Designed after feedback from my first version. The edges are thicker but require much more raw material. (128g for this one vs 74g infill 100% base only)

I did not print this version because my first version suits me but according to the test part I printed (see photo) I think there will be no problem. It's not perfect but keep in mind that I'm self-taught.

This version differs a little from the other the location of the nuts allows an inerant nuts larger / wide than those I used

What you need:

I use this Countersunk Head M3 screw 14mm you also need 4 M3 nuts

Not mandatory but this 14mm hole cover can be a good finish.

Also using these small anti slip parts can be a good addition (something like 8x1.5mm)

Feel free to suggest improvements or ask me questions.