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General Mach Discussion / Stepper running rough with Mach3 at low speed
« on: October 24, 2013, 06:53:36 AM »
Hi Folks!
Im trying to set up my own built Plasma/Router Table with Mach3.
I use 6 Nm Nanotec Steppers with Nanotec SMCI36 controllers. When I run these Motors in 1/4 Step mode directly controlled by the NanoPro configuration software, which is connected to the SMCI36 controller (at RS485), the motors run very silently and equally at 10 RPM.
But when I jog the motors in Mach3 at the same speed, the motor produces noise und seems not to run so equally (but it runs..). At faster speeds, the motor seems to run ok when jogged by Mach3.
Also the max speed of the motor when controlled by Mach 3 is only 650 RPM. When I run the motor with the NanoPro configuration software, a can reach speeds up to 900 RPM without loosing stepps.
Has anyone an idea why this occurs? Is it normal that steppers controlled by Mach3 are noise and make high pitch sounds at low speeds?
Could there be a problem with an unstable clock signal ?
Im using an Pentium 4 2 GHz PC, with 1GB Ram running Windows 7. Kernel speed is 25 KHz (also tried faster..).. no change. The driver test utitly states Excellent or Stable most of the time..
Thanks a lot for any help on this problem!
Im trying to set up my own built Plasma/Router Table with Mach3.
I use 6 Nm Nanotec Steppers with Nanotec SMCI36 controllers. When I run these Motors in 1/4 Step mode directly controlled by the NanoPro configuration software, which is connected to the SMCI36 controller (at RS485), the motors run very silently and equally at 10 RPM.
But when I jog the motors in Mach3 at the same speed, the motor produces noise und seems not to run so equally (but it runs..). At faster speeds, the motor seems to run ok when jogged by Mach3.
Also the max speed of the motor when controlled by Mach 3 is only 650 RPM. When I run the motor with the NanoPro configuration software, a can reach speeds up to 900 RPM without loosing stepps.
Has anyone an idea why this occurs? Is it normal that steppers controlled by Mach3 are noise and make high pitch sounds at low speeds?
Could there be a problem with an unstable clock signal ?
Im using an Pentium 4 2 GHz PC, with 1GB Ram running Windows 7. Kernel speed is 25 KHz (also tried faster..).. no change. The driver test utitly states Excellent or Stable most of the time..
Thanks a lot for any help on this problem!