This is a replacement for a tesa tape dispenser. I stole the blade from my pencil sharpener and installed it with the attached screw.

IMPORTANT
Read print instructions because you have to use supports in a few places.

Print instructions

You have to use supports in the shaft for the axis! I recommend using custom supports because there are relatively easy to remove and you do not have a lot artefacts on your whole print.

I included some pictures of my support generated in PrusaSlicer and I also uploaded the .3mf file so you can just download the settings into your slicer and slice your gcode with the support I used.

Post-Printing

Just insert the blade, screw it in and insert the scotch tape while putting the axis into the roller.