Error message "Radius to end of arc differs....etc etc"

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5 years 7 months ago #203980 by Jocman
Glad to ear everything went fine.
BTW, at that time I fixed my problem by editing the setting for the postprocessor to linuxcnc output, more or less same as you did.

Andrea

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1 year 9 months ago #319052 by gekonko
Hello,
i get the same error in QtplasmaC v2.9-238.314 RIP with EN (and SK) locale and Metric system. I have tryed to change CENTER_ARC_RADIUS_TOLERANCE_MM for my machine, but without luck. It seems that this tolerance stays default and does not change. Unfortunately, I cannot change generated tolerance from this cad/cam. This software is prahistoric but I am bound to it because it has functions for generating custom hvac components and nesting. Problem is that generated files from this cad/cam are only with 0.1mm accuracy. 


the error is reasonably small for my application

 
changed ini file, I have also tried to use bigger tolerance = 0.5

 
this is how the workpiece should look like.

 

File Attachment:

File Name: 00937001nok_lcnc.ngc
File Size:503 B



 

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1 year 9 months ago #319056 by rodw
Try setting the arc distance mode at the beginning of the program
linuxcnc.org/docs/stable/html/gcode/g-co...ml#gcode:g90.1-g91.1
some times the code is in absolute mode and QTplasmac is expecting relative mode or vice versa.

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1 year 9 months ago #319060 by gekonko
Thank you for your response, but I forgot to include it in the .ngc file - I have tested it before and it does not help in my case.

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1 year 9 months ago #319065 by phillc54
Some things look odd with your gcode file:

The first N12760 should be commented out.
The second N12760 should have a J value of -89.450, not -89.500
N12770 should not be commented out.
The second N12800 should have a J value of 89.450, not -89.400

This comment at the top ";File converted successfully;" hints that a conversion was done somewhere, I don't think that it was successful.

This gcode loads:
Warning: Spoiler!

 

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1 year 9 months ago #319102 by gekonko
@phillc54:
I really shouldnt post at midnight. You are right. Lines with R90 were added by me manually and should be commented out.

"The second N12760 should have a J value of -89.450, not -89.500"
- yes and no, really. From the CAM the precision is fixed to 0.1 so therefore it is "correct" in this case. I really just need to adjust tolerance in linuxcnc somehow, because no possibility to change presision in cam. 

The source G-code is originally generated for esab NCE290. ";File converted successfully;" Means, it went trough parser which converts it to linuxcnc readable code without unknown command confilct (values are not checked).

If you are interested, there is complete program from CAM.

 

File Attachment:

File Name: pre00937001.txt
File Size:9.64 KB

just to show you, how the code looks before


 

File Attachment:

File Name: post00937001.ngc
File Size:34.22 KB

after converting to Linuxcnc readable code

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