On Sunday, June 16, 2019 at 2:25:13 PM UTC-7, Jim Wilkins wrote:

I spent a year drawing the fonts for a new printer, dot by dot, the
full IBM character sets, in regular, bold and italic.

Yow! It only took me an afternoon to create a lowercase font for
the old Versatec plotter; the V- 80 was a good low-cost producer,
with terrible hardware design and first-class software. It came with
a connect-the-dots font editing utility, but only one uppercase font.

Did those IBM character sets include APL fonts?

Electronic design trivia: the V-80 power supply used screw-terminal
capacitors, fastened directly to a thick (3mm) printed wiring board,
which was then wave-soldered (solder over screws). Some diodes were under
the capacitor, and when heated (and lifted) in the solder process
they melted through the insulation jacket on the electrolytic cans,
which shorted completely after some time in the field. Melted metal
sprayed at each event...

Repairing it, you then had to loosen the screws, with the solder-blobbed heads.