interpolation and algorithms of multiple axes was Re: Pulse Gen

--- In CAD_CAM_EDM_DRO@egroups.com, "PhilC" <phil@p...> wrote:

>
> ----- Original Message -----
> From: "Wally K" <cnc4me@u...>
> <snip>
> >
> > Thanks for the reply Phil. I do not think the external pulse

circuit

> > has to do complicated things like circular interpolation. Why not
> > let the computer do that. Just have the external circuit generate
> > the stepper pulses.
> >
>
> Actually circular interpolation is not very hard at all. Ever

heard of the

> Bresenham Circular Interpolation Algorithm? Just a few shifts and

adds...

>
> Regards,
>
> Phil

I am just trying to keep things simple and universial. If we keep
this a simple pulse generator circuit. Then any of the freeware or
very low cost CNC controlor programs could more easily write a
interface for it. If Circular Interpolation would not interfere with
using this board as a simple pulse generator and it was just another
feature that could be used then i would say include it.


Wally K.