3D printed parts

I fix classic cassette decks in my slow times , no BPC (black plastic crap) and many have nylon gears, levers and clutches thay crack over time and temperature. I had a tiny spur gear made by a member here and it worked great. Just be aware of the melt temp. The low melt PLA can be 'lost PLA' cast just like lost wax casting. Make something ie. 1 Weber DCOE mount for a 3x2 slant six setup, lay it up in plaster or casting mayerial and then burn the PLA out a drain in a 500F oven forna few hours. Fill with molten Aluminum...repeat, repeat.