Commodore Vic 20 Key Stem / Plunger

thingiverse

Older style Vic 20 Keyboard Plunger This is for the older style Vic 20 keyboard that uses little rubber domes all over the keyboard instead of the standard 'stretched carbon on rubber' piece with the later keyboards used on Vic 20 and C64. This keyboard does not use springs and relies on the rubber domes to push the key stem and key up. For that reason, it is important the plunger not bind or stick at all. You may need to sand/file or tweak the design. I'm new to this, so probably not 100% perfect. Remix as you like. Printing: I printed as is with some supports. The 'smaller' legs are the more critical ones, so you might have to file them a bit so the key moves smoothly. Another suggestion is split the key plunger in half, and print the halves laying down on the print bed. I didn't do this, but might later to get the print layers oriented in the same direction as the motion of the plunger instead of the ridges grinding the inside of the frame.