I loved the fully printable clamp by johann517 over on Thingiverse, but lacking a base found its application for certain projects to be lacking/impeded. Remixed to enable mobile/modular use and make compatible with the Gridfinity standard:
Had to rebuild the entire body, extracted the screw hole and placed in a rebuilt frame to the exact dimensions of the original G-Clamp.
Ran off one each of the clamps with and without the magnets, my printer isn't super well tuned, but had no issues with tolerances with the screw body.
If you print, please throw a like and share your makes!
The author remixed this model.