I designed this to clamp on the edge of my printing workstation to prevent my AMS from vibrating off the edge. I’m sure I will find other uses for it in my workshop.  It has a throat of approximately 1 ¼” and uses a ¼-20 thread size for the adjusting screw.  I printed the adjusting screw with 100% infill.

Please be aware it is a plastic clamp and is not overly strong but can apply a good amount of force for what it is.

• I have posted an upgraded version of this clamp, it can be found Here.
• A larger C clamp can be found Here.