Cardboard box resizer

A simple and easy to print tool used to resize cardboard boxes. The included rail is 6in/150mm long with marks at 1/2in/12mm intervalsRequires 2x m3 brass inserts, 2x m3 screws and a ¼-20 thumbscrew. (can be printed as well model available HERE) You might need to chase the threaded hole for the thumbscrew with a tap to clean it out depending on your print settings.Included .stp and .f3d file to adjust to your needs.