Drop in T-Nut for Prusa 30x30 Profiles

These drop in t-nuts are special design for the 30x30 extrusions used by Prusa. They should fit other 3030 extrusions too.

I offer versions for M3, M5 and M5 nuts and for M5 also with a build in thread.

Print in the shown orientation. Use 3 or 4 perimeters for strength.