Wobble Plate engine

Discussion in 'Finished Projects' started by hdwrench1, Dec 22, 2012.

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  1. Dec 22, 2012 #1

    hdwrench1

    hdwrench1

    hdwrench1

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    My completed Wobble Plate engine.
    I did the flywheel in steel but I'm not happy with it so I'll do an aluminum flywheel next week.
    Runs nicely on 10 PSI of air.
    When I get some time I'll do a video of it running

    Cheers
    Wayne

    wobbleplate1.jpg

    wobbleplate2.jpg
     
    Last edited: Dec 22, 2012
    larry1 and rabdouglas like this.
  2. Dec 23, 2012 #2

    AussieJimG

    AussieJimG

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    What an interesting engine! I don't recall seeing that design before. And it looks good too.

    Jim
     
  3. Dec 23, 2012 #3

    Tin Falcon

    Tin Falcon

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    Jim; that is one of elmers designs available on the Joh-tom Site. but it looks like he added a few embellishments.
    Tin
     
  4. Dec 23, 2012 #4

    hdwrench1

    hdwrench1

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    Thats correct Tin Falcon,
    Its an Elmer design however I increase the cylinder dimension to add fins to it and drilled the base so I can bolt it up to a larger base to prevent wobble when running. I'll do a heavier base this coming week. Also the inlet pipe has ribs on it to keep the air hose from slipping off.
    I'll do an aluminum knurled flywheel this week for easier starting.
    I'll also do a groove in the flywheel for an o-ring as I have a small electric motor and I want to experiment with getting 12 volt DC voltage output using pulleys to run some LED's

    The most challenging part was getting the wobble plate just right. Took some fiddling.

    Cheers
    Wayne
     
  5. Dec 23, 2012 #5

    jason4420

    jason4420

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    Very nice job. Hope mine turns out half as nice .
     
  6. Dec 23, 2012 #6

    hdwrench1

    hdwrench1

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    I'm sure it will Jason.
    Take your time

    A couple of hints, line bore the cylinder with a fixed size reamer before pressing on the cylinder cap.
    Take your time with the wobble plate. I used a super small square when the round stock was still in the 3 jaw chuck to make sure I had the specified wobble. Take a .001 cut each time then measure. This was time consuming but I got it dead on. Also the silver soldering was tricky with a piece this small but it worked out well

    Good luck
    Looking forward to seeing yours
    Cheers
    Wayne
     
  7. Dec 27, 2012 #7

    hdwrench1

    hdwrench1

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  8. Jan 1, 2013 #8

    lensman57

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    Hi,

    The most important parts of this engine are
    1- the wobble plate
    2- the valve, this needs to be free to move but as air tight as possible to prevent the air pressure loss. Better off machining the diameter quite tight to the bore and then loosen it by lapping froward and back.

    Good luck.

    A.G
     
  9. Jan 1, 2013 #9

    lensman57

    lensman57

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    Hi,

    Great looking engine, well done.

    A.G
     
  10. Jan 1, 2013 #10

    dreeves

    dreeves

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    Lensman57, Your build got me on the path to the wobble plate:D. I got several parts done and will post some pictures soon. Thanks for sharing your engine

    DAve
     
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  11. Jan 2, 2013 #11

    Gerry Sweetland

    Gerry Sweetland

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    Your build looks and runs nice.
    I would like to build that engine too someday.
    Gerry
     

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