HP card reader drive coupling

[Kees Bouw]

(09-29-2021 05:25 PM)Divasson Wrote:  I have used successfully E6000 glue on several samples recently (after cleaning the old material residue). Its elasticity avoids fragility, and it "sounds" nicer than normal.

Very interesting. I recently repaired a HP-67 coupling (after removing all the old material) with a combination of wire insulation, shrink tubing (without shrinking it) and cling film to achieve a tight enough fit while still being somewhat flexible.
But using something that resembles the original construction, like elastic glue would be a much better solution. However, as Geoff mentioned, the big problem is how to center the shaft.