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Author Topic: calibration probems  (Read 1925 times)

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Offline cms

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calibration probems
« on: October 06, 2011, 02:06:14 PM »
We are attempting to repeat the same part located on a fixture using a router and Mach 3. It seems that we are getting "creep" in the "0" location with each run of the program. Is this a program problem or  a setting in Mach 3? Can someone please help?

Offline Hood

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Re: calibration probems
« Reply #1 on: October 06, 2011, 03:22:38 PM »
Most likely you are losing steps, try reducing the Accel; and Velocity by half to test.
Hood

Offline cms

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Re: calibration probems
« Reply #2 on: October 13, 2011, 04:48:42 PM »
This helped some, but we are seeing a change in "z" each time we run our program of about .025". Is there something in the code or in the offsetts in Mach 3 that would cause this?

Offline RICH

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Re: calibration probems
« Reply #3 on: October 13, 2011, 05:04:19 PM »
Still sounds like your missing steps, reduce by 50 % again and see how it goes. Make sure he steps per unit are correct. If it's not an accel or velocity problem have a hard look at the z axis for mechanical problems.
RICH

Offline rcaffin

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Re: calibration probems
« Reply #4 on: October 14, 2011, 05:21:37 AM »
but we are seeing a change in "z" each time we run our program of about .025".

Check tightness of collet holding cutter.
Been there ...

Cheers