T Nut for 3030 frame - Prusa MK3

thingiverse

This is a T nut designed specifically for inserting into aluminum frames, similar to those found on the Prusa MK3 3030 extrusion. To print them effectively, it's recommended to do so without supports and with 100% infill, followed by a light sanding process. Next, insert an M3 hex nut and push it firmly into place. PETG is the preferred material due to its strength. To utilize these T nuts, you'll need to remove the end of the frame first, but once in place, they work smoothly without any wobbling issues. Adjusting them within the frame becomes easier compared to using drop-in inserts. Here are some design guidelines for creating strong parts that connect to these T nuts using M3 12mm screws: - Design a part with a minimum width of 10mm. - Ensure the part thickness is exactly 5.2 mm. - Create a circle with a diameter of 3.5 mm around the M3 shaft. - Use a screw head width of 6mm and indent it by 1.5 mm. Some of my designs incorporate these measurements, including: Side LCD mount: https://www.thingiverse.com/thing:3483560 Ribbon Cable Clip: https://www.thingiverse.com/thing:3485143