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Thread: Cheap worm gear assemblies

  1. #1
    mklotz mklotz's Avatar
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    Cheap worm gear assemblies

    Model builders often have need of miniature worm drives. Making one's own can be labor intensive. One alternative is to use the tuning machines for stringed instruments. I paid $6 for six of them...

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

    Disassembling them is easy. Simply unscrew the screw that secures the gear to the shaft and they can be broken down into component parts.

    Cheap worm gear assemblies-worm-drive.jpg

    On the ones I bought, the gear has fourteen teeth so the gear ratio is 14:1. Other tuning machines may have different ratios.
    ---
    Regards, Marv


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  2. The Following 17 Users Say Thank You to mklotz For This Useful Post:

    brianpoundingnails (06-13-2018), CookieCrunch (06-02-2018), DIYer (06-05-2018), Frank S (06-03-2018), Jeff Michel (06-02-2018), Jon (06-02-2018), KustomsbyKent (06-05-2018), Marine2171 (06-02-2018), Metallurg33 (06-03-2018), Moby Duck (06-02-2018), Paul Jones (06-20-2018), rossbotics (06-03-2018), Seedtick (06-02-2018), sossol (06-02-2018), Tonyg (10-17-2018), volodar (06-03-2018), will52100 (06-02-2018)

  3. #2
    bricolage's Avatar
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    What a good idea! One to store away until I need it. Thanks Marv.

  4. #3
    Bony's Avatar
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    Bony's Tools
    Another source is from onld CD & DVD drives, althougj the mechanisms are fabricated from plastic.
    Tony

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    Great idea Marv Thanks.

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    rossbotics rossbotics's Avatar
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    I'll have to remember that one

    Doug
    Comments are always welcome
    Doug

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  7. #6

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    I've looked those things for years & never made the connection. My son's electric guitar in the attic is at risk now!

  8. #7
    mklotz mklotz's Avatar
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    Quote Originally Posted by Metallurg33 View Post
    I've looked those things for years & never made the connection. My son's electric guitar in the attic is at risk now!
    Well, in my opinion, all electric guitars should be at extreme risk. Rock "music" is nothing but loud rhythmic noise; you can't make real music on anything that plugs into the wall.

    Nevertheless, don't pirate the kid's toy. Search on Amazon for "tuning machines" and you'll find plenty of low-priced sets of the little mechanisms.
    ---
    Regards, Marv


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  9. The Following User Says Thank You to mklotz For This Useful Post:

    David Johnson (06-20-2018)

  10. #8

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    The "kid" is now 35. My 9 year old grandson might be a better target for a gift.

  11. #9
    Content Editor DIYer's Avatar
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    Thanks mklotz! We've added your Worm Gear Assembly for Modeling to our Model Making category,
    as well as to your builder page: mklotz's Homemade Tools. Your receipt:




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