I needed a 3030 drop-in T-Nut with M3 bolt, the model from adrianishikawa (https://www.thingiverse.com/thing:2762571) was great but it didn't turn properly in the 3030 groove.
So i edit his model to add some chamfer and change the size of the hole and the bolt from M5 to M3.

It works perfectly now.

Just put it in your slicer and print it without supports.

Category: DIY