I've been meaning to design a tape holder as part of my quest to Gridfinitize my makerspace. So I came up with this simple and compact yet effective design. Its only 1 part, includes a tool for cutting tape, and you can easily hot swap your rolls.
I've included magnet holes on the bottom, they are 6.1mm in diameter for press fitting the magnets. Please note because of different printers tolerances this might not work for you, but I have included a STEP file for editing in any CAD you'd like.
Print Settings:
The author marked this model as their own original creation.