Here’s what happened ...
The waterjet is capable of cutting metal with a computer-controlled high powered jet of water with entrained abrasive (garnet, a semi-precious metal).
I decided to design a flexure which would have 4-way rotational symmetry and would permit circular motion of an attached object. I used Illustrator for a first draft, then CorelDraw to export as DXF. The DXF file could be imported by OMAX Layout and (after a huge amount of cleanup!) exported to OMAX Make for machining.
