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  1. 28-08-2015 #2
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom.
    Clive S
    Last Activity: 13 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has a total post count of 3,342. Received thanks 618 times, giving thanks to others 82 times. Made a monetary donation to the upkeep of the community. Is a beta tester for Machinists Network features.
    Quote Originally Posted by mark84 View Post
    Hi,
    I've been milling MDF, but I noticed my cutter (5mm dia HSS 3 flute up cut) was a tiny bit black at the bottom, and after last time it's SERIOUSLY blackened, I assume this means its damaged, and I've not routed fast enough.
    The profile cut settings were 2.5mm pass depth (9mm depth material), 15000 RPM, feed 3900 mm/min, should I step that feed up to 4000+?
    Any advice would be brilliant. I'm not sure whether to use the cutter again or not too, it's still sharp to touch, it just looks like the bottom 3-4mm of it has spent the night in a chimney!
    Cheers, Mark.
    I would use the cutter and up the federate if the machine can take it.
    ..Clive
    The more you know, The better you know, How little you know
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