Axis Tuning

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31 Aug 2021 19:08 #219275 by kedgardov
Axis Tuning was created by kedgardov
Hello! I'm new to linuxcnc and mesa cards.I'm trying to tune my cnc mill axis in PNCconfig wizard{Using mesa 7i76e card}. So far I can move my motors{NEMA 23 steppers}. However when I specify a test area of "X"in. IE, -2in the total distance traveled of my machine is way higher, {Around 11.5in}. I'm using DM542T divers with a microstepping of 4 (which I specified in the previous configuration window. I will really appreciate any input on why it isn't moving as it is supposed to as well as any source where I can find relevant information on the topic. I've been reading linuxcnc manual however I can't find any relevant information on the issue.
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31 Aug 2021 22:28 #219292 by tommylight
Replied by tommylight on topic Axis Tuning
Motor pulley teeth?
Gear ratio?
Final drive?

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31 Aug 2021 22:45 - 31 Aug 2021 22:45 #219293 by PCW
Replied by PCW on topic Axis Tuning
Also looking and the tuning page, you don't want a
P term of 10000, normally, this is set to 1000 for a
1000 Hz servo thread rate (1 ms period)
Last edit: 31 Aug 2021 22:45 by PCW.

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01 Sep 2021 22:46 #219371 by kedgardov
Replied by kedgardov on topic Axis Tuning
I'm using a timing belt with 24 teeth on the gears. The belt has a 3mm pitch

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01 Sep 2021 23:20 #219372 by tommylight
Replied by tommylight on topic Axis Tuning
24X3=72mm for one revolution,
200/72=2.7777778 steps per mm,
2.7777778Xmicrosteps on the drive=scale in the ini file.

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