So registration marks were an excellent idea. After measuring the peak-to peak distance of the “dish” on the DSA keycaps, I set a 0.1mm dot on two corners and simply didn’t ink those corners. I’m still eyeballing the laser’s framing operation, but it’s going well enough that I ran a couple of batches of 9 keycaps with alignment no worse than when I was doing one at a time. I think a second set could be even better, with a proper jig for registration and maybe having most legends towards a corner, as centered legends need to be consistent and accurate. Corner legends just need to be consistent.
So registration marks were an excellent idea. After measuring the peak-to peak distance of the “dish” on the DSA keycaps, I set a 0.1mm dot on two corners and simply didn’t ink those corners. I’m still eyeballing the laser’s framing operation, but it’s going well enough that I ran a couple of batches of 9 keycaps with alignment no worse than when I was doing one at a time. I think a second set could be even better, with a proper jig for registration and maybe having most legends towards a corner, as centered legends need to be consistent and accurate. Corner legends just need to be consistent.
Progress.