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Messages - vortxx

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General Mach Discussion / Re: Missing Steps - Mach3 - Taig Mill
« on: September 11, 2006, 08:18:40 PM »
Hi Chad,
My system specs are as follows..

Intel P3, 498MHz, 256 MB RAM
XP Pro SP2

I installed WinXP in Standard PC Mode as suggested in the optimization file, but I have not yet completed optimizing the operating system. (Just a few of the obvious things).

Mach3 is the only installed app on this system.

I am using steppers, not servos.. (no encoders)..
There are no markings or labels so I can't tell much about the steppers. They are 4 wires and are driven by a StepMasterNC 4-Axis LE controller. I will include a picture of the stepper motor. The Z axis motor is about twice the size of the one in the picture. X,Y and A are as pictured.

I have not lost steps when jogging the machine, only when running code. I can hear it losing steps when I dry run so I know its not a load or torque issue (at least not created by engaging material). I overide the feed rate down to 8 IPM (from 10) and it seems to happen less frequently but it still happens.

I am running a simultanious 3 axis toolpath.

Do you think my problem is processor speed? If your pretty sure thats what it is, I have another machine I could switch to. I am using the other machine for CAD/CAM and would rather not dedicate it to Mach if I can avoid it.

Thanks for helping  :)

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General Mach Discussion / Missing Steps - Mach3 - Taig Mill
« on: September 10, 2006, 09:54:29 PM »
Hello everyone, I have been reading this message board for awhile and using the info to troubleshoot and tweak my setup. I am up and running with all 4 axis; the problem is, I am still missing steps now and then and I can't figure out why. I am wondering if my processor speed is to blame?

My port is testing at 4.98 volts on all the pins I am using. (or zero volts when inactive).

I have my accel and velocity set at what I believe to be a very modest rate.. I have also set my step and dir pulse to 5 (see attached screen shot).

Something strange I should mention.. The step and dir pulse settings seem to reduce by 1 each time I open and then close the motor tuning dialog.

Should I try using Mach2 instead of Mach3?

any suggestions would be much appreciated!



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