Increase M Comp Table Size (X-Axis)

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adrewfis
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Increase M Comp Table Size (X-Axis)

Post by adrewfis »

I'm trying to plug in numbers for my x-axis in the M-comp table and notice it only goes up to 8 while my travel (actual not radius) is 12.5". I would like to get the full range of my x-axis leadscrew and thus increase this table size to 12.5. I have my soft limit for x-axis set to -12.5" in the Wizard. Is there a way to do this?
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Re: Increase M Comp Table Size (X-Axis)

Post by cnckeith »

post a fresh report.zip
please explain another way what you are trying to accomplish. thanks,
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
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Re: Increase M Comp Table Size (X-Axis)

Post by adrewfis »

The M comp table for the x-axis only goes up to 8.000 and I need it go all the way to 12.5000 in order to compensate for the entire length of travel of that ball screw. The M comp table is making the calibration worse once I plug in the actual distances traveled on the x-axis. I'm getting fairly accurate readings out of the box without using M comp (accurate to 2-3 decimal places and consistent to 4th decimal place with each repeat command). I was wondering if not having numbers in the M comp table from 8.000 to 12.5000 was somehow causing the M comp calibration to make my numbers worse. Attached is the latest report.
Attachments
report_0035FF8A1904-0730203595_2021-04-13_02-25-23.zip
(753.16 KiB) Downloaded 73 times
adrewfis
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Re: Increase M Comp Table Size (X-Axis)

Post by adrewfis »

Any word on what I need to do to increase the table size for the X-Axis from -8 to -12.5? The X-Axis soft limit is set to -12.5 in the Wizard and the Z-Axis soft limit is set to -15.5. And now both M Comp tables don't go up to the soft limits on each axis (the Z-Axis table stops at -15.0). There's got to be a way that the M Comp table size is editable or at least matches the limits set in the Wizard.
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Re: Increase M Comp Table Size (X-Axis)

Post by tblough »

IIRC, you can open the file up in Excel and add the additional position entries and then you'll be able to add the deviations in CNC12.
Cheers,

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Re: Increase M Comp Table Size (X-Axis)

Post by adrewfis »

Thanks tblough. I didn't see a file called IIRC but one that shows up when I first click on the M Comp tab. The program said "Warning: file cnc-z.tab Travel limit settings do not match the number of entries." I opened up that file and the one for the X-Axis, editing them accordingly, saved them and then opened up CNC12 back to the M Comp area but still shows same -8 for X and -15 for Z. I made sure to close out of CNC12 and the files themselves before opening back up to see if changes were made but no luck.
cncsnw
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Re: Increase M Comp Table Size (X-Axis)

Post by cncsnw »

If you want to edit the files, see http://www.cncsnw.com/LaserComp.htm

You might find it easier to just exit CNC12, delete your cnc-x.tab and/or cnc-z.tab files, then restart CNC12. Next time you go to the M Comp table, CNC12 will make new files that match the current travel limits.
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Re: Increase M Comp Table Size (X-Axis)

Post by martyscncgarage »

IIRC= If I Recall Correctly
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adrewfis
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Re: Increase M Comp Table Size (X-Axis)

Post by adrewfis »

Deleting those files and then restarting CNC12 worked flawlessly for both X & Z-Axis. Thanks guys!

Thanks Marty for the acronym clarification.
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