Steam-Powered Gatling Gun
The barrel, frame, and mechanics.
Linkage ejector/delinker sprocket thing.
Personal project, intended to be an exercise in coming up with a steampunk-ish styled weapon which could sort of semi-concievably actually built, instead of just a minigun with brass gears glued to it everywhere.
Still blocking the tripod, and a decent amount of the support structure for the casing and mechanics are still missing.
A boiling pressure pressure vessel directly connected to a firearm, what could possibly go wrong?