pic: 1678 Teaser #1
 

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R******* & P***?

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My Guess, The rubber bands are for an anti back-drive mechanism.

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You are missing one of the gears, so you obviously don't plan on using the shifting half. But why do that is the question... :confused:

EDIT: I just noticed that the other gear has been switched to something else as well. I'm going to go with Adam Bochek, an anti back-drive mechanism. Which would be great for hanging... :D

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I'd like to buy a vowel Ken, A. :p

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I'm guessing you're using the dog gears from the super shifters for a ratcheting kicker mechanism? That doesn't look like something I'd want to sit in front of for too long.

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I just have to say that I really love gears, and super shifters have a lot of gears. It looks awesome.

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Ra****** & Pa**.

By the way, I was looking into the exact same thing on McMaster last night.

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[quote=Ken Leung;910669]Ra****** & Pa**.

Is there a "T"? Ken

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[quote=MCahoon;910674]Yes there is.

Rat***t* & Pa**.

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Is there an 'e'?

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Uh huh.

Rat**et* & Pa**. Anyone want to take a guess for 100?

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Can I get a "W"?

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Are those ratchets and pawls from McMaster?

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The McMaster ones run a little pricey. We bought 3 sets of the 3" ratchets and pawls for each. Its about 50 per ratchet and 40 or so per pawl.

Bottom of this page.

http://www.mcmaster.com/#gear-pawls/=5ma9na

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And the ratchets happen to be 3/8" thick, which works out petty well :)

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or for people on budgets you could buy this....

http://www.sears.com/shc/s/p_10153_12605_00942163000P?vName=Gifts&cName=Dad&s Name=All&psid=FROOGLE01&sid=IDx20070921x00003a



cut it in half and hold the handle solid :rolleyes:

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Ding ding ding! And David is the winner!

So, I am guessing you using these for a hanging winch or some sort. But why two? I have absolutely no idea.

Thankfully, they sell a lot of winches that has ratchets built into it, so we don't need to use ratchets and pawls in our gearbox.

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You roll your eyes, but it's been done. :p

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I was rolling my eyes over the idea of spending that much for a ratchet and pawl system that most likely took more work to implement.

And i know its been done, we've done it :p

http://www.chiefdelphi.com/media/photos/28596

its right on the end of that cable winch

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Now why didn't I see this a week ago? Haha oh well, can't get it right all the time, at least it works right?

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i'm just being cheap, you guys got a slick implementation going.
Im still wondering why you need two though....main guess is kicker and winch using the same winch construction

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Guess what I found at Sears on Sunday:

http://www.sears.com/shc/s/p_10153_12605_00942636000P

This guy is going on our robot this year (at least, I hope so).

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Now now, no need to rub it in Ken... :p

And we'd need two 3/8" wrenches, just incase you're feeling generous ;)

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Looks like a winch gearbox for kicker. The ratchet and paw are a nice touch. I used one on our leadscrew lifting arm to stop it from back driving as well.

Overdrive is using a very similar setup. Be careful with the stock shifting block and shaft they tend to destory themselves or explode. :D

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I'll keep an eye on it. We have been kicking for a few weeks with no problems, and we have to use a 2" bore cylinder to pull the dog out :ahh: