Loosely based on grumpy_scramblers shinwa ruler stop. Designed for a ruler that is 1mm thick x 15mm wide. Takes a heat set brass insert for the thumb-screw. Pilot hole for insert is 4mm.
I used this model for the M3 thumb-screw. https://www.printables.com/model/134386-metric-thumb-screws-thumb-screw.
The M3 screw is 8mm in length
The author remixed this model.