TRS-80 Model III/4 key switch stem replacement repair
thingiverse
I obtained this TRS-80 Model 4 computer which had a couple of broken key stems (see pictures), and a couple of none-working keys. I desoldered all the keyswitches, which was pretty easy using my cheap ZD-915 desoldering tool. The keyswitches can easily be opened (take care not to break the fragile clamps) and cleaned. And I applied conductive paint to all of the rubber domes. For the keyswitches with broken stems I made a 3D-printable replacement.
With this file you will be able to print TRS-80 Model III/4 key switch stem replacement repair with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on TRS-80 Model III/4 key switch stem replacement repair .