_path = /obj/item/weapon/pickaxe/drill
 	sort_string = "FAAAA"
 
 /datum/design/item/weapon/mining/jackhammer
 	id = "jackhammer"
 	req_tech = list(TECH_MATERIAL = 3, TECH_POWER = 2, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 500, "silver" = 500, MAT_COPPER = 20)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 500, "silver" = 500)
 	build_path = /obj/item/weapon/pickaxe/jackhammer
 	sort_string = "FAAAB"
 
@@ -28,14 +28,14 @@
 /datum/design/item/weapon/mining/pick_diamond
 	id = "pick_diamond"
 	req_tech = list(TECH_MATERIAL = 6)
-	materials = list(MAT_WOOD = 2000, "diamond" = 3000)
+	materials = list("diamond" = 3000)
 	build_path = /obj/item/weapon/pickaxe/diamond
 	sort_string = "FAAAD"
 
 /datum/design/item/weapon/mining/drill_diamond
 	id = "drill_diamond"
 	req_tech = list(TECH_MATERIAL = 6, TECH_POWER = 4, TECH_ENGINEERING = 4)
-	materials = list(MAT_ALUMINIUM = 2000, DEFAULT_WALL_MATERIAL = 1000, "glass" = 500, "diamond" = 2000, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 3000, "glass" = 1000, "diamond" = 2000)
 	build_path = /obj/item/weapon/pickaxe/diamonddrill
 	sort_string = "FAAAE"
 
@@ -45,13 +45,6 @@
 	desc = "Used to check spatial depth and density of rock outcroppings."
 	id = "depth_scanner"
 	req_tech = list(TECH_MAGNET = 2, TECH_ENGINEERING = 2, TECH_BLUESPACE = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 1000,"glass" = 1000, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 1000,"glass" = 1000)
 	build_path = /obj/item/device/depth_scanner
 	sort_string = "FBAAA"
-
-/datum/design/item/weapon/mining/mining_scanner
-	id = "mining_scanner"
-	req_tech = list(TECH_MAGNET = 3, TECH_ENGINEERING = 4, TECH_BLUESPACE = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 1000,"glass" = 500, MAT_COPPER = 250)
-	build_path = /obj/item/weapon/mining_scanner/advanced
-	sort_string = "FBAAB"
\ No newline at end of file
diff --git a/code/modules/research/designs/misc.dm b/code/modules/research/designs/misc.dm
index 83a433a4e3d..2ce34f34856 100644
--- a/code/modules/research/designs/misc.dm
+++ b/code/modules/research/designs/misc.dm
@@ -8,7 +8,7 @@
 	name = "Communicator"
 	id = "communicator"
 	req_tech = list(TECH_DATA = 2, TECH_MAGNET = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500)
 	build_path = /obj/item/device/communicator
 	sort_string = "TAAAA"
 
@@ -17,7 +17,7 @@ datum/design/item/general/laserpointer
 	desc = "Don't shine it in your eyes!"
 	id = "laser_pointer"
 	req_tech = list(TECH_MAGNET = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 100, "glass" = 50, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 100, "glass" = 50)
 	build_path = /obj/item/device/laser_pointer
 	sort_string = "TAABA"
 
@@ -25,7 +25,7 @@ datum/design/item/general/laserpointer
 	name = "handheld translator"
 	id = "translator"
 	req_tech = list(TECH_DATA = 3, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 3000, "glass" = 3000, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 3000, "glass" = 3000)
 	build_path = /obj/item/device/universal_translator
 	sort_string = "TAACA"
 
@@ -33,7 +33,7 @@ datum/design/item/general/laserpointer
 	name = "earpiece translator"
 	id = "ear_translator"
 	req_tech = list(TECH_DATA = 5, TECH_ENGINEERING = 5)	//It's been hella miniaturized.
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 2000, "gold" = 1000, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 2000, "gold" = 1000)
 	build_path = /obj/item/device/universal_translator/ear
 	sort_string = "TAACB"
 
@@ -51,7 +51,7 @@ datum/design/item/general/laserpointer
 	desc = "Allows for deciphering the binary channel on-the-fly."
 	id = "binaryencrypt"
 	req_tech = list(TECH_ILLEGAL = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 300, "glass" = 300, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 300, "glass" = 300)
 	build_path = /obj/item/device/encryptionkey/binary
 	sort_string = "TBAAA"
 
@@ -60,7 +60,7 @@ datum/design/item/general/laserpointer
 	desc = "A kit of dangerous, high-tech equipment with changeable looks."
 	id = "chameleon"
 	req_tech = list(TECH_ILLEGAL = 2)
-	materials = list(MAT_PLASTIC = 500, MAT_COPPER = 500, DEFAULT_WALL_MATERIAL = 500)
+	materials = list(DEFAULT_WALL_MATERIAL = 500)
 	build_path = /obj/item/weapon/storage/box/syndie_kit/chameleon
 	sort_string = "TBAAB"
 
diff --git a/code/modules/research/designs/modular_computer.dm b/code/modules/research/designs/modular_computer.dm
index 0a3f2a1eec4..e78a776c1c8 100644
--- a/code/modules/research/designs/modular_computer.dm
+++ b/code/modules/research/designs/modular_computer.dm
@@ -9,14 +9,14 @@
 	name = "basic hard drive"
 	id = "hdd_basic"
 	req_tech = list(TECH_DATA = 1, TECH_ENGINEERING = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 100, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 100)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/
 	sort_string = "VAAAA"
 
 /datum/design/item/modularcomponent/disk/advanced
 	name = "advanced hard drive"
 	id = "hdd_advanced"
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 200, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 200)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/advanced
 	sort_string = "VAAAB"
 
@@ -24,7 +24,7 @@
 	name = "super hard drive"
 	id = "hdd_super"
 	req_tech = list(TECH_DATA = 3, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 8000, "glass" = 400, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 8000, "glass" = 400)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/super
 	sort_string = "VAAAC"
 
@@ -32,7 +32,7 @@
 	name = "cluster hard drive"
 	id = "hdd_cluster"
 	req_tech = list(TECH_DATA = 4, TECH_ENGINEERING = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 16000, "glass" = 800, MAT_COPPER = 40)
+	materials = list(DEFAULT_WALL_MATERIAL = 16000, "glass" = 800)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/cluster
 	sort_string = "VAAAD"
 
@@ -40,7 +40,7 @@
 	name = "small hard drive"
 	id = "hdd_small"
 	req_tech = list(TECH_DATA = 2, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 200, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 200)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/small
 	sort_string = "VAAAE"
 
@@ -48,7 +48,7 @@
 	name = "micro hard drive"
 	id = "hdd_micro"
 	req_tech = list(TECH_DATA = 1, TECH_ENGINEERING = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 100, MAT_COPPER = 20)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 100)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/micro
 	sort_string = "VAAAF"
 
@@ -58,7 +58,7 @@
 	name = "basic network card"
 	id = "netcard_basic"
 	req_tech = list(TECH_DATA = 2, TECH_ENGINEERING = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 100, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 100)
 	build_path = /obj/item/weapon/computer_hardware/network_card
 	sort_string = "VBAAA"
 
@@ -66,7 +66,7 @@
 	name = "advanced network card"
 	id = "netcard_advanced"
 	req_tech = list(TECH_DATA = 4, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 200, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 1000, "glass" = 200)
 	build_path = /obj/item/weapon/computer_hardware/network_card/advanced
 	sort_string = "VBAAB"
 
@@ -74,7 +74,7 @@
 	name = "wired network card"
 	id = "netcard_wired"
 	req_tech = list(TECH_DATA = 5, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 400, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 400)
 	build_path = /obj/item/weapon/computer_hardware/network_card/wired
 	sort_string = "VBAAC"
 
@@ -84,7 +84,7 @@
 	name = "standard battery module"
 	id = "bat_normal"
 	req_tech = list(TECH_POWER = 1, TECH_ENGINEERING = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000)
 	build_path = /obj/item/weapon/computer_hardware/battery_module
 	sort_string = "VCAAA"
 
@@ -92,7 +92,7 @@
 	name = "advanced battery module"
 	id = "bat_advanced"
 	req_tech = list(TECH_POWER = 2, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000)
 	build_path = /obj/item/weapon/computer_hardware/battery_module/advanced
 	sort_string = "VCAAB"
 
@@ -100,7 +100,7 @@
 	name = "super battery module"
 	id = "bat_super"
 	req_tech = list(TECH_POWER = 3, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 8000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 8000)
 	build_path = /obj/item/weapon/computer_hardware/battery_module/super
 	sort_string = "VCAAC"
 
@@ -108,7 +108,7 @@
 	name = "ultra battery module"
 	id = "bat_ultra"
 	req_tech = list(TECH_POWER = 5, TECH_ENGINEERING = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 16000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 16000)
 	build_path = /obj/item/weapon/computer_hardware/battery_module/ultra
 	sort_string = "VCAAD"
 
@@ -116,7 +116,7 @@
 	name = "nano battery module"
 	id = "bat_nano"
 	req_tech = list(TECH_POWER = 1, TECH_ENGINEERING = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000)
 	build_path = /obj/item/weapon/computer_hardware/battery_module/nano
 	sort_string = "VCAAE"
 
@@ -124,7 +124,7 @@
 	name = "micro battery module"
 	id = "bat_micro"
 	req_tech = list(TECH_POWER = 2, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000)
 	build_path = /obj/item/weapon/computer_hardware/battery_module/micro
 	sort_string = "VCAAF"
 
@@ -134,7 +134,7 @@
 	name = "computer processor unit"
 	id = "cpu_normal"
 	req_tech = list(TECH_DATA = 3, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 8000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 8000)
 	build_path = /obj/item/weapon/computer_hardware/processor_unit
 	sort_string = "VDAAA"
 
@@ -142,7 +142,7 @@
 	name = "computer microprocessor unit"
 	id = "cpu_small"
 	req_tech = list(TECH_DATA = 2, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000)
 	build_path = /obj/item/weapon/computer_hardware/processor_unit/small
 	sort_string = "VDAAB"
 
@@ -150,7 +150,7 @@
 	name = "computer photonic processor unit"
 	id = "pcpu_normal"
 	req_tech = list(TECH_DATA = 5, TECH_ENGINEERING = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 32000, glass = 8000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 32000, glass = 8000)
 	build_path = /obj/item/weapon/computer_hardware/processor_unit/photonic
 	sort_string = "VDAAC"
 
@@ -158,7 +158,7 @@
 	name = "computer photonic microprocessor unit"
 	id = "pcpu_small"
 	req_tech = list(TECH_DATA = 4, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 16000, glass = 4000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 16000, glass = 4000)
 	build_path = /obj/item/weapon/computer_hardware/processor_unit/photonic/small
 	sort_string = "VDAAD"
 
@@ -168,7 +168,7 @@
 	name = "RFID card slot"
 	id = "cardslot"
 	req_tech = list(TECH_DATA = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 3000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 3000)
 	build_path = /obj/item/weapon/computer_hardware/card_slot
 	sort_string = "VEAAA"
 
@@ -176,7 +176,7 @@
 	name = "nano printer"
 	id = "nanoprinter"
 	req_tech = list(TECH_DATA = 2, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 3000, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 3000)
 	build_path = /obj/item/weapon/computer_hardware/nano_printer
 	sort_string = "VEAAB"
 
@@ -184,7 +184,7 @@
 	name = "tesla link"
 	id = "teslalink"
 	req_tech = list(TECH_DATA = 2, TECH_POWER = 3, TECH_ENGINEERING = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 10000, MAT_PHORON = 350, MAT_GOLD = 500)
+	materials = list(DEFAULT_WALL_MATERIAL = 10000)
 	build_path = /obj/item/weapon/computer_hardware/tesla_link
 	sort_string = "VEAAC"
 
@@ -198,7 +198,7 @@
 	name = "basic data crystal"
 	id = "portadrive_basic"
 	req_tech = list(TECH_DATA = 1)
-	materials = list("glass" = 8000, MAT_COPPER = 10)
+	materials = list("glass" = 8000)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/portable
 	sort_string = "VFAAA"
 
@@ -206,7 +206,7 @@
 	name = "advanced data crystal"
 	id = "portadrive_advanced"
 	req_tech = list(TECH_DATA = 2)
-	materials = list("glass" = 16000, MAT_COPPER = 20)
+	materials = list("glass" = 16000)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/portable/advanced
 	sort_string = "VFAAB"
 
@@ -214,6 +214,6 @@
 	name = "super data crystal"
 	id = "portadrive_super"
 	req_tech = list(TECH_DATA = 4)
-	materials = list("glass" = 32000, MAT_COPPER = 60)
+	materials = list("glass" = 32000)
 	build_path = /obj/item/weapon/computer_hardware/hard_drive/portable/super
 	sort_string = "VFAAC"
diff --git a/code/modules/research/designs/pdas.dm b/code/modules/research/designs/pdas.dm
index fe5d9b432e4..78fd01ec239 100644
--- a/code/modules/research/designs/pdas.dm
+++ b/code/modules/research/designs/pdas.dm
@@ -5,7 +5,7 @@
 	desc = "Cheaper than whiny non-digital assistants."
 	id = "pda"
 	req_tech = list(TECH_ENGINEERING = 2, TECH_POWER = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 	build_path = /obj/item/device/pda
 	sort_string = "WAAAA"
 
diff --git a/code/modules/research/designs/power_cells.dm b/code/modules/research/designs/power_cells.dm
index 69e31a05121..c3a736a5bb0 100644
--- a/code/modules/research/designs/power_cells.dm
+++ b/code/modules/research/designs/power_cells.dm
@@ -20,7 +20,7 @@
 	build_type = PROTOLATHE | MECHFAB
 	id = "basic_cell"
 	req_tech = list(TECH_POWER = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 50, MAT_COPPER = 15)
+	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 50)
 	build_path = /obj/item/weapon/cell
 	category = list("Misc")
 	sort_string = "BAAAA"
@@ -30,7 +30,7 @@
 	build_type = PROTOLATHE | MECHFAB
 	id = "high_cell"
 	req_tech = list(TECH_POWER = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 60, MAT_COPPER = 15)
+	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 60)
 	build_path = /obj/item/weapon/cell/high
 	category = list("Misc")
 	sort_string = "BAAAB"
@@ -39,7 +39,7 @@
 	name = "super-capacity"
 	id = "super_cell"
 	req_tech = list(TECH_POWER = 3, TECH_MATERIAL = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 70, MAT_COPPER = 15)
+	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 70)
 	build_path = /obj/item/weapon/cell/super
 	category = list("Misc")
 	sort_string = "BAAAC"
@@ -57,7 +57,7 @@
 	name = "device"
 	build_type = PROTOLATHE
 	id = "device"
-	materials = list(DEFAULT_WALL_MATERIAL = 350, "glass" = 25, MAT_COPPER = 5)
+	materials = list(DEFAULT_WALL_MATERIAL = 350, "glass" = 25)
 	build_path = /obj/item/weapon/cell/device
 	category = list("Misc")
 	sort_string = "BAABA"
@@ -66,7 +66,7 @@
 	name = "weapon"
 	build_type = PROTOLATHE
 	id = "weapon"
-	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 50, MAT_COPPER = 15)
+	materials = list(DEFAULT_WALL_MATERIAL = 700, "glass" = 50)
 	build_path = /obj/item/weapon/cell/device/weapon
 	category = list("Misc")
 	sort_string = "BAABB"
\ No newline at end of file
diff --git a/code/modules/research/designs/stock_parts.dm b/code/modules/research/designs/stock_parts.dm
index 2fc1e8dbff9..18e3c016163 100644
--- a/code/modules/research/designs/stock_parts.dm
+++ b/code/modules/research/designs/stock_parts.dm
@@ -40,14 +40,14 @@
 /datum/design/item/stock_part/hyper_matter_bin
 	id = "hyper_matter_bin"
 	req_tech = list(TECH_MATERIAL = 6, TECH_ARCANE = 2)
-	materials = list(MAT_ALUMINIUM = 200, MAT_VERDANTIUM = 60, MAT_TITANIUM = 75)
+	materials = list(DEFAULT_WALL_MATERIAL = 200, MAT_VERDANTIUM = 60, MAT_DURASTEEL = 75)
 	build_path = /obj/item/weapon/stock_parts/matter_bin/hyper
 	sort_string = "AAAAD"
 
 /datum/design/item/stock_part/omni_matter_bin
 	id = "omni_matter_bin"
 	req_tech = list(TECH_MATERIAL = 7, TECH_PRECURSOR = 2)
-	materials = list(MAT_TITANIUM = 2000, MAT_PLASTEEL = 100, MAT_MORPHIUM = 100, MAT_DURASTEEL = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, MAT_PLASTEEL = 100, MAT_MORPHIUM = 100, MAT_DURASTEEL = 100)
 	build_path = /obj/item/weapon/stock_parts/matter_bin/omni
 	sort_string = "AAAAE"
 
@@ -77,14 +77,14 @@
 /datum/design/item/stock_part/hyper_mani
 	id = "hyper_mani"
 	req_tech = list(TECH_MATERIAL = 6, TECH_DATA = 3, TECH_ARCANE = 2)
-	materials = list(MAT_ALUMINIUM = 200, MAT_VERDANTIUM = 50, MAT_TITANIUM = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 200, MAT_VERDANTIUM = 50, MAT_DURASTEEL = 50)
 	build_path = /obj/item/weapon/stock_parts/manipulator/hyper
 	sort_string = "AAABD"
 
 /datum/design/item/stock_part/omni_mani
 	id = "omni_mani"
 	req_tech = list(TECH_MATERIAL = 7, TECH_DATA = 4, TECH_PRECURSOR = 2)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_PLASTEEL = 500, MAT_MORPHIUM = 100, MAT_DURASTEEL = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, MAT_PLASTEEL = 500, MAT_MORPHIUM = 100, MAT_DURASTEEL = 100)
 	build_path = /obj/item/weapon/stock_parts/manipulator/omni
 	sort_string = "AAABE"
 
@@ -93,14 +93,14 @@
 /datum/design/item/stock_part/basic_capacitor
 	id = "basic_capacitor"
 	req_tech = list(TECH_POWER = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 	build_path = /obj/item/weapon/stock_parts/capacitor
 	sort_string = "AAACA"
 
 /datum/design/item/stock_part/adv_capacitor
 	id = "adv_capacitor"
 	req_tech = list(TECH_POWER = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 50)
 	build_path = /obj/item/weapon/stock_parts/capacitor/adv
 	sort_string = "AAACB"
 
@@ -114,7 +114,7 @@
 /datum/design/item/stock_part/hyper_capacitor
 	id = "hyper_capacitor"
 	req_tech = list(TECH_POWER = 6, TECH_MATERIAL = 5, TECH_BLUESPACE = 1, TECH_ARCANE = 1)
-	materials = list(MAT_ALUMINIUM = 200, MAT_GLASS = 100, MAT_VERDANTIUM = 30, MAT_TITANIUM = 25)
+	materials = list(DEFAULT_WALL_MATERIAL = 200, MAT_GLASS = 100, MAT_VERDANTIUM = 30, MAT_DURASTEEL = 25)
 	build_path = /obj/item/weapon/stock_parts/capacitor/hyper
 	sort_string = "AAACD"
 
@@ -130,14 +130,14 @@
 /datum/design/item/stock_part/basic_sensor
 	id = "basic_sensor"
 	req_tech = list(TECH_MAGNET = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 20, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 20)
 	build_path = /obj/item/weapon/stock_parts/scanning_module
 	sort_string = "AAADA"
 
 /datum/design/item/stock_part/adv_sensor
 	id = "adv_sensor"
 	req_tech = list(TECH_MAGNET = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 20, MAT_COPPER = 10)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, "glass" = 20)
 	build_path = /obj/item/weapon/stock_parts/scanning_module/adv
 	sort_string = "AAADB"
 
@@ -151,14 +151,14 @@
 /datum/design/item/stock_part/hyper_sensor
 	id = "hyper_sensor"
 	req_tech = list(TECH_MAGNET = 6, TECH_MATERIAL = 4, TECH_ARCANE = 1)
-	materials = list(MAT_ALUMINIUM = 50, MAT_GLASS = 20, MAT_SILVER = 50, MAT_VERDANTIUM = 40, MAT_TITANIUM = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 50, MAT_GLASS = 20, MAT_SILVER = 50, MAT_VERDANTIUM = 40, MAT_DURASTEEL = 50)
 	build_path = /obj/item/weapon/stock_parts/scanning_module/hyper
 	sort_string = "AAADD"
 
 /datum/design/item/stock_part/omni_sensor
 	id = "omni_sensor"
 	req_tech = list(TECH_MAGNET = 7, TECH_MATERIAL = 5, TECH_PRECURSOR = 1)
-	materials = list(MAT_ALUMINIUM = 1000, MAT_TITANIUM = 500, MAT_GLASS = 750, MAT_SILVER = 500, MAT_MORPHIUM = 60, MAT_DURASTEEL = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 1000, MAT_PLASTEEL = 500, MAT_GLASS = 750, MAT_SILVER = 500, MAT_MORPHIUM = 60, MAT_DURASTEEL = 100)
 	build_path = /obj/item/weapon/stock_parts/scanning_module/omni
 	sort_string = "AAADE"
 
@@ -188,14 +188,14 @@
 /datum/design/item/stock_part/hyper_micro_laser
 	id = "hyper_micro_laser"
 	req_tech = list(TECH_MAGNET = 6, TECH_MATERIAL = 6, TECH_ARCANE = 2)
-	materials = list(MAT_ALUMINIUM = 200, MAT_GLASS = 20, MAT_URANIUM = 30, MAT_VERDANTIUM = 50, MAT_TITANIUM = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 200, MAT_GLASS = 20, MAT_URANIUM = 30, MAT_VERDANTIUM = 50, MAT_DURASTEEL = 100)
 	build_path = /obj/item/weapon/stock_parts/micro_laser/hyper
 	sort_string = "AAAED"
 
 /datum/design/item/stock_part/omni_micro_laser
 	id = "omni_micro_laser"
 	req_tech = list(TECH_MAGNET = 7, TECH_MATERIAL = 7, TECH_PRECURSOR = 2)
-	materials = list(MAT_TITANIUM = 2000, MAT_GLASS = 500, MAT_URANIUM = 2000, MAT_MORPHIUM = 50, MAT_DURASTEEL = 100)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, MAT_GLASS = 500, MAT_URANIUM = 2000, MAT_MORPHIUM = 50, MAT_DURASTEEL = 100)
 	build_path = /obj/item/weapon/stock_parts/micro_laser/omni
 	sort_string = "AAAEE"
 
diff --git a/code/modules/research/designs/weapons.dm b/code/modules/research/designs/weapons.dm
index ee9c73423ef..f57b2851184 100644
--- a/code/modules/research/designs/weapons.dm
+++ b/code/modules/research/designs/weapons.dm
@@ -22,21 +22,21 @@
 /datum/design/item/weapon/energy/stunrevolver
 	id = "stunrevolver"
 	req_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 3, TECH_POWER = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000)
 	build_path = /obj/item/weapon/gun/energy/stunrevolver
 	sort_string = "MAAAA"
 
 /datum/design/item/weapon/energy/nuclear_gun
 	id = "nuclear_gun"
 	req_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 5, TECH_POWER = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000, "uranium" = 500, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000, "uranium" = 500)
 	build_path = /obj/item/weapon/gun/energy/gun/nuclear
 	sort_string = "MAAAB"
 
 /datum/design/item/weapon/energy/phoronpistol
 	id = "ppistol"
 	req_tech = list(TECH_COMBAT = 5, TECH_PHORON = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000, "phoron" = 3000, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000, "phoron" = 3000)
 	build_path = /obj/item/weapon/gun/energy/toxgun
 	sort_string = "MAAAC"
 
@@ -44,14 +44,14 @@
 	desc = "The lasing medium of this prototype is enclosed in a tube lined with uranium-235 and subjected to high neutron flux in a nuclear reactor core."
 	id = "lasercannon"
 	req_tech = list(TECH_COMBAT = 4, TECH_MATERIAL = 3, TECH_POWER = 3)
-	materials = list(MAT_TITANIUM = 5000, MAT_BOROSILICATE = 1000, "diamond" = 2000, MAT_COPPER = 50)
+	materials = list(DEFAULT_WALL_MATERIAL = 10000, "glass" = 1000, "diamond" = 2000)
 	build_path = /obj/item/weapon/gun/energy/lasercannon
 	sort_string = "MAAAD"
 
 /datum/design/item/weapon/energy/decloner
 	id = "decloner"
 	req_tech = list(TECH_COMBAT = 8, TECH_MATERIAL = 7, TECH_BIO = 5, TECH_POWER = 6)
-	materials = list(MAT_TITANIUM = 2750, "gold" = 5000,"uranium" = 10000)
+	materials = list("gold" = 5000,"uranium" = 10000)
 	build_path = /obj/item/weapon/gun/energy/decloner
 	sort_string = "MAAAE"
 
@@ -59,14 +59,14 @@
 	desc = "A gun that shoots high-powered glass-encased energy temperature bullets."
 	id = "temp_gun"
 	req_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 4, TECH_POWER = 3, TECH_MAGNET = 2)
-	materials = list(MAT_ALUMINIUM = 5000, "glass" = 500, "silver" = 3000)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 500, "silver" = 3000)
 	build_path = /obj/item/weapon/gun/energy/temperature
 	sort_string = "MAAAF"
 
 /datum/design/item/weapon/energy/flora_gun
 	id = "flora_gun"
 	req_tech = list(TECH_MATERIAL = 2, TECH_BIO = 3, TECH_POWER = 3)
-	materials = list(MAT_ALUMINIUM = 2000, "glass" = 500, "uranium" = 500)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 500, "uranium" = 500)
 	build_path = /obj/item/weapon/gun/energy/floragun
 	sort_string = "MAAAG"
 
@@ -117,15 +117,6 @@
 	build_path = /obj/item/weapon/storage/box/empshells
 	sort_string = "MABBC"
 
-/datum/design/item/weapon/ballistic/ammo/ptrshell
-	name = "14.5mm shell"
-	desc = "A dense-core projectile fired from a small cannon."
-	id = "ptrshell"
-	req_tech = list(TECH_COMBAT = 7, TECH_ILLEGAL = 4)
-	materials = list(MAT_TITANIUM = 4000, MAT_URANIUM = 500, MAT_PLASTEEL = 500)
-	build_path = /obj/item/ammo_casing/a145
-	sort_string = "MABBD"
-
 // Phase weapons
 
 /datum/design/item/weapon/phase/AssembleDesignName()
@@ -136,14 +127,14 @@
 /datum/design/item/weapon/phase/phase_pistol
 	id = "phasepistol"
 	req_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 2, TECH_POWER = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000)
 	build_path = /obj/item/weapon/gun/energy/phasegun/pistol
 	sort_string = "MACAA"
 
 /datum/design/item/weapon/phase/phase_carbine
 	id = "phasecarbine"
 	req_tech = list(TECH_COMBAT = 4, TECH_MATERIAL = 2, TECH_POWER = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 6000, "glass" = 1500, MAT_COPPER = 40)
+	materials = list(DEFAULT_WALL_MATERIAL = 6000, "glass" = 1500)
 	build_path = /obj/item/weapon/gun/energy/phasegun
 	sort_string = "MACAB"
 
@@ -167,7 +158,7 @@
 /datum/design/item/weapon/rapidsyringe
 	id = "rapidsyringe"
 	req_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 3, TECH_ENGINEERING = 3, TECH_BIO = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000, MAT_COPPER = 20)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000)
 	build_path = /obj/item/weapon/gun/launcher/syringe/rapid
 	sort_string = "MADAA"
 
@@ -183,7 +174,7 @@
 	desc = "An advanced chem spraying device."
 	id = "chemsprayer"
 	req_tech = list(TECH_MATERIAL = 3, TECH_ENGINEERING = 3, TECH_BIO = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "glass" = 1000)
 	build_path = /obj/item/weapon/reagent_containers/spray/chemsprayer
 	sort_string = "MADAC"
 
diff --git a/code/modules/research/designs/xenoarch_toys.dm b/code/modules/research/designs/xenoarch_toys.dm
index 99292d08f3f..7c69090b1bd 100644
--- a/code/modules/research/designs/xenoarch_toys.dm
+++ b/code/modules/research/designs/xenoarch_toys.dm
@@ -9,7 +9,7 @@
 	id = "ano_scanner"
 	desc = "Aids in triangulation of exotic particles."
 	req_tech = list(TECH_BLUESPACE = 3, TECH_MAGNET = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 10000,"glass" = 5000, MAT_COPPER = 20)
+	materials = list(DEFAULT_WALL_MATERIAL = 10000,"glass" = 5000)
 	build_path = /obj/item/device/ano_scanner
 	sort_string = "GAAAA"
 
@@ -18,7 +18,7 @@
 	id = "xenoarch_multitool"
 	req_tech = list(TECH_MAGNET = 3, TECH_ENGINEERING = 3, TECH_BLUESPACE = 3)
 	build_path = /obj/item/device/xenoarch_multi_tool
-	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 1000, "uranium" = 500, "phoron" = 500, MAT_COPPER = 40)
+	materials = list(DEFAULT_WALL_MATERIAL = 2000, "glass" = 1000, "uranium" = 500, "phoron" = 500)
 	sort_string = "GAAAB"
 
 /datum/design/item/weapon/xenoarch/excavationdrill
@@ -26,6 +26,6 @@
 	id = "excavationdrill"
 	req_tech = list(TECH_MATERIAL = 3, TECH_POWER = 2, TECH_ENGINEERING = 2, TECH_BLUESPACE = 3)
 	build_type = PROTOLATHE
-	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 4000, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 4000)
 	build_path = /obj/item/weapon/pickaxe/excavationdrill
 	sort_string = "GAAAC"
\ No newline at end of file
diff --git a/code/modules/research/designs/xenobio_toys.dm b/code/modules/research/designs/xenobio_toys.dm
index feb8d04f2c3..917f8ba6c31 100644
--- a/code/modules/research/designs/xenobio_toys.dm
+++ b/code/modules/research/designs/xenobio_toys.dm
@@ -7,14 +7,14 @@
 /datum/design/item/weapon/xenobio/slimebaton
 	id = "slimebaton"
 	req_tech = list(TECH_MATERIAL = 2, TECH_BIO = 2, TECH_POWER = 3, TECH_COMBAT = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000)
 	build_path = /obj/item/weapon/melee/baton/slime
 	sort_string = "HAAAA"
 
 /datum/design/item/weapon/xenobio/slimetaser
 	id = "slimetaser"
 	req_tech = list(TECH_MATERIAL = 3, TECH_BIO = 3, TECH_POWER = 4, TECH_COMBAT = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 5000, MAT_COPPER = 40)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000)
 	build_path = /obj/item/weapon/gun/energy/taser/xeno
 	sort_string = "HAAAB"
 
@@ -25,6 +25,6 @@
 	desc = "A hand-held body scanner able to learn information about slimes."
 	id = "slime_scanner"
 	req_tech = list(TECH_MAGNET = 2, TECH_BIO = 2)
-	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500, MAT_COPPER = 30)
+	materials = list(DEFAULT_WALL_MATERIAL = 500, "glass" = 500)
 	build_path = /obj/item/device/slime_scanner
 	sort_string = "HBAAA"
\ No newline at end of file
diff --git a/code/modules/research/mechfab_designs.dm b/code/modules/research/mechfab_designs.dm
index 8ff26d3d011..687ccd56a9e 100644
--- a/code/modules/research/mechfab_designs.dm
+++ b/code/modules/research/mechfab_designs.dm
@@ -357,13 +357,11 @@
 	name = "PBT \"Pacifier\" Mounted Taser"
 	id = "mech_taser"
 	build_path = /obj/item/mecha_parts/mecha_equipment/weapon/energy/taser
-	materials = list(DEFAULT_WALL_MATERIAL = 6500, MAT_COPPER = 1000)
 
 /datum/design/item/mecha/rigged_taser
 	name = "Jury-Rigged Taser"
 	id = "mech_taser-r"
 	build_path = /obj/item/mecha_parts/mecha_equipment/weapon/energy/taser/rigged
-	materials = list(DEFAULT_WALL_MATERIAL = 6500, MAT_COPPER = 200)
 
 /datum/design/item/mecha/shocker
 	name = "Exosuit Electrifier"
@@ -568,7 +566,7 @@
 	desc = "Automated repair droid, exosuits' best companion. BEEP BOOP"
 	id = "mech_repair_droid"
 	req_tech = list(TECH_MAGNET = 3, TECH_DATA = 3, TECH_ENGINEERING = 3)
-	materials = list(DEFAULT_WALL_MATERIAL = 7500, "gold" = 750, "silver" = 1500, MAT_ALUMINIUM = 3750)
+	materials = list(DEFAULT_WALL_MATERIAL = 7500, "gold" = 750, "silver" = 1500, "glass" = 3750)
 	build_path = /obj/item/mecha_parts/mecha_equipment/repair_droid
 
 /* These are way too OP to be buildable
@@ -594,7 +592,7 @@
 	desc = "Deploys a small medical drone capable of patching small wounds in order to stabilize nearby patients."
 	id = "mech_med_droid"
 	req_tech = list(TECH_PHORON = 3, TECH_MAGNET = 6, TECH_BIO = 5, TECH_DATA = 4, TECH_ARCANE = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 8000, MAT_GOLD = 2000, MAT_ALUMINIUM = 3750, MAT_VERDANTIUM = 2500, MAT_GLASS = 3000)
+	materials = list(DEFAULT_WALL_MATERIAL = 8000, MAT_GOLD = 2000, MAT_SILVER = 3000, MAT_VERDANTIUM = 2500, MAT_GLASS = 3000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/crisis_drone
 
 /datum/design/item/mecha/rad_drone
@@ -602,7 +600,7 @@
 	desc = "Deploys a small hazmat drone capable of purging minor radiation damage in order to stabilize nearby patients."
 	id = "mech_rad_droid"
 	req_tech = list(TECH_PHORON = 4, TECH_MAGNET = 5, TECH_BIO = 6, TECH_DATA = 4, TECH_ARCANE = 1)
-	materials = list(DEFAULT_WALL_MATERIAL = 8000, MAT_GOLD = 2000, MAT_ALUMINIUM = 2500, MAT_URANIUM = 1000, MAT_VERDANTIUM = 1000, MAT_GLASS = 3000)
+	materials = list(DEFAULT_WALL_MATERIAL = 8000, MAT_GOLD = 2000, MAT_URANIUM = 3000, MAT_VERDANTIUM = 2500, MAT_GLASS = 3000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/crisis_drone/rad
 
 /datum/design/item/mecha/medanalyzer
@@ -610,7 +608,7 @@
 	desc = "An advanced mech-mounted device that is not quite as powerful as a stationary body scanner, though still suitably powerful."
 	id = "mech_med_analyzer"
 	req_tech = list(TECH_PHORON = 4, TECH_MAGNET = 5, TECH_BIO = 5, TECH_DATA = 4)
-	materials = list(MAT_ALUMINIUM = 4500, MAT_GOLD = 2000, MAT_URANIUM = 3000, MAT_GLASS = 3000)
+	materials = list(MAT_PLASTEEL = 4500, MAT_GOLD = 2000, MAT_URANIUM = 3000, MAT_GLASS = 3000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/tool/powertool/medanalyzer
 
 /datum/design/item/mecha/jetpack
@@ -619,7 +617,7 @@
 	id = "mech_jetpack"
 	req_tech = list(TECH_ENGINEERING = 3, TECH_MAGNET = 4) //One less magnet than the actual got-damn teleporter.
 	build_path = /obj/item/mecha_parts/mecha_equipment/tool/jetpack
-	materials = list(MAT_ALUMINIUM = 7500, "silver" = 300, "glass" = 600)
+	materials = list(DEFAULT_WALL_MATERIAL = 7500, "silver" = 300, "glass" = 600)
 
 /datum/design/item/mecha/phoron_generator
 	desc = "Phoron Reactor"
@@ -664,7 +662,7 @@
 	desc = "A heavy duty bore. Bigger, better, stronger than the core sampler, but not quite as good as a large drill."
 	id = "mech_ground_drill"
 	req_tech = list(TECH_MATERIAL = 4, TECH_ENGINEERING = 2, TECH_PHORON = 1)
-	materials = list(MAT_ALUMINIUM = 5000, "silver" = 3000, DEFAULT_WALL_MATERIAL = 2000)
+	materials = list(DEFAULT_WALL_MATERIAL = 7000, "silver" = 3000, "phoron" = 2000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/tool/drill/bore
 
 /datum/design/item/mecha/orescanner
@@ -672,7 +670,7 @@
 	desc = "A hefty device used to scan for subterranean veins of ore."
 	id = "mech_ore_scanner"
 	req_tech = list(TECH_MATERIAL = 2, TECH_MAGNET = 2, TECH_POWER = 2)
-	materials = list(MAT_ALUMINIUM = 3000, MAT_COPPER = 1000, "glass" = 1000)
+	materials = list(DEFAULT_WALL_MATERIAL = 4000, "glass" = 1000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/tool/orescanner
 
 /datum/design/item/mecha/advorescanner
@@ -680,7 +678,7 @@
 	desc = "A hefty device used to scan for the exact volumes of subterranean veins of ore."
 	id = "mech_ore_scanner_adv"
 	req_tech = list(TECH_MATERIAL = 5, TECH_MAGNET = 4, TECH_POWER = 4, TECH_BLUESPACE = 2)
-	materials = list(MAT_ALUMINIUM = 5000, "osmium" = 3000, "silver" = 1000)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, "osmium" = 3000, "silver" = 1000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/tool/orescanner/advanced
 
 /datum/design/item/mecha/runningboard
@@ -752,7 +750,7 @@
 	desc = "Exosuit-held nuclear reactor. Converts uranium and everyone's health to energy."
 	id = "mech_generator_nuclear"
 	req_tech = list(TECH_POWER= 3, TECH_ENGINEERING = 3, TECH_MATERIAL = 3)
-	materials = list(MAT_ALUMINIUM = 7500, "silver" = 375, MAT_LEAD = 1250)
+	materials = list(DEFAULT_WALL_MATERIAL = 7500, "silver" = 375, "glass" = 750)
 	build_path = /obj/item/mecha_parts/mecha_equipment/generator/nuclear
 
 /datum/design/item/mecha/speedboost_ripley
@@ -760,7 +758,7 @@
 	desc = "System enhancements and overdrives to make a mech's legs move faster."
 	id = "mech_speedboost_ripley"
 	req_tech = list( TECH_POWER = 5, TECH_MATERIAL = 4, TECH_ENGINEERING = 4)
-	materials = list(DEFAULT_WALL_MATERIAL = 10000, MAT_ALUMINIUM = 1000, "gold" = 1000)
+	materials = list(DEFAULT_WALL_MATERIAL = 10000, "silver" = 1000, "gold" = 1000)
 	build_path = /obj/item/mecha_parts/mecha_equipment/speedboost
 
 /datum/design/item/synthetic_flash
@@ -786,7 +784,7 @@
 	desc = "A space-bike's un-assembled frame."
 	id = "vehicle_chassis_spacebike"
 	req_tech = list(TECH_MATERIAL = 5, TECH_ENGINEERING = 6, TECH_BLUESPACE = 3, TECH_PHORON = 3)
-	materials = list(MAT_ALUMINIUM = 9000, "silver" = 3000, "phoron" = 3000, "osmium" = 1000)
+	materials = list(DEFAULT_WALL_MATERIAL = 12000, "silver" = 3000, "phoron" = 3000, "osmium" = 1000)
 	build_path = /obj/item/weapon/vehicle_assembly/spacebike
 
 /datum/design/item/mechfab/vehicle/quadbike_chassis
@@ -928,7 +926,7 @@
 	desc = "A compact cleaning-foam grenade system for a hardsuit."
 	id = "rig_grenade_cleanfoam"
 	req_tech = list(TECH_MATERIAL = 3, TECH_ENGINEERING = 3, TECH_BIO = 2, TECH_POWER = 2)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GLASS = 1000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 750)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GLASS = 1000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 750)
 	build_path = /obj/item/rig_module/cleaner_launcher
 
 /datum/design/item/mechfab/rigsuit/taser
@@ -936,7 +934,7 @@
 	desc = "A compact taser system for a hardsuit."
 	id = "rig_gun_taser"
 	req_tech = list(TECH_MATERIAL = 5, TECH_ENGINEERING = 3, TECH_MAGNET = 2, TECH_POWER = 3, TECH_COMBAT = 2)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500)
 	build_path = /obj/item/rig_module/mounted/taser
 
 /datum/design/item/mechfab/rigsuit/egun
@@ -960,7 +958,7 @@
 	desc = "A compact overclocking system for a hardsuit."
 	id = "rig_component_sprinter"
 	req_tech = list(TECH_MATERIAL = 5, TECH_ENGINEERING = 5, TECH_BIO = 4, TECH_POWER = 4)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500, MAT_VERDANTIUM = 1000)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500, MAT_VERDANTIUM = 1000)
 	build_path = /obj/item/rig_module/sprinter
 
 /datum/design/item/mechfab/rigsuit/meson
@@ -968,7 +966,7 @@
 	desc = "A compact meson visor for a hardsuit."
 	id = "rig_component_meson"
 	req_tech = list(TECH_MATERIAL = 4, TECH_ENGINEERING = 5, TECH_MAGNET = 3, TECH_POWER = 4)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_OSMIUM = 500)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_OSMIUM = 500)
 	build_path = /obj/item/rig_module/vision/meson
 
 /datum/design/item/mechfab/rigsuit/material
@@ -976,7 +974,7 @@
 	desc = "A compact material visor for a hardsuit."
 	id = "rig_component_material"
 	req_tech = list(TECH_MATERIAL = 4, TECH_ENGINEERING = 5, TECH_MAGNET = 3, TECH_POWER = 4)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_OSMIUM = 500)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_OSMIUM = 500)
 	build_path = /obj/item/rig_module/vision/material
 
 /datum/design/item/mechfab/rigsuit/nvg
@@ -984,7 +982,7 @@
 	desc = "A compact night-vision visor for a hardsuit."
 	id = "rig_component_nvg"
 	req_tech = list(TECH_MATERIAL = 5, TECH_ENGINEERING = 6, TECH_MAGNET = 4, TECH_POWER = 5)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_OSMIUM = 500, MAT_URANIUM = 1000)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_OSMIUM = 500, MAT_URANIUM = 1000)
 	build_path = /obj/item/rig_module/vision/nvg
 
 /datum/design/item/mechfab/rigsuit/sechud
@@ -992,7 +990,7 @@
 	desc = "A compact security visor for a hardsuit."
 	id = "rig_component_sechud"
 	req_tech = list(TECH_MATERIAL = 4, TECH_ENGINEERING = 3, TECH_MAGNET = 3, TECH_POWER = 2)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500, MAT_SILVER = 500)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500, MAT_SILVER = 500)
 	build_path = /obj/item/rig_module/vision/sechud
 
 /datum/design/item/mechfab/rigsuit/medhud
@@ -1000,7 +998,7 @@
 	desc = "A compact medical visor for a hardsuit."
 	id = "rig_component_medhud"
 	req_tech = list(TECH_MATERIAL = 4, TECH_ENGINEERING = 3, TECH_MAGNET = 3, TECH_BIO = 2)
-	materials = list(MAT_ALUMINIUM = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500, MAT_SILVER = 500)
+	materials = list(MAT_PLASTEEL = 2000, MAT_GRAPHITE = 1500, MAT_PLASTIC = 500, MAT_SILVER = 500)
 	build_path = /obj/item/rig_module/vision/medhud
 
 /datum/design/item/mechfab/rigsuit/voice
@@ -1032,7 +1030,7 @@
 	desc = "A compact chemical injector network for a hardsuit."
 	id = "rig_component_chemicals"
 	req_tech = list(TECH_MATERIAL = 5, TECH_ENGINEERING = 5, TECH_MAGNET = 5, TECH_BIO = 4)
-	materials = list(MAT_ALUMINIUM = 3000, MAT_GRAPHITE = 2000, MAT_PLASTIC = 3500, MAT_SILVER = 1750, MAT_GOLD = 1250)
+	materials = list(MAT_PLASTEEL = 3000, MAT_GRAPHITE = 2000, MAT_PLASTIC = 3500, MAT_SILVER = 1750, MAT_GOLD = 1250)
 	build_path = /obj/item/rig_module/chem_dispenser/injector/advanced/empty
 
 /datum/design/item/mechfab/rigsuit/teleporter
@@ -1049,7 +1047,7 @@
 	build_path = /obj/item/device/uav
 	time = 20
 	req_tech = list(TECH_MATERIAL = 6, TECH_ENGINEERING = 5, TECH_PHORON = 3, TECH_MAGNET = 4, TECH_POWER = 6)
-	materials = list(MAT_ALUMINIUM = 5000, "glass" = 6000, MAT_COPPER = 4000)
+	materials = list(DEFAULT_WALL_MATERIAL = 10000, "glass" = 6000, "silver" = 4000)
 
 // Exosuit Internals
 
@@ -1071,7 +1069,7 @@
 	category = list("Exosuit Internals")
 	id = "exo_int_armor_lightweight"
 	req_tech = list(TECH_MATERIAL = 2, TECH_ENGINEERING = 3)
-	materials = list(MAT_ALUMINIUM = 5000, MAT_PLASTIC = 3000)
+	materials = list(DEFAULT_WALL_MATERIAL = 5000, MAT_PLASTIC = 3000)
 	build_path = /obj/item/mecha_parts/component/armor/lightweight
 
 /datum/design/item/mechfab/exointernal/reinf_armor