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Unread 22-01-2007, 00:34
Jonathan Norris Jonathan Norris is offline
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Re: Chain Tensioning Method?
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Originally Posted by Jonathan Norris View Post
I just did the tensioning system on our robot today, and a simple solution that we are using is basically a small piece of delrin (low friction plastic) pushing down on the chain with two screws tapped into the delrin (yes it actually works..). Then the screws are attached through a part of the frame directly above the chain. Seems to work well so far, going to play with it tomorrow more.
Ok so I got time to take some pics of what I was talking about before. As you can see the delrin block pushes down on the chain. All I need to do to tension the chain more is grab a drill .

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Unread 19-01-2007, 23:18
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Re: Chain Tensioning Method?
Don't use chain?

That seems to be a pretty good tensioning method to me. We aren't going to have a single link of chain on our robot this year.

You could also look at what 254/968 did last year for chain tensioning. I can't exactly describe it, but it tensioned the chain when someone tighted some device. Maybe someone from either one of those teams can clear that up for us.
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Unread 22-01-2007, 00:47
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Re: Chain Tensioning Method?





tensionerrrrrrrrrrrrrrrssss let me know if you have any questions
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Unread 22-01-2007, 00:51
John Gutmann John Gutmann is offline
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Re: Chain Tensioning Method?
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Originally Posted by David Sherman View Post
I'm designing the drivetrain for this year's bot and we need a way to tension chains. Last year we used floating idlers from mc master and those were a mess. I'm looking at an automatic tensioning system, such as something spring loaded. Any suggestions, tips, or advice?
Do you have a rigid mount on your motors/ wheels? if not then put slotted holes, and just push the plates and viola!
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Unread 22-01-2007, 21:43
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Re: Chain Tensioning Method?
The last couple of years, we've designed it so we can move the entire motor/gearbox assembly up or down a tad so as to tension the chains. Of course, that is with 2 or 4 wheel drive, not 6. One time, we just cut grooves in some old polyurethane skateboard wheels and used them as tensioners. Price was right...
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Unread 26-01-2007, 00:39
David Sherman David Sherman is offline
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Re: Chain Tensioning Method?
As of right now its not going to be very possible to slot the chassis. These are all really great ideas everyone, thanks so much.
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