I had some 30x30 Alluminium Extrusions at home but no T Nuts, and actually they really cost a lot. So I made some printble.
I made an M4 and an M5 version because i had both of them, anyway, if you need diffrent dimension and also for diffrend extrusion size feel free to ask.
Feel free to comment, ask, and (whynot?) to try it out leaving a feedback so to optimize project.
M4.stl | 55.3KB | |
M5.stl | 47.7KB |