Never before seen: a 10L single lever tumbler gear BEFORE being destroyed by use
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  1. #1
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    Default Never before seen: a 10L single lever tumbler gear BEFORE being destroyed by use

    Hey guys-

    I finally got around to learning how to cut a gear (had to buy a mill and tool up first!) and proudly decided upon the Achilles heal of a Heavy 10 single lever gearbox.

    Untitled by Tim Marks, on Flickr


    Untitled by Tim Marks, on Flickr

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    Nicely done. Now it looks like you have to buy a shaper. At least 'tooling up' will be straightforward.

    Chip

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    Quote Originally Posted by Chip Chester View Post
    Nicely done. Now it looks like you have to buy a shaper. At least 'tooling up' will be straightforward.

    Chip
    No shaper for me! I'll broach out the key way.

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    Hah. Nice one. I am on a similar journey myself. I'll get there soon...ish. The single tumbler gear box will likely get some gear love at some stage too. :-)

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    What material did you use for the new gear?

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    Quote Originally Posted by HuskerScott View Post
    What material did you use for the new gear?
    I just used 1018 to prove I could do it. I don't really know what a good material would be for this gear or others.

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    What pitch is that gear? Im too lazy to stick my head under mine and do the measuring

    Sent from my SAMSUNG-SM-G900A using Tapatalk

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    14 DP x 14.5 PA

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    Can I purchase one of those?

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    Quote Originally Posted by WLD_Bill View Post
    Can I purchase one of those?
    Sounds like there could be a market for these.

    What you can do is take a piece of material maybe 6" long and do the teeth.

    Then slice it off, face both sides to thickness, and broach the keyway in each.

    Steve

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    Quote Originally Posted by SteveM View Post
    Sounds like there could be a market for these.
    What you can do is take a piece of material maybe 6" long and do the teeth.
    Then slice it off, face both sides to thickness, and broach the keyway in each.
    Steve
    Loki's nutsack tied with twine! That sounds a lot like work. Have you ever been responsible for deburring the entire periphery of a full set of teeth? It sucks, and it sucks a lot. If you treasure your sanity as much as your time, undercut the blanks to a depth just below the Root diameter before you cut the tooth space. Then come back and part or saw as needed, afterwards. There will still be burrs, but nothing like the ones created by parting or turning upon already formed teeth.

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