Summary

Simple small G-Clamp fully printable without support.
Additional a larger frame and screw is provided which adds another centimeter.
The protector can be reused for the larger clamp.

I gave the screw a fair amount of space, so it should fit without problems into the frame screw hole. Should anyone still have an issue let me know and i can provide an additional version.

The best way to mount the protector is to use the clamp itself by closing the clamp until the screw ball and protector ball joint clicks together or use your thumb.

For my requirements i used only 25% (~3 hour print) because i need just to hold things in place while the glue is drying. For more force 100% infill is recommended and don't forget it's not made of steel.

Small clamp:
clamp_frame.stl
screw_and_knurled_knob.stl
clamp_protector.stl

Large clamp (+1cm):
clamp_frame_long.stl
screw_and_knurled_knob_long.stl
clamp_protector.stl

Hope you enjoy
J

July 14, 2016: Added clamp_protector_0.6_loose.stl. The protector will not fall of but be very loose connected.

July 15, 2016: Added screw_and_knurled_knob.stl to print knob and screw together
Remove old separated knob and screw versions.