Now I understand your intent.
3D printers and printing has many new avenues. I would ask, what you appear to want is a way to mass produce customizable/scalable joysticks and flight gear, via software and use of a 3D printer, yes?
So the question is of demand, ultimately. Who the bleep knows.................
I will give you my limited experience. As you know I build my own gear. I build it simple, with readily available parts and materials. I thought about putting kits together for various ww2 combat stick variations, ie: Japanese, Russian, british, usa All have specific mechanical differences. Keep it simple, provide the gimbals and plans and the slightly difficult parts.....make it possible for the more avid to take his/hers personal involvement the next step.
Nobody really cared, ultimately. There are plenty of available joysticks out there. Its too easy to buy and use the existing hardware offerings. Most want jet sticks, and unless what you got is super duper fabulous, makes you a proven vr killer...........
good luck in your endeavor.
ps; fact is its too dam ez to build your own gear without 3D printing. radio shack, leo bodnar, some wood and bolts and springs...............
CNC and 3D printing are separate processes.
CNC cuts out shapes from bulk materials, 3D printing builds up shape from liquid material.