Hi Terry,
So another way to do it would be to generate a planar toolpath on a "surface" and post code for it, then a guy wrote a program that will generate a dxf file off of your gcode, which you can use at the waterjet. (There are some free cam programs to get the code if you dont have something like that)

The program is here on the cnczone forum:

http://www.cnczone.com/forums/opensource_software/8814-g-code_dxf-2.html#post183370

Some of the links will require an account made to log in to download it. He has it listed as open, but not sure if I can just post it here. Probably better left to aquire it from the source.

The dxf can be imported to MoI if you need to further work it...