CAD CAM EDM DRO - Yahoo Group Archive

Re: EMC problem processing Vector G-code

Posted by Fred Smith
on 2004-07-10 19:24:26 UTC
--- In CAD_CAM_EDM_DRO@yahoogroups.com, "reed_irion"
<Reed_Irion@h...> wrote:
> So when I put in this code to the EMC:
> N31 G01 X0.219 Y-0.250 F0.9
> N32 G03 X-0.250 Y0.219 I-0.469 J0.000
> N33 G01 X-4.123 Y0.219
> N34 G03 X-4.492 Y0.040 I0.000 J-0.469
> N35 G01 X-4.917 Y-0.501

> I get a "radius to end of arc differs from radius to start of
arc..."
> How do I get Vector to correct the arc so that EMC will run it, or
> what do I have to adjust in the emc.ini ?

Always use at least 4 decimals in Vector for inch programmed arcs,
with EMC, more is better and some people have had to resort to 6
decimals to guarantee that all their arcs will process correctly.
There may be a setting in EMC now as it is not discussed too often
any more.

Are you using the EMC post processor that comes with Vector? It
should be set to output 4 decimals I think. (On the CD)

Also make sure that you have set EMC to the same type of arc
centers. Old EMC defaulted to absolute arc centers (thanks to an
Allen Bradley heritage). The Vector EMC post follows this
convention. If you have set your EMC to use incremental arc center
positions, be sure to adjust you Vector post to match. (Mach1/2 and
DeskCNC users may need to adjust this setting to use the EMC post)

This has been discussed extensively over the years on the Vector
user's forum at http://www.imsrv.com/discus

Fred Smith - IMService
Group discounts and specials are at:
http://www.cadcamcadcam.com/hobby

Discussion Thread

reed_irion 2004-07-10 17:50:24 UTC EMC problem processing Vector G-code Statman Designs, LLC 2004-07-10 17:53:41 UTC Re: [CAD_CAM_EDM_DRO] EMC problem processing Vector G-code Fred Smith 2004-07-10 19:24:26 UTC Re: EMC problem processing Vector G-code Jon Elson 2004-07-10 23:01:36 UTC Re: [CAD_CAM_EDM_DRO] EMC problem processing Vector G-code