Micro Mill - mill cutting deeper at the end of a job

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Benny
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Micro Mill - mill cutting deeper at the end of a job

Post by Benny » Fri 15 May , 2009 14:15 pm

Customer writes in ....

school is have a problem with the mill cutting deeper at the end of a job.
Attached is a progam that they have created. It seems to run ok in simulation but he says when the mill finishes it cut of the boarder that it keeps cutting deeper as it goes along. And is much deeper at the end than at the beginning.

What could be causing this.
attached is fnc

Benny
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Micro Mill - mill cutting deeper at the end of a job

Post by Benny » Fri 15 May , 2009 14:17 pm

see attached
Attachments
Denford.zip
see attached
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Post by Denford Admin » Mon 18 May , 2009 16:47 pm

What material are they cutting ?
After this has happened, will the tool touch back onto Z0 at the top of the billet, or does it go into the billet ?

It could be the tool being pulled out of the spindle, or the Z axis losing position for some reason.

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