Texas Instruments TI-59 Keyboard Pad

To reduce keyboard bounce on my vintage Texas Instruments TI-59 calculator (a common problem with older TI models in general), I designed this padding sheet to replace the standard (and nowadays mostly deteriorated) foam pad between the calculator's keys and the contact circuit board.

With this fix, the bounce problem has mostly disappeared, and keypresses feel snappier compared to the usual method of inserting a piece of thin packaging foam or similar material. Still, I plan to experiment a