Cloud-based Tools:
- Onshape: You can upload the .PRT file and see if Onshape can automatically recognize it and allow you to work with it or convert it to another format.
- GrabCAD Workbench: This platform may also support .PRT files, especially if it’s a standard PTC Creo file.
drawbacks
- consider internet speed
Onshape
opensource 3D
freeCAD
- freeCAD
- easy to crash
- AMD HD 6700 1G = slow
opensource 2D
libreCAD