3D printing
- .f3D = Fusion360
- .ipt = Inventor 2021 design file
- .STL = just 3D shape
- .3MF = 3D print slicer file
- .gcode = prusa file?
TPU: softer rubberish something
MJF: less amateur multi-jet-fusion process, looks acceptable for ECU case if nylon 12 whatever is nylon 12.