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  1. #1
    Noticed when cutting small tables, the edges (even with a new bit) are very furry.

    I know a compression bit is the answer but they are expensive and upper cut spirals have worked in the past.

    Is it the quality of the mdf? It seems, the lighter colour it is, the better it cuts (or is that just a coincidence?)

    Stuff from Builders yards, Wickes, B & Q seems to waver wildly in quality. Where do you get decent stuff at good prices?

    Click image for larger version. 

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  2. #2
    Ger21's Avatar
    Lives in Detroit, United States. Last Activity: 7 Hours Ago Has been a member for 7-8 years. Has a total post count of 643. Received thanks 90 times, giving thanks to others 0 times. Referred 1 members to the community.
    Yes, lighter color generally indicates higher quality, often known as super-refined MDF.

    I generally use downcuts.
    Gerry
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  3. #3
    a straight flute generally works ok for me certainly better than that

  4. #4
    Quote Originally Posted by charlieuk View Post
    a straight flute generally works ok for me certainly better than that
    Does it plunge well? Know of any good prices on straight flutes?

  5. #5
    Quote Originally Posted by Straker View Post
    Does it plunge well? Know of any good prices on straight flutes?
    here; https://www.toolstation.com/shop/Pow...traight/p67412

    You should use a spiral lead-in because they are not designed to plunge straight down, I use them all the time.
    Last edited by EddyCurrent; 17-11-2017 at 11:31 PM.
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted

  6. #6
    Quote Originally Posted by EddyCurrent View Post
    here; https://www.toolstation.com/shop/Pow...traight/p67412

    You should use a spiral lead-in because they are not designed to plunge straight down, I use them all the time.
    Thanks, but isn't that a router bit? I'm talking CNC btw.

  7. Quote Originally Posted by charlieuk View Post
    a straight flute generally works ok for me certainly better than that
    Solid carbide up-cut double flutes spiral router bits are also a good choice for MDF cutting. Two large grooves can easily remove chips and keep bits in balance during rotation. They are also high temperature resistant, and tungsten solid carbide can guarantee a long use life.

  8. #8
    If you get it in small quantities, there is a material called Valchromat which is vastly superior to MDF, and it machines beautifully. It is also coloured and great for furniture building. I'm in the process of using it to make a clock case now.

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