A homing problem...
11 Jan 2011 20:32 #6633
by nursum
A homing problem... was created by nursum
Hello,
when I home my machine (with servo drives) it stop at: X=0.016mm Y=0.022mm Z= -0.019mm A=359.991 for example. The "home" and the "home offset" are both set to zero at the ini-file for all axes. When I move with G00 X10 Y10 for example, the machine goes to X=10.016mm and Y=10.022mm and not to X=10.000mm! How can I tell the machine that the zeropoint is zero and not 0.016? Maybe it is a small thing but I can't find a solution... the "home offset" have no effort.
Ingo
when I home my machine (with servo drives) it stop at: X=0.016mm Y=0.022mm Z= -0.019mm A=359.991 for example. The "home" and the "home offset" are both set to zero at the ini-file for all axes. When I move with G00 X10 Y10 for example, the machine goes to X=10.016mm and Y=10.022mm and not to X=10.000mm! How can I tell the machine that the zeropoint is zero and not 0.016? Maybe it is a small thing but I can't find a solution... the "home offset" have no effort.
Ingo
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11 Jan 2011 21:23 #6635
by BigJohnT
Replied by BigJohnT on topic Re:A homing problem...
I'd bet you have an offset in effect. In the machine menu there is one to clear offsets.
John
John
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11 Jan 2011 21:45 #6636
by andypugh
Replied by andypugh on topic Re:A homing problem...
Press # ?
I think you are seeing actual feedback position rather than commanded position.
You might be able to get closer with tuning (perhaps a bit of I)
I think you are seeing actual feedback position rather than commanded position.
You might be able to get closer with tuning (perhaps a bit of I)
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- willburrrr2003
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26 May 2011 03:42 #10080
by willburrrr2003
Replied by willburrrr2003 on topic Re:A homing problem...
Was playing with homing lastnight, as I just got home and limit mounted on my Z axis. I had the same thing happen, and realized that it was after I touched off on my part and set coordinate to 0.0 . Had to clear my part coordinate (offset?) before the machine would home to machine Z0.0. it was under the Machine menu.
Regards,
Will
Regards,
Will
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26 May 2011 09:41 #10083
by andypugh
Replied by andypugh on topic Re:A homing problem...
willburrrr2003 wrote:
This might shed some light on the situation:
wiki.linuxcnc.org/emcinfo.pl?CoordinateSystems
I think you might be confusing machine coordinates with relative coordinates.Had to clear my part coordinate (offset?) before the machine would home to machine Z0.0. it was under the Machine menu.
This might shed some light on the situation:
wiki.linuxcnc.org/emcinfo.pl?CoordinateSystems
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