# 3D printing

* .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.