You can make a mold for a keycap stump and stem cavity, make a resin cast, then glue the keycap on. Maybe you can modify this: https://github-wiki-see.page/m/imyownyear/Z-Butt/wiki/Z-Butt-Mold-System

We had a roomba mounted print head before.

The technology could also be used to track the origins of illicit goods.

Does that mean ghost guns? That was my first thought when I heard of this tech.

Set your slicer to only use one wall for the top layer. Edit: also, calibrate your extrusion. This looks like slight underextrusion to me.

I don’t need to cut it to final thickness right away, since I have to graduate the thickness by hand anyway. Being in the ballpark of 3 or 4mm might be enough.

Edit: also, most veneers I found were plain-sawn, and I specifically need quarter-sawn.