Machsupport Forum

Third party software and hardware support forums. => Third party software and hardware support forums. => Topic started by: hobby4now on March 08, 2007, 10:14:27 PM

Title: Jittery noisy out of control steppers
Post by: hobby4now on March 08, 2007, 10:14:27 PM

I am trying to bench run an FET-4 kit from Stepperworld. I start the the software (Mach-2 or 3) then turn on the power supply to the FET-4 and the motors seem to run erratically even with out an NC file loaded. Aren't they supposed to make a nice smooth hum when they run?

If I cycle the power to the FET-4 sometimes they don't always run. Why are they not quiet and in control?

Thanks,
Rob

Title: Re: Jittery noisy out of control steppers
Post by: DennisCNC on April 08, 2007, 01:17:32 PM

There is probably noise on the step line or the PPort is 3.3volt instead of 5volt.  Are you using a breakout board or direct to the pc port?

Title: Re: Jittery noisy out of control steppers
Post by: hobby4now on May 20, 2007, 02:19:03 PM

Turns out the power supply was bad. I have the steppers mounted to the X-Y table now but can't get MACH-3 to move anything. I can get steppers to move if I use VBSTEPDIR4XP.EXE from Stepperworld.
The OS is windows2000, instead of XP. Will this be a problem?

Thanks