The original model didn't work so well for me. The idea was great, so i decided to copy the model.
Designed this to be easier to print on my machines. I forgot to add the magnet and i actually don't know how to make the same pattern on the original, so i take another route on that point.
Im also uploaded the step files of the model, so you can easily modify to your needs.
Printed with ABS, 0.2mm layer height and 3 walls.
23/02/2021 - added a deeper and longer top part.
The author remixed this model.