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#1
 
03-25-2010, 06:29 AM
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Hello all! I have a custom built CNC machine and I was cutting a thin piece of material only cutting .010" I noticed that part way through my program the cuts were getting deeper. Well after a long process of elimination i measured the z axis, ran the program with the router turned off and no tool in the collet. When the program was finished and the machine returned to home, the z axis was of by .300" I check a couple times and the distance was consistent. I am using Mach3 and This is really driving me crazy can anyone point me in the right direction?  |
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#2
03-25-2010, 07:02 AM
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| This happened to me a few weeks ago. My problem ended up being a loose encoder wire ate the motor. Another possibility is a loose encoder, able to rotate freely on the shaft (when it feels like it  )If you have steppers, this does not apply. Cheers! ' Rob |
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#3
03-25-2010, 07:10 AM
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| i do have stepper motors i probably should have mentioned that. I am going to try to recalibrate the z axis and see if that helps |
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#4
03-26-2010, 07:55 AM
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I was calibrating my machine and I think I found the problem. A small set screw on the stepper motor connecting shaft. Thanks to everyone for the help, hopefully this will fix the problem. |
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