Re: [CAD_CAM_EDM_DRO] Re: CAM generating short lines not G02/G03 curvesegments

Charles Hixon wrote:

>
> Hi Alan, This sounds like a job for one of your linear programming
> g-code generator routines. (short program in BASIC or c. based on
> circle parameters to generate g-code and replace the segment block)
> Charles Hixon

I'm sure thats essentially what MetaCut Finish does
( http://www.metacut.com/ ).

Here is the algorithm:

Start:
- take the next 2 points (call them A & B )

Loop:
- get the next point (call it C)
- if they all lie on a circle (or helix!) and they should,
replace the 3 G01's with 1 G02/G03

- get the next point (call it D)
- if that point D lies on the same circle, drop its G01
and extend the previous G02/G03.

else
leave point D as a G01
go to Start

or something like that. Maybe the transition points (between curves)
get left as a G01, but most of the points on the curve get assimilated
into G02/G03's.

Yes, a utility like that shouldn't be too hard to code up in C.

regards
Doug Fortune
http://www.cncKITS.com