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Thread: Mechanical Switching

  1. #1

    Mechanical Switching

    New thread for a Mechanically Switched Mono pole.

    Machining from scratch with commutator and brushes.

    Rotor ready for slotting.
    Capture.jpg

  2. #2

  3. #3
    Rotor, shaft and commutator segments assembled.

    IMG_20161126_181144.jpg
    Last edited by Deuis; 11-26-2016 at 01:44 PM.

  4. #4
    Commutator manifold from previous build.
    Using this as a basis for an infinitely variable switch.

    IMG_20130920_170458.jpg
    Last edited by Deuis; 11-26-2016 at 01:44 PM.

  5. #5
    Senior Member Yaro1776's Avatar
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    Deuis,

    Your attachments on posts #3 and #4 cannot be viewed - noted as invalid link - please check...

    Yaro

  6. #6
    Shaft tapped with 3 commutator segments.
    The first two are back to back and will be soldered appropriately.
    The third will be a slip ring for the time being.

    IMG_20161127_102705.jpg

    IMG_20161127_102853.jpg
    Last edited by Deuis; 11-26-2016 at 06:17 PM.

  7. #7
    I'm really glad to see you started this thread. Your work looks amazing. You have me thinking about going to a commutator on my little machine.

  8. #8
    Quote Originally Posted by BobZilla View Post
    I'm really glad to see you started this thread. Your work looks amazing. You have me thinking about going to a commutator on my little machine.
    G'day Bob,

    I've got some great ideas for the brush holders and timing yet to come.
    Just waiting on parts to arrive on a slow boat from china.
    I am concerned about the drag caused by the brushes but i'm hoping the increase of power from the pulses will offset it.
    I'm thinking first up I will only put one magnet in the rotor to prove the flip flop, then add magnets and gearing for the timing.
    I have had these commutators doing over 20,000Rpms without too many dramas.

    https://youtu.be/3J4xB_tn6ZA

  9. #9
    IMG_20161202_172405.jpg

    My new larger Commutators turned up.
    So did my 20mm polyethylene sheet.
    Still waiting on bearings for my blocks.
    Couple of Voldemort's old coils and its starting to look like something.

  10. #10
    Senior Member John_Koorn's Avatar
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    Jul 2012
    Location
    Melbourne, Australia
    Posts
    1,000
    Looking good John

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