Gridfinity 18650 – Khay 1x1 đựng 4 pin 18650

A 1x1 gridfinity bin that holds 4 18650 batteries.

It was made in openscad, here's the Github repo if you want to modify: https://github.com/glowcouch/Gridfinity18650.

There's two versions, a 3 unit high block, and a 4 unit high block.

You can print it with pretty low infill – I used 2%.