Endmill to cut Gears out of Plywood

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Thread: Endmill to cut Gears out of Plywood

  1. #1
    Member kolias's Avatar
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    Default Endmill to cut Gears out of Plywood

    Making a clock and so have quite a few gears to cut all out of 1/2" thick plywood. I made my toolpath in my CAM and all is good to go but the problem is the endmill.

    Since the teeth are very close together (8”OD gear with 64 teeth) I must use a 1/16” endmill but the cutting end of these endmills is less than 1/2" so I will not be able to cut through the 1/2" plywood.

    Any ideas how to go about it?

    Nicolas


  2. #2
    Flies Fast Superman's Avatar
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    Default Re: Endmill to cut Gears out of Plywood

    Just another way to look at making them
    .... turn blanks, include a timing hole with the centre hole. Have gear area stepped in (say 1/8" each side, tooth is 1/4" wide)
    .... place onto a jig to machine the teeth profile
    .... alter root of tooth to allow largest possible cutter, even to drilling the radius before cutting tooth form.



  3. #3
    Member CitizenOfDreams's Avatar
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    Default Re: Endmill to cut Gears out of Plywood

    1.5mm x 15mm endmills are not something unusual. You can buy them cheap on eBay/AliExpress.

    Also, as Superman suggested, you could "tweak" the root of the tooth profile to accomodate a slightly larger endmill.



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    Community Moderator difalkner's Avatar
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    Default Re: Endmill to cut Gears out of Plywood

    I had the same challenges for some gears I cut on the CNC and used a 1/4" compression bit to rough the shape followed by a 1/8" bit for the finish cut (1/2" BB material). They came out great.
    Endmill to cut Gears out of Plywood-013-2-sets-enigma-cipher-gears-dowels

    David
    Romans 3:23
    CurlyWoodShop - www.etsy.com/shop/CurlyWoodShop
    David Falkner - www.youtube.com/user/difalkner
    difalkner - www.instagram.com/difalkner


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Endmill to cut Gears out of Plywood

Endmill to cut Gears out of Plywood