To rebuild a capstan for the Hp-85, 9815, 9825 tape drive, you need:

- Dremel tool + #402 mandrel + #194 HS cutter.

- Very fine sandpaper 3M 255p or similar,

- Pliers to hold the joint.

- Silicon tap joints: D10mmxd4mmxT4mm.

- Cutter or X-Acto


  • Check inside diameter
  • ...until you get the adequate size
  • Left=before, right=after.
  • And now the Thickness
  • A simple cutter/Xacto will do
  • Don't miss the cut!!!