This is a spool roller specifically designed to fit and not interfere with the print bed in a RatRig V-Core 4 enclosure while still holding a 3kg spool. This has been tested with the polymaker 3kg spools, and it fits perfectly. I would recommend pan head screws, as they are a bit lower profile.
Hardware required:
Print tips:
The author remixed this model.
This remix literally is just a cut down version of the original. The roller is 120mm wide, the sides are 5mm wide instead of 10, and the base is 135mm total width.