Trouble with Z-Zero for PCB making.

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29 Jul 2021 07:51 #216194 by billykid
fixing it to the edges it will always rise in the center, I also tried with the vacuum the one in the center instead pulls it down too much .. the best solution is the milled plate and double-sided tape. I use "eurocel 50 x 25" but it is too strong and boring to remove, they told me that there are types that are less strong on purpose but I have not tried it yet.

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30 Jul 2021 06:43 #216323 by Jocman

 it is too strong and boring to remove
 

Exactly what I mean.... I tried a "chinese" one; not really strong (I can detach it easily enough), but is so sticky.....At the end you waste more time cleaning the adesive debris than milling the PCB......

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01 Aug 2021 14:47 #216608 by andypugh
I think that it would be a good idea to check that the Z adaption actually works.

You could do the probe, then mount a dial indicator in the spindle and jog down to a constant Z and see what the indicator says.

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01 Aug 2021 14:49 #216610 by andypugh

I think that it would be a good idea to check that the Z adaption actually works.

You could do the probe, then mount a dial indicator in the spindle and jog down to a constant Z and see what the indicator says.

Reading back, the adaption is in the G-code as Z moves? Then run the G-code with the spindle turned off and check the dial indicator reading as it runs around the board. 

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02 Aug 2021 06:30 #216667 by Jocman
Uhmmm, ok I'll manage to make the test

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