Old (big) mag cards?

[blackjetrock]

(07-03-2023 06:35 PM)John Garza (3665) Wrote:  Does anyone have a source for the mag cards for the older HP desktop machines?

Which machines are these? What size and thickness of card are they?

Quote:Or perhaps compatible magnetic media that can be cut to size?

-J

I've made cards for the Casio PRO FX-1 which are CR80 plastic card sized. I bought blank CR80 cards with Lo-Co magneti stripes then machined the timing stripes on a CNC machine. They work well. I was lucky with the size of these cards as you can get the blanks. I have also made cards for the Sharp PC-1300S whih are not a standard size. For those I used plastic card of the correct thickness and machined the shape of the card out using a CNC machine. To get the magnetic stripe on the card I managed to find and buy some self adhesive Lo-Co magnetic stripe material. That has to be cut to the correct width and length and be stuck to one side of the card.
I've had a quick look and it looks like you might be talking about a 9100? They seems to be larger cards, a bit like my Rockwell 920/3 cards. It looks like it would be feasible to make then out of plastic card with several self adhesive stripes stuck on a side, to make the magnetic material.
The CR80 cards were fairly cheap to make, the ones using the self adhesive material are a bit more expensive as you need to buy plastic sheet and lose quite a fraction of the sheet when cutting the cards out and then there's the cost of the magnetic strip. It looks do-able, though, and probably worth it if the original cards aren't available any more.

https://youtu.be/0ofbcMNU2Zk
https://youtu.be/1NByD6thetA

Andrew