I was cleaning out a room and found some old cassette audiobooks I wanted to preserve digitally, so I could scrap the lossy physical copy. Unfortunately, my cassette player was also showing its age and did not have enough torque to rewind the tape since it was applying torque to the larger of the two tape windings.

Whipped this Thing up in a few minutes to use the increased torque of a drill. Be careful, a drill has more than enough torque to destroy your cassette. It worked well though!

Couldn't have done this improv at this low of cost without my 3D printer. Woohoo!

150 um

80

I used 2 shells, no field for it above

ymmv