setting up motor steps per revolution as well as stepper info
- xlordofpainx
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17 May 2024 12:42 #300821
by xlordofpainx
setting up motor steps per revolution as well as stepper info was created by xlordofpainx
Hey,
I was finally able to get my 7045 BXL mill conversion finished and am able to move the axises and, but now I want to calkibrate it.
I am trying to set up the pnc config and am stuck on the motors. I have nema 32 motors and New Step Servo Driver-SS86D drivers.
here are the drivers manual: vallder.com/wp-content/uploads/2022/07/p...65-Specification.pdf
But I do not understand it. There is a graph for the pulses which I am not sure how to input into the stepper info the original set-up default works Step on time 5000 step space 5000 direction hold 10000 setup 10000, but I don't know if that is okay.
The main problem I guess is the axis scale calculation.
I am using a 5mm/rev ball bearing screw which I input in the Leadscrew Metric Pitch menu, Then I have to inout motor steps per revolution,. Now the driver manual states that it can do a maximum of 16 channels 51200 microsteps which is chosen by going to the first menu and changing the value to 256 (there is also the option to use some kind of electric gearing which I do not fully understand). When I try to input 51200 it gets turned to 1000. Moreover I am not sure what to do with the microsteps multiplication factor as that is not a part of the options in the driver. I would assume that perhaps if 1000 is the max motor steps per revolution that I can inout I just have to put the rest in the multiplication factor so 51.2. Can someone tell me if I am getting this right? or I could put 256 in motor steps per revolution and then 200 in the multiplication factor?
When I input 256 and 200 as mentioned the motors start behaving very weirdly and start to wiggle at the end of jogging ( so I press jog for a second and stop then instead of stopping firmly it wiggles at the end)
I was finally able to get my 7045 BXL mill conversion finished and am able to move the axises and, but now I want to calkibrate it.
I am trying to set up the pnc config and am stuck on the motors. I have nema 32 motors and New Step Servo Driver-SS86D drivers.
here are the drivers manual: vallder.com/wp-content/uploads/2022/07/p...65-Specification.pdf
But I do not understand it. There is a graph for the pulses which I am not sure how to input into the stepper info the original set-up default works Step on time 5000 step space 5000 direction hold 10000 setup 10000, but I don't know if that is okay.
The main problem I guess is the axis scale calculation.
I am using a 5mm/rev ball bearing screw which I input in the Leadscrew Metric Pitch menu, Then I have to inout motor steps per revolution,. Now the driver manual states that it can do a maximum of 16 channels 51200 microsteps which is chosen by going to the first menu and changing the value to 256 (there is also the option to use some kind of electric gearing which I do not fully understand). When I try to input 51200 it gets turned to 1000. Moreover I am not sure what to do with the microsteps multiplication factor as that is not a part of the options in the driver. I would assume that perhaps if 1000 is the max motor steps per revolution that I can inout I just have to put the rest in the multiplication factor so 51.2. Can someone tell me if I am getting this right? or I could put 256 in motor steps per revolution and then 200 in the multiplication factor?
When I input 256 and 200 as mentioned the motors start behaving very weirdly and start to wiggle at the end of jogging ( so I press jog for a second and stop then instead of stopping firmly it wiggles at the end)
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- tommylight
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17 May 2024 12:50 #300823
by tommylight
Replied by tommylight on topic setting up motor steps per revolution as well as stepper info
Set the drives to 8 or 16 or max 32, not 256 that is way to much for anything usefull, unless driving microscope XY stages.
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- xlordofpainx
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17 May 2024 20:27 #300864
by xlordofpainx
Replied by xlordofpainx on topic setting up motor steps per revolution as well as stepper info
Thank you. You save me again.
When i set it to 16. How would that transfer to the numbers i have to input in the pnc config number of steps per turn and multiplication?
Fyi right now at 256 and 200 multiply when i run 10mm jog ot does 20.
When i set it to 16. How would that transfer to the numbers i have to input in the pnc config number of steps per turn and multiplication?
Fyi right now at 256 and 200 multiply when i run 10mm jog ot does 20.
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17 May 2024 21:23 #300869
by tommylight
Replied by tommylight on topic setting up motor steps per revolution as well as stepper info
Stepper motor does 200 steps per turn
1/16 microstepping means 200X16=3200 steps per turn
then add the reductions, in your case 5mm per turn of motion, so 3200/5=640 steps per mm of motion.
In the wizard, leave pulley/motor pulley at 1 and 1
motor should be at 200
microstepping at 16 (or whatever you set the drive to)
select ONLY leadscrew pitch and set it to 5
1/16 microstepping means 200X16=3200 steps per turn
then add the reductions, in your case 5mm per turn of motion, so 3200/5=640 steps per mm of motion.
In the wizard, leave pulley/motor pulley at 1 and 1
motor should be at 200
microstepping at 16 (or whatever you set the drive to)
select ONLY leadscrew pitch and set it to 5
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