3D HP67 Parts Availability?

[jftman]

Almost looks like a shim made to go completely around the head and pressed fit, .02 millimeters bigger than the opening, similar to watch repair tolerances could leave the head tight and able to be nudged either up and down.

Assured that the light pressure on the card is less than the head tension against the sleeve.
Overall like a cylinder head sleeve.
Though the sleeve would be somewhat slim, it’s depth would give it strength to be inserted into the opening.

So, two tolerances. 0.02 inside for a snug fit on tge head,
Two hundredths of a millimeter outside for a snug fit in the deck.

The part can be made that orients the head in the center x, y.
The Z is operator determined.