1000 pulse per rev limit?
- Ayden25
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20 Oct 2025 03:36 #336735
by Ayden25
1000 pulse per rev limit? was created by Ayden25
Hey all. I have dropped it to 800 so it works but I would like a higher resolution. I'm just wondering how I can get 1600 plus per rev in linux cnc so I can have .0001" per step
Thanks in advance.
Thanks in advance.
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- meister
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20 Oct 2025 05:31 #336736
by meister
Replied by meister on topic 1000 pulse per rev limit?
It always depends on the speed (rpm) and the hardware you are using. You should describe what you have in more detail.
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20 Oct 2025 08:07 #336737
by unknown
Replied by unknown on topic 1000 pulse per rev limit?
When you start talking tenths, you have to start looking an thermal expansion.
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20 Oct 2025 12:34 #336745
by Ayden25
Replied by Ayden25 on topic 1000 pulse per rev limit?
In the pncconf it just wont let me enter more then 1000 just running standard 200 pulse per rev closed loop steppers. My issue isnt really a hardware thing though I just cant enter more the 1000.
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20 Oct 2025 12:37 #336746
by Ayden25
Replied by Ayden25 on topic 1000 pulse per rev limit?
Yes this is true dont know what that has to do with hitting a software limmit? This isnt a router or plasma table being able to move tenths is going to be important.
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- PCW
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20 Oct 2025 14:29 #336750
by PCW
Replied by PCW on topic 1000 pulse per rev limit?
If you are talking about pncconfs scale calculator, the steps per turn number
is intended to be the number of full steps per turn. For almost all step motors,
this number will be 200. So for a standard drive you would leave the "Motor steps
per revolution" at 200 and then say if your drives are set for 16 microsteps per full step,
you would set the "Microstep Multiplication Factor" to 16. This would result in 3200
microsteps per revolution.
is intended to be the number of full steps per turn. For almost all step motors,
this number will be 200. So for a standard drive you would leave the "Motor steps
per revolution" at 200 and then say if your drives are set for 16 microsteps per full step,
you would set the "Microstep Multiplication Factor" to 16. This would result in 3200
microsteps per revolution.
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20 Oct 2025 19:48 #336767
by Ayden25
Replied by Ayden25 on topic 1000 pulse per rev limit?
Ah gotcha Dont know why it didnt cross my mind there may be a multiplication factor somwhere!
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20 Oct 2025 21:01 - 20 Oct 2025 21:02 #336777
by PCW
Replied by PCW on topic 1000 pulse per rev limit?
Not obvious because some step drives list the microstep ratio:
2,4,5,8,16,32 etc but some list steps per revolution, 400,800,1000,1600 etc
2,4,5,8,16,32 etc but some list steps per revolution, 400,800,1000,1600 etc
Last edit: 20 Oct 2025 21:02 by PCW.
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