adds the RPD to autolathe and engiborgs, adjusted RPD materials to match the expensive autolathe price

code/modules/mob/living/silicon/robot/robot_modules.dm

@@ -189,6 +189,7 @@
 /obj/item/weapon/robot_module/engineering/New()
 	..()
 	modules += new /obj/item/weapon/rcd/borg(src)
+	modules += new /obj/item/weapon/rpd(src)
 	modules += new /obj/item/weapon/extinguisher(src)
 	modules += new /obj/item/weapon/weldingtool/largetank/cyborg(src)
 	modules += new /obj/item/weapon/screwdriver/cyborg(src)

code/modules/research/designs/autolathe_designs.dm

@@ -608,6 +608,14 @@
 	build_path = /obj/item/weapon/rcd
 	category = list("hacked", "Construction")
 
+/datum/design/rpd
+	name = "Rapid Pipe Dispenser (RPD)"
+	id = "rpd"
+	build_type = AUTOLATHE
+	materials = list(MAT_METAL = 75000, MAT_GLASS = 37500)
+	build_path = /obj/item/weapon/rpd
+	category = list("hacked", "Construction")
+
 /datum/design/rcl
 	name = "Rapid Cable Layer"
 	id = "rcl"