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Thread: Better finish

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  1. 05-03-2012 #6
    Jonathan's Avatar
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    Quote Originally Posted by luke11cnc View Post
    Yes Jonathan there is several line on each part.
    so if I slow the feed rate down and plunge rate down even farther it may give me a better finish.

    how low should I go, can you give me a starting point please
    This does sound increasingly like the Z-axis is loosing position. Are you sure pulleys or something else on the Z-axis has not worked loose?
    Although changing the plunge rate could solve the problem it's not advisable as the Z-axis is still capable of stalling. If it's too high an acceleration causing the problem then lowing the feed-rate could make no difference. You should go to Config->Motor tuning->Z-axis and reduce the speed and acceleration. I can't say exact values as I do not remember what they are currently set to, so try halving them and see what happens.
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