Who wants a new printing HP-42s?

[ziggurat29]

FWIW, the printer cores came in from China last week, and I did manage to get the IR-to-receipt-printer adapter working and printing from my 28C. (Pictures and prose on the project link https://hackaday.io/project/25616, for the curious).

As mentioned, I am not going into the printer business; this was a side project for amusement. I do notice the Original Poster had considered doing some kickstarter or something. If he wants to do that and has any use for the code etc. I built here, he's welcome to it. In the end, the IR part was more straightforward than I expected, and the printer was more... obstreperous.