CR80 card fixture for casio PRO fx-1 card milling

For holding a CR80 card while machining optical stripes for casio PRO fx-1 calculator.
The gcode file is the one I used to mill the stripes, you can probably make you oiwn to suit your machine.

https://trochilidae.blogspot.com/2019/04/card-success-i-like-it-when-plan-comes.html