bobcad or Mach3 issue???

cuebuyer4u

cuebuyer4u

Gamble Cues
Silver Member
Any idea why when I load programs in Mach3 that have been used in the past, it loads with all this rings in it that weren't there before?

any help is much appreciated.

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It could have to do with how you post arcs versus how Mach makes them.

In Mach3, go to the config> General Config> and look for the IJ mode. Change it from absolute to incremental or vice versa and regen the tool path.

If that doesn't change it, then I'd need to see the G code and the geometry you're trying to cut.


Royce
 
RBC said:
It could have to do with how you post arcs versus how Mach makes them.

In Mach3, go to the config> General Config> and look for the IJ mode. Change it from absolute to incremental or vice versa and regen the tool path.

If that doesn't change it, then I'd need to see the G code and the geometry you're trying to cut.


Royce
Click to expand...

That worked!! Thank you very much Royce!!

I was freaking out lol
 
ElCorazonFrio said:
Is this due to the axes not being homed properly?
Click to expand...

No, actually it has to do with the arcs. I've seen it many times, and the fix is to just change the Mach3 setting. I'm not exactly sure what the issue is because I've not actually had G code and Mach settings that didn't work together. If I had a good repeatable example I could look at the code, the post processor, and the Mach profile and figure it out.

If the CAM software's (BobCad) post processor outputs arcs as incremental, but the machine (Mach3) is expecting g code written in absolute, or vice versa, the toolpath doesn't display right. The settings that we change are the Modal settings for IJ, so I think it really has to do with what was run last.


Royce
 
There is also another fix for this.... edit the post processor to use R for arcs instead of IJ...
It is selectable .... edit it with note pad.

I worked for me...


Kim
 
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