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Thread: Feed Rate, Plunge Rate, RPM

  1. #1
    Join Date
    Feb 2015
    Union, NJ

    Default Feed Rate, Plunge Rate, RPM

    Hello I have PVC material and am trying to cut out letters. I have a onsrud 1/8" upspirle. Im only using this to cut the insides of "a" and clean up small ariaes where the 1/4" wont fit. Please advise as to Feed Rate, Plunge Rate, and RPMs, I am useing aspire if that make any difference. Thank you.

  2. #2
    Join Date
    Apr 2011
    New Jersey


    75-100ipm. 20-30ipm plunge. DOC = .125-.25. RPM ~ 13,000 RPM (two flute). 13-18,000 on an "O" Flute.

    I've found slower, with more aggressive depths work best. Varying RPM hasn't made a significant difference on cut quality but you want to bump the RPM on an "O" flute bit. If bumping the RPM causes issues, then slow down the machine a bit.

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