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  1. #31

    Re: Cart Fabrication Questions

    Quote Originally Posted by Glenn View Post
    If I can dig up the article I will scan it for you. If I recall, it was a decent design and would allow you to hook and unhook it from the bike using the air compression coupler.
    That would be great!

    Cebby,

    Here's some pics of my duck hunting kayak I built the trailer for.

    The pup in front of the Marshrat



    My helper.



    I made a quick set of guides to keep the Marshrat from moving.



    I put to original links back on to get some more measurements at sprung weight.



    A view from the front.


    I'm playing around with the suspension geometry on ExcelCAD v2.1 - Multi-link Suspension Design program I found on Offroad Fabrication Network.

    Right now I have an anti-squat of 147%, a roll axis slope of 0.31, and a roll axis angle of 17.21deg. This is probably the best I can do since my frame is flat. I'd have to make an inverted hoop that hangs off the bottom of the frame to get the links parallel.

    My shed construction took priority today since it stopped raining, so I haven't made the new links yet.

    Erich

  2. #32
    Registered User Glenn's Avatar
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    Re: Cart Fabrication Questions

    OK, here is a scan of the article. (It was in a 1984 issue!) Hope it is clear enough and I hope it helps. My cousin built this little cart as seen in the article. If I recall correctly, it all worked pretty well.

    (I did not have permission to copy this article, however it is copyright Popular Mechanics.)
    Glenn H. Shelton III
    My Garage Pics

  3. #33

    Re: Cart Fabrication Questions

    That's pretty cool! I'll have to give the hitch system a try. Especially since the materials are all listed.

    Thanks for digging up your copy and scanning it

    Erich

  4. #34
    Registered User Glenn's Avatar
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    Re: Cart Fabrication Questions

    My pleasure.
    Glenn H. Shelton III
    My Garage Pics

  5. #35

    Re: Cart Fabrication Questions

    Here's a bunch of updated pics.

    I still haven't towed it behind my bike becuase it still has some bugs to be worked out, but I've walked with it 3 or 4 times this year.









    I've decided I'm moving away from the triangulated 4-link as it has too many parts and doesn't match my needs for this project.

    I'm working on Phase III right now

    Erich

  6. #36
    Contributing Member MXtras's Avatar
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    Re: Cart Fabrication Questions

    Very interesting. Keep us posted as you proceed!

    Scott
    If it wasn't for the last minute I wouldn't get anything done

  7. #37

    Re: Cart Fabrication Questions

    Update: My poorly constructed swing arm attachment points failed at the end of the 2009 season so I didn't even use it for 2010, but I have a design borrowed from the off-road trailer crew. I'm going to weld on some tabs and use a trailing arm design. I have all the components, just need the weather to warm up.

    Erich

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