Radius to end of arc error

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8 years 6 months ago #109319 by erikg
Replied by erikg on topic Radius to end of arc error
Check this page out if you're having a problem with this - you're in the wrong arc distance mode:

linuxcnc.org/docs/html/gcode/g-code.html#gcode:g90.1-g91.1

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8 years 6 months ago #109602 by trober14
Replied by trober14 on topic Radius to end of arc error
I'm having a similar issue. The funny thing is, the problem has been cropping up more and more often. Things I've tried:
-Remove helix moves from program. This helped on a couple programs I ran but not all.
-Increase accuracy in CAM software. Turned a 1 minute path generation into 1 hour, still no luck.
-Remove lead in/lead out moves. The error was cropping up on this type of move, when removed, the error showed up on the arc directly after the lead in.
-I've already checked the code and it was running G91.1 already.

Any other ideas? Attached is the g-code. Fails at line 18.

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8 years 6 months ago #109610 by aosowski
Replied by aosowski on topic Radius to end of arc error
@trober14 - Are you using fusion 360?

If so, when you are selecting the post processor, select linuxcnc, then go down and select properties. Under properties there is an option called "radius arcs". Try enabling that and see if it works.

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8 years 6 months ago #109674 by trober14
Replied by trober14 on topic Radius to end of arc error
SOLVED! Someone on a reddit forum recommended looking at the linux side of things since the code looked fine. I noticed in the error window, the arc start did not correspond to what the code was saying should be the start. Next I realized there was a tool table file that was installed with funky offsets that corresponded to the radius error. Deleted the offsets and all is happy. Seems odd that the offset only affected one side of the arc? Shouldnt the entire arc have shifted in the x or y direction by the value of the offset?
The following user(s) said Thank You: paulsao

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4 years 9 months ago #231696 by paulsao
Replied by paulsao on topic Radius to end of arc error
Where did you delete the offsets? I have a similar arch problem.

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3 years 7 months ago #266402 by evengravy
For benefit of others reading, these settings are in tool.tbl file along with the config files. I had same issue today, removing table offsets solved it.

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