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Thread: Cutting 2" Foam letters

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  1. 01-10-2008, 05:54 PM #1
    routski
    routski is offline Registered
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    Cutting 2" Foam letters

    We are trying to find the best approach to cutting 2" thick foam on a MultiCam router. We cant seem to get a consistant clean cut without having to stop after each letter to clean the melted foam from the bit. Any insight or ideas?
    Thanks,
    Larry
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  2. 01-10-2008, 06:48 PM #2
    Nono Guest
    increase your ipm. too fast will tear and to slow will melt
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  3. 01-10-2008, 11:22 PM #3
    SCRAPWOTSCRAP
    SCRAPWOTSCRAP is offline Registered
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    Increase feedrate, slow down spindle rpm's.
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  4. 01-10-2008, 11:57 PM #4
    routski
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    Well, after 15 tests, we figured it out.

    1/2 dia 3 Edge Carbide Low Helix Bit, at 140 in/min feed rate, 2 passes (final pass at 1/4"), spindle speed 18,000rpm.
    This works great with a smooth edge.
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