Arcs on vertical planes

[Burkhardt]

Question to the file format gurus here....

I am working (on and off for a long time) on specialized CAM software for void-free finger/box joints. My current experimental software is using the g-code G2 and G3 commands for that but with the G18 and G19 plane settings, that means the arc is in a vertical plane (i.e. around a horizontal axis).

I found a document about Shopbot compatibility with g-code that said it can not translate the G18/19 commands but i don't know if that is old or still valid.

Anybody has insight here? If that is not possible and I want to make my program Shopbot compatible then I need to emulate the arc g-codes with linear approximation.

Thanks,

GB

[srwtlc]

Still true GB. It will need to be broken down into many small segments. Used to do it with an older cad/cam program and would then have to 'break interpolate' the arc before generating the SB code.

[Burkhardt]

Still true GB. It will need to be broken down into many small segments. Used to do it with an older cad/cam program and would then have to 'break interpolate' the arc before generating the SB code.

O.K. thanks. Not hard to do and the g-code arcs are anyway quirky.