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Gantry System reversing direction of Motor on y2
- Creative25
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14 Mar 2021 17:14 #202229
by Creative25
Gantry System reversing direction of Motor on y2 was created by Creative25
I am trying to test my setup for a gantry system. So I want Stepper Motors of y and y2 to move in opposite direction. Is this done by inverting the dir pin for y2 or is there a better way of doing it?
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14 Mar 2021 17:51 #202232
by PCW
Replied by PCW on topic Gantry System reversing direction of Motor on y2
I think there are at least four ways to do this, 2 in hal and 2 with wiring changes:
1. Inverting the direction pin in hal
2. Changing the sign of the step scale in hal
3. If you are using differential drive so you have
DIR+ and DIR-, swapping these will reverse the direction
4. Swapping polarity on one of the motor windings
Your choice...
1. Inverting the direction pin in hal
2. Changing the sign of the step scale in hal
3. If you are using differential drive so you have
DIR+ and DIR-, swapping these will reverse the direction
4. Swapping polarity on one of the motor windings
Your choice...
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- Creative25
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14 Mar 2021 18:13 #202238
by Creative25
Replied by Creative25 on topic Gantry System reversing direction of Motor on y2
Thanks for the info I did not know of swapping the dir pins , do they actually swap polarity?
I will use one of the wiring methods to keep it simple.
I will use one of the wiring methods to keep it simple.
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15 Mar 2021 15:19 #202358
by andypugh
I would always do it in HAL, to keep it simple.
You will always have access to HAL, but wiring gets buried in the machine.
I generally change the sign of the step_scale.
Replied by andypugh on topic Gantry System reversing direction of Motor on y2
I will use one of the wiring methods to keep it simple.
I would always do it in HAL, to keep it simple.
You will always have access to HAL, but wiring gets buried in the machine.
I generally change the sign of the step_scale.
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15 Mar 2021 17:35 #202375
by Creative25
Replied by Creative25 on topic Gantry System reversing direction of Motor on y2
Can’t find step_scale in Hal only in the ini file.
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15 Mar 2021 17:54 #202377
by andypugh
The HAL reads it from the INI, so change it in the INI.
Replied by andypugh on topic Gantry System reversing direction of Motor on y2
Can’t find step_scale in Hal only in the ini file.
The HAL reads it from the INI, so change it in the INI.
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15 Mar 2021 17:59 #202378
by Creative25
Replied by Creative25 on topic Gantry System reversing direction of Motor on y2
So basically I change the number that is there into a minus number
For example from 67 to -67 ?
For example from 67 to -67 ?
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15 Mar 2021 18:04 #202380
by andypugh
Replied by andypugh on topic Gantry System reversing direction of Motor on y2
Exactly.
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15 Mar 2021 18:48 #202386
by Creative25
Replied by Creative25 on topic Gantry System reversing direction of Motor on y2
It works.
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