How to build HP-41C custom overlays?

[Jake Schwartz]

(08-06-2022 03:12 PM)Allen Wrote:  

(08-01-2022 03:53 PM)pascal_meheut Wrote:  Is there a better way?

Some years ago ~2008? I hired a company to make a professional autocad file of the overlay and produce some stainless steel laser cut overlays. Since the global demand is much smaller now than back then, any scale production is inadvisable.

The DXF file is attached. No warranty expressed or implied whatsoever.

for 41c_Overlay_494.DXF
md5sum 9db039e4e0c270f613a307b331401f7f
sha256sum 80f83fd00b4f13181294337dea8ee1ab1c3901b34566670223d8e383be9a3e4d
(remove the pdf extension and uncompress)

Back in in 1985, (35 B.C.) J&D Manufacturing in Menlo Park, CA made a cleverly-named 24 pack of tear-off paper overlays called "Hangovers". I have some in my collection. (Should be listed in any Educalc Catalog from 1986-1987).

They appeared in EduCALC catalogs 30 (1986) through 44 (1989).
Jake