The NUT-O-MAT is a "nut" cracker I recently designed just because we had no one lying around... It works really well and is designed to crack walnuts. I printed the first one in Hatchbox ABS. Might as well print some more for christmas ;)

I designed the NUT-O-MAT with a print-in-place screw (should be removed afterwards) to avoid the need for support (see nut-o-mat_no_support.stl). The parts should be already properly oriented for printing.

2018-01-22 - UPDATE: I just uploaded a new version of the NUT-O-MAT (fixed a minor issue in the model). As I had issues removing the print-in-place screw, I tried to print the model without screw and supports (see nut-o-mat.stl) in PLA. It came out really well on my CR-10, so I recommend you guys to print this model.