models
grabcad.com
RPI-SBC-dat - RPI3-dat == https://grabcad.com/library/tag/raspberry-pi-3
https://cad.onshape.com/documents/54071b9bce3973a140c33fd2/w/cb3a52ded17cd4105d9416b1
raspberry-pi-zero-2-w-1 == https://grabcad.com/library/raspberry-pi-zero-2-w-1