Documation TM200 card reader - pinch roller restoration

[Noel Chiappa]

    > From: Guy Dunphy

    > The mechanics has no adjustment or spring tension on the pinch roller
    > positions. ... all the spring is in the rubber of the rollers.
    > But how much squish?
    > ...
    > I'm hoping someone might have some knowledge of how much punch card
    > reader pinch rollers should press against capstans. Does 0.2mm squish
    > seem right

To produce a given force on the card, the dimensional amount of squish needed
would depend on the rigidity of the material, no? A stiff material would
need/want less than something soft, I would think.

	Noel