RE: [CAD_CAM_EDM_DRO] Re: EMC and Taig w/ MicroProto

Hi Steve,

Can you comment more on how the A, B and C axis work in EMC2? I.E.
continuous rotation, shortest path, something else? Is there a way to
select the action needed?

LinuxCNC.org has the code, but I haven't seen a new RS-274 document, which
might hold the answers I'm looking for.

EMC2; E=MC2, I wonder if that was a coincidence? ;>)

Alan KM6VV

> > <snip>
> >
> Full 6-axis control works fine with EMC2. The spec used for EMC2
> development is called the "Kramer doc", it's the original NIST
> specification for the RS-274NGC language (otherwise known as G-code).
> The definition for A,B, and C axes is that if there's a move that
> includes both linear and rotary motion, then the feedrate (F word)
> defines the tooltip velocity in XYZ, and the ABC motions are set so that
> they complete at the same time as the XYZ. It's effectively gearing of
> the rotary axes to the cartesian move. Not much else can be done
> without knowing the construction of the machine (ie, does the head tilt
> or does the work tilt?)
> <snip>
> Hope this helps.
> -Steve
>