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Thread: Wyvern - Featherweight spinner design and build thread

  1. #11
    Roboteer

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    Paul H
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    Pullover (AW) & 1/4 of a Featherweight... (Pushover)
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    500g? Car parts might be a bit too much then, I'm trying to think if any motorcycles will have something smaller you could use... bear with me...

  2. #12
    https://www.bearingsrus.co.uk/transm...itional_tabbed

    This is the sort of thing I have come across at times, just wish it was a little smaller! Sometimes I think a heavyweight would be easier!!!

    Something like this might be hackable also

    https://www.ebay.co.uk/i/16269664388...9035693&crdt=0

    On a related topic, what belt cross sections do people use for FW spinners? I was thinking 10x8mm, could maybe squeeze up to 13x8 but Part of me thinks the pulley radius is too small for that cross section.

  3. #13
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    Paul H
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    Pullover (AW) & 1/4 of a Featherweight... (Pushover)
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    The lawnmower piece looks like it might do the job, would you replace the spring with a threaded bar to make it more... 'manly'?

    Been trawling the parts catalogue too, seem bikes don't use belts, but have you seen the wheel tug/aligner/things?
    https://www.ebay.co.uk/itm/PAIR-of-Y...4AAOSwcUBYUC4R
    perhaps not the most elegant solution, but they can be had (or made) cheaper than those, just a shame that it makes the actual mounting a tad more awkward.

    Just while I'm thinking, single speed bikes have tensioner parts for chain slack, I doubt they'd be tough enough, but if you can make your own beefier ones it might do the trick?

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