A spacer which requires two M3 insert nuts.

This model is aimed at those who don't want to spend money on spacers that generally cost less than the shipping price.

Choose the file that matches your insert's depth (D4mm or D6mm).

Print it in a vertical direction; no support will be required.

I recommend 100% infill or lots of walls so that there is no empty space in the printed part.

Pay attention when you put in the heated insert because the wall is thin.

Since it is a printed part, I don't guarantee its strength. If you want a reliable piece, you will need to buy a metal spacer.