4x1 Gridfinity 3M Posca holder magnet base

A holder for 16 3M poscas on a 4x1 gridfinity base with magnet holes at the bottom.

You can print this without supports, works perfect on my p1s. 

This is for 3M poscas (13.5 mm), should work for any other market that size. 

Holds upright with no magnets but I recomend magnets.

Design by Androo4u on MakerWorld (license: BY).