Different movement on X and Y
28 Mar 2022 02:06 #238503
by bpark
Different movement on X and Y was created by bpark
Hi Forum,
I have very interresting issue and would like get help from someone who may already have good experience.
Situation,
- X and Y is being used for same model of NEMA 34 and driver and same microsteps and configuration.
- X's Pncconf's test move table as it is but Y's Pncconf's test move not exactly as it will be
- after various combination of configuration params for Y, I cannot solved the situation.
One of my final test is chinging connect path
from X driver - X motor (move distance correct), Y driver - Y motor (move distance incorrect)
to X driver - Y motor and Y driver - to X motor
and turn out Y's move distance still does not correct.
by assmuing Y may need more torque, so I changed microsteps to low from 20(4000 sptes) to 8 (1600 steps) but it also does not works yet.
Would be great if someone share experience or any clue to make it correct.
I have very interresting issue and would like get help from someone who may already have good experience.
Situation,
- X and Y is being used for same model of NEMA 34 and driver and same microsteps and configuration.
- X's Pncconf's test move table as it is but Y's Pncconf's test move not exactly as it will be
- after various combination of configuration params for Y, I cannot solved the situation.
One of my final test is chinging connect path
from X driver - X motor (move distance correct), Y driver - Y motor (move distance incorrect)
to X driver - Y motor and Y driver - to X motor
and turn out Y's move distance still does not correct.
by assmuing Y may need more torque, so I changed microsteps to low from 20(4000 sptes) to 8 (1600 steps) but it also does not works yet.
Would be great if someone share experience or any clue to make it correct.
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29 Mar 2022 21:25 - 29 Mar 2022 21:26 #238662
by andypugh
Replied by andypugh on topic Different movement on X and Y
Despite what you can read in many places, lowering the microsteps does _not_ give you more torque.
What voltage are you running the motors at? What is the rated current of the motors, and what are your drives set to?
Does the Y motor need to move considerably more weight by any chance?
is there any scope for changing gear or belt ratios?
What voltage are you running the motors at? What is the rated current of the motors, and what are your drives set to?
Does the Y motor need to move considerably more weight by any chance?
is there any scope for changing gear or belt ratios?
Last edit: 29 Mar 2022 21:26 by andypugh.
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30 Mar 2022 04:34 #238690
by rodw
Replied by rodw on topic Different movement on X and Y
Andy, Thanks for confirming what I always thought but nobody else believed!Despite what you can read in many places, lowering the microsteps does _not_ give you more torque.
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