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General Mach Discussion / Re: Rogue step pulses when system idle
« on: March 31, 2012, 08:37:59 PM »
Hi Keith, Sounds like you may have similar problem to me, well did have.
Am building a large plotter cutter 6 M by 2 M and I had the nudges and also the creeps. I spent days and tried different ideas and re-running my control wires etc away from power lines in my electrical cabinet. Sometimes after re-applying my cable ties (trying to keep everything tidy) different steppers would move and sometimes quite violently. The X axis would scream and travel about a Meter and the the Y axis would follow.
I'm using CNC C10 breakout board and I would only have to lightly touch the enable wire and the motors would go crazy. Me included !!
I changed my Gecko drivers around and still had problem.
Tried capacitors as mentioned by Tweakie and others in previous posts.
However I purchase a small power screw driver as I was sick of changing wires and using a long handled driver in the cabinet and then used it to go over all the screws to a set torque.
YOU guessed it. some of the stepper wires torqued up a bit more and problem gone completely.
I had tested the wiring on all circuits by connecting up all the components on a bench and had no problems at all. And when I first attached the wires in the cabinet I would screw them in one at a time and then try to tug them out. Not good enough I found.
As Tweakie's postings and Winston Churchill said "Success consists of going from failure to failure with loss of enthusiasm"
I would add also, loss of hair, loss of sleepless nights, loss of time, reading and searching the Forum's thousands of posts. Must admit searching has helped me also.
I'm still having trouble with my second parallel PCI card working.
Hope this helps and Good luck Keith
ET
Am building a large plotter cutter 6 M by 2 M and I had the nudges and also the creeps. I spent days and tried different ideas and re-running my control wires etc away from power lines in my electrical cabinet. Sometimes after re-applying my cable ties (trying to keep everything tidy) different steppers would move and sometimes quite violently. The X axis would scream and travel about a Meter and the the Y axis would follow.
I'm using CNC C10 breakout board and I would only have to lightly touch the enable wire and the motors would go crazy. Me included !!
I changed my Gecko drivers around and still had problem.
Tried capacitors as mentioned by Tweakie and others in previous posts.
However I purchase a small power screw driver as I was sick of changing wires and using a long handled driver in the cabinet and then used it to go over all the screws to a set torque.
YOU guessed it. some of the stepper wires torqued up a bit more and problem gone completely.
I had tested the wiring on all circuits by connecting up all the components on a bench and had no problems at all. And when I first attached the wires in the cabinet I would screw them in one at a time and then try to tug them out. Not good enough I found.
As Tweakie's postings and Winston Churchill said "Success consists of going from failure to failure with loss of enthusiasm"
I would add also, loss of hair, loss of sleepless nights, loss of time, reading and searching the Forum's thousands of posts. Must admit searching has helped me also.
I'm still having trouble with my second parallel PCI card working.
Hope this helps and Good luck Keith
ET