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 Z-axis compensation

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dimaie



Posts : 2
Join date : 2010-10-10

PostSubject: Z-axis compensation   Sun Oct 10, 2010 11:22 am

Hello,

I'm trying to make a PCB with CNC router and Mach3. I am having a problem with the board position which cannot be setup precisely flat in relation to the milling tool in all its points, which means that you can set the value of Z only in 1 point of the board. As a result there will always be an error in moving the tool on Z axis which will increase with the size of the board. I guess there has to be some programmatic mechanism of compensating that error.

The below image shows the problem when the Z offset on one side of the board is not compensated:



Could anyone help me with setting up Mach3 to compensate this error?

Thanks a lot.

Regards,
dmitry
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cncdiy
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Posts : 45
Join date : 2010-01-13

PostSubject: Re: Z-axis compensation   Mon Oct 11, 2010 11:29 am

which model of CNC do you have? Can you show us your control card?

Thank you!
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cncdiy
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Posts : 45
Join date : 2010-01-13

PostSubject: Re: Z-axis compensation   Tue Oct 12, 2010 9:41 am

Please try to connect the machine with the "Earth" of the electrical power system.
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dimaie



Posts : 2
Join date : 2010-10-10

PostSubject: Re: Z-axis compensation   Tue Oct 12, 2010 1:45 pm

Hello,

Thanks a lot for your reply. I'm using the following model of router: CNC 2016 Router / Engraver Machine + E240 D57 Spindle.

I'll connect it to the ground and give it a try, although I'm not sure how this could help.

Thanks again.

Dmitry
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cncdiy
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PostSubject: Re: Z-axis compensation   Sat Oct 16, 2010 11:39 am

Is it working for solving the problems?
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PostSubject: Re: Z-axis compensation   Today at 9:04 am

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