Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: kolias on July 02, 2022, 05:51:29 AM
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Got all limits/homing working and now I want to fine tune the 4 stepper motors which are all working fine but I find the jogging kind of rough.
Using the stepper calculator which I got from this forum I come up with a result of 16000 steps per inch which is a high number. If I remember correctly the number I used before was about 4000 steps per inch but I have lost the calcs.
My screws are 16mm diameter with10mm lead and single start. Motors are NEMA23, 270oz/in, 2.8A, Step angle 1.8 degrees, I use 8 microsteps and the motors are direct coupled.
What my steps per inch should be?
Thanks
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OK so with the calculator I have and with the info you have given I get 160 steps per mm and if you multiply that by 25.4
You get 4064 steps per in. does this sound about right?
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Thank you Charlie, that sound correct to me.
Are you familiar with an Excel spread sheet which was created by a member on this forum and it calculates the steps. Its very easy to use but I get as I said a high number and I was wondering why.
For now I will use 4064
Many thanks
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It might be the one I was using. I don't remember where I got it from. that will get you close and then you can use the axis calibration in Mach3 to get them spot on. Happy 4th.
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Hi,
with a 8 microstep per fullstep regime your stepper will require 1600 pulses to do one revolution. If the pitch of the screw is 10mm then:
1600 / 10 =160 steps per mm or 4064 steps per inch.
If the numbers you have supplied are correct this should be perfect, no further tuning or messing around required.
Craig