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Configuring LinuxCNC
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StepConf Wizard
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Backlash??
Backlash??
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05 Jun 2012 15:50 #20663
by conicio
After updating from emc2 to linuxcnc I have an issue on my Z axis. It travels i.e. 10 mm in one direction and 7 in the other. I know this is due to a backlash inherent to the trapezoidal thread. Where can I find to fix a backlash problem that I've got with the z axis?
I'm getting stuck
looking around int the stepconf wizard, the .ini and I can't find it.
Help please
Thanks
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05 Jun 2012 16:06 - 05 Jun 2012 16:06 #20665
by cncbasher
add BACKLASH = x to the axis[2] section of the ini
x = amount of backlash required
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06 Jun 2012 12:37 #20675
by andypugh
conicio wrote:
After updating from emc2 to linuxcnc I have an issue on my Z axis. It travels i.e. 10 mm in one direction and 7 in the other. I know this is due to a backlash inherent to the trapezoidal thread.
3mm backlash seems very unlikely. Do you actually have 3mm of thread pitch? I would imagine that 3mm of wear in the nut would convert it onto a tube...
Normally the weight of the knee or head takes up the Z backlash anyway.
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Configuring LinuxCNC
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StepConf Wizard
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Backlash??
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