Stone Furnace: (i'm going to redo this one later because it's too big)

Assembler 2:

Gun Turret:

Locomotive, belt, inserter:

i pretty much never use bots because i find them to be boring compared to the fun of working out belt paths, etc. one idea (maybe this has been posted, i don't have time to read the whole thread, sorry) is to give items a "weight" or "size" and base bot speed on the weight/size o...