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  1. #16
    Join Date
    Jan 2012
    Location
    gull lake sask
    Posts
    3

    Default

    I built a drum sander awhile back and it was built out of 5" circle of MDF and they showed the band saw jig and it worked perfect
    Al

  2. #17
    Join Date
    Nov 2010
    Location
    Gippsland Victoria
    Posts
    25

    Default Her is how I would do it

    Here is how I do it to ensure concentric circles with minimum bother

    1. Rough cut the discs on the bandsaw or table saw or whatever you've got

    2. Drill the 1" centre hole for the axle

    3. Make a circle cutting jig for either the bandsaw or the router table or a template for a hand held router - whichever way you go use a 1" dowel as the pin

    4. Use the jig to make the final circle

    5. The 1" centre hole in all discs is guaranteed to be exactly in the centre of the final disc

    6. If you havent got tablesaw bandsaw or router (and it sounds like a drum sander build) you might get away with gluing the rough cut discs to the axle and then using a big sandpaper plate to grind them all into a cylinder without going through the hassle of cutting all the individual discs - But big dust hazard this way - need to do it outside and with very good breathing protection.

    Bill
    Last edited by steamingbill; 1st August 2013 at 06:00 PM. Reason: added sandpaper note

  3. #18
    Join Date
    Aug 2013
    Location
    Perth
    Posts
    1

    Default Cutting a circle in mdf


  4. #19
    Join Date
    Nov 2004
    Location
    Millmerran,QLD
    Age
    74
    Posts
    1,761

    Default

    Thanks for posting that method Age_jay and welcome to the forums.

    Regards
    Paul
    Bushmiller;

    "Power tends to corrupt. Absolute power corrupts, absolutely!"

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