« Reply #1 on: Thu, 17 May 2018, 13:32:36 »
After sorting out my Teensy-related problems I'm now in the process of completing my Model M 122 keyboard project. On the numpad I'd like to convert the two keys above the enter key to a single two-row Plus key as it is standard on a regular Model M. Therefore I obtained a plus key and a white vertical stabilizer insert. It looks like it is not enough to remove the spring to install the insert deep enough into the barrel frame. So I have to remove the hammer also, which is only possible by doing a bolt or screw mod? Is my assumption correct?
That's right.
And I'm pretty sure that the vertical Unicomp insert is black and it is the horizontal one that is white.

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