Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: dakes55 on May 26, 2017, 12:47:19 PM
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Hi, I am trying to make an indexing plate on my CNC router, i have made them before without out problems, but i have just started to make another one and the circles are not running true, I cant see that i have changed anything so it should be the same as the last one i made which was perfect, the only thing i hace done is to use an airline on the keyboard to blow the swarf out, i was wondering if it might have pressed a key and changed something, the first circle seems ok but the next one is way off centre, tried to upload an image but its not having it.
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Hi,
I'm guessing that the X and Y axes are no longer at exactly the same scale.
Imagine a circle of 100mm radius but where the X component suddenly increased its length by 10%. You would
end up with an oval, 200mm in Y but 220mm in X.
Looking at the circles you've produced can you see an oval shape? If so might direct you to a faulty axis.
While your description doesn't sound like the classic fault....it could be and worth checking.
On the Config/General Config page ensure IJ Mode (approx centre of page) is checked 'incremental'.
Craig
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Picture
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All sorted now, installed service pack 3 on computer and its all working fine again