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Thread: Made a trammel

  1. #1
    Join Date
    Feb 2012
    Location
    St. Catharines, Ontario, Canada
    Posts
    2,749

    Made a trammel

    We had some 5/8" ply left over from putting up a shed, so the memsahib asked me to cut the largest circles I could get out of them. I figured the easiest way to do this would be with the cheap (29.95) spinsaw I bought at Canadian Tire last year, but the trammel will only do a 12" circle, and I needed 22½".

    So, I got to work, went down to the local HD and bought a narrow aluminum metre stick and a couple of flat head ¼-20 screws and nuts. Then I cut the ruler off at 18½" so I could cut a 36" circle (or 90cm. if necessary)

    Click image for larger version. 

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    Then I drilled a couple of ¼" holes to match the existing trammel, which connect to the base of the spinsaw, countersunk the holes,

    Click image for larger version. 

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    and put the whole thing together, drilled a hole big enough for a #8 screw, and put it into use.

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    It works excellently, is much lighter than my router, and I can use it over and over again. I might look for a ¼" blade, as I broke two 1/8" ones cutting out four disks.
    Cheers,
    Roger


    The other member of Mensa, but not the NRA

    Everyone is a self-made person.

    "The thing about quotes on the internet is that you cannot confirm their veracity" -Abraham Lincoln

  2. #2
    Join Date
    Jun 2008
    Location
    GTA Ontario Canada
    Posts
    12,264
    Neat Roger so whats the circles for Crokinole set?
    cheers

  3. #3
    Join Date
    Feb 2012
    Location
    St. Catharines, Ontario, Canada
    Posts
    2,749
    Nope. Each one is getting three 8" legs, and they will stand in the centre of some of the church's round tables, draped with cloth, and covered with hors d'oeuvres. We are having a reception in December to celebrate my son's wedding in BC in September, as so many people from here couldn't go to BC.
    Cheers,
    Roger


    The other member of Mensa, but not the NRA

    Everyone is a self-made person.

    "The thing about quotes on the internet is that you cannot confirm their veracity" -Abraham Lincoln

  4. #4
    Join Date
    Mar 2007
    Location
    Southeast Pa
    Posts
    2,019
    I like it Roger.

  5. #5
    Join Date
    Jun 2007
    Location
    Oceanside, So. Calif. 5 mi. to the ocean
    Posts
    4,944
    Great idea!

    Enjoy,

    JimB
    First of all you have to be smarter than the machine.
    VOTING MEMBER

  6. #6
    Join Date
    May 2011
    Location
    Cape Cod, Ma.
    Posts
    1,553
    Necessity is certainly the mother of invention! Great idea!!!
    He who laughs last, thinks slowest

  7. #7
    Join Date
    Jul 2009
    Location
    Amherst, New Hampshire
    Posts
    10,606
    Pretty clever solution Roger
    Faith, Hope & Charity

  8. #8
    Join Date
    May 2007
    Location
    Kansas City, Missouri
    Posts
    13,468
    Nice solution Roger!
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

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