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tru circle
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Topic: tru circle (Read 2747 times)
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PCH
80
tru circle
«
on:
March 09, 2012, 01:42:58 PM »
I have calibrated my axis for x & y axis to accuracy. I am not getting a true circle. Checked all components for play.
On a 6" dia. it is out about.060 for one dia. to 90 deg. on the other.
I cannot believe it is my cad/cam end. What can I do to get a true circle.
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RICH
7,427
Re: tru circle
«
Reply #1 on:
March 09, 2012, 04:26:14 PM »
You cutting an oval instead of a circle. That is indicative of poor axis calibration, backlash, or a varying lead of the screw.
RICH
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PCH
80
Re: tru circle
«
Reply #2 on:
March 09, 2012, 05:59:59 PM »
As it turns out my gantry was not square with my x axis.
It was out about 3/16" over 24". After truing it up
voila! Perfect circle. My calibration was spot on as I
use an indicator over 1" of travel on both axis.
Thanks for your response.
I love this forum
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