• .f3D = Fusion360
• .ipt = Inventor 2021 design file
• .STP STEP (or STP) is a popular file format used to store and transfer 3D and 2D geometry models, parts, and design data.
• .STL = 3D print print file
• .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.