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J-200 B axis clamping rigidity issue

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#1 | Posted: 4 Feb 2015 19:05
Turning with .065 DOC the B-axis is moving .012-.014. I found this out putting a mag base and indicator on top of head while the machine was engaged in the cut. After the cut comes to an end the indicator comes back zero. This deflection creates a real undersize condition and a real messed up turn profile.
The machine is only a couple months old. The cut is interrupted, but the machine sounds good when cutting. I don't know what can be expected, but this does not seem excessive. Any input?
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#2 | Posted: 10 Feb 2015 05:03
i would say mazak repair would be on the way to my shop if that were me. do you hear the b axis lock?
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#3 | Posted: 10 Feb 2015 18:44
The B axis clamp light is on on the CNC signal page. I have heard the clamp come on. The problem has come up intermittently, I get 2 good turns with no movement in the head, then may get 2 with the clamp not holding. We ran about 20 PCs without issue and now seems inconcistant.
Mazak came out and I got it to act up. Now they are checking into some things.
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#4 | Posted: 12 Feb 2015 14:29
bigcountry, do us a favor.

Sell the machine before you get rellay dissaponted.

Trust me.


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