I just did some research on the 3D printer idea, and found out they are not as expensive as most people think, but if you even consider making anything other than very small plastic parts you do need a very big machine.
I may actually buy one for an at home seller of small scale reproduction parts for hobbyists.
With a machine like this I can make a near perfect small scale replica of any firearm, who wouldn’t want a foot long model of a Ma Deuce or a Dillon 134?