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pic: 816 as of 1/25/11
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Re: pic: 816 as of 1/25/11
That's a clean looking bot.
What does the underside look like? How do you put the wheels in? :D Also, I don't see any chain tensioning features....care to expand. |
Re: pic: 816 as of 1/25/11
Thanks Anthony!
The underside of the tubes looks like the top, except the slots are two inches longer (6.5" long) to allow the wheels to be put in. The extra two inches of slot on the outer wheels is biased towards the center to maintain enough material at either end of the tube to keep some structure. Right now there aren't any tensioners in place, the axles were placed apart so that we'd use a whole number of chain links (no half-links) so the chains are pretty tight. There are holes to allow delrin idlers to be bolted into the tubes to help tension the chain a bit, but we won't know if we need them until the chain stretches. |
Re: pic: 816 as of 1/25/11
Probably a question with an obvious answer, but is the tower side the front or back?
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Re: pic: 816 as of 1/25/11
We use a cam bolt for tensioning in our boxed frame system.....works pretty good. It is especially well suited for these applications because you have axle support on both sides.
A fixed center distance will do the trick too. |
Re: pic: 816 as of 1/25/11
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Re: pic: 816 as of 1/25/11
Wow Dustin! I am loving the direction you guys are taking this year. This robot looks so clean and robust. What are you planning for the gripper? Pincher or roller?
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Re: pic: 816 as of 1/25/11
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I'm currently working on finishing up the CAD of our Claw. It's pretty much a standard Polycord Roller Claw, nothing ground breaking, but it should serve our purposes well. If all goes well, it should be done Monday or Tuesday of next week, but with all this snow that may slip a bit. |
Re: pic: 816 as of 1/25/11
Saw this on facebook a few days ago and gotta say that this is gonna look real nice at NJ and Philly. Hopefully over the next two weeks, I'll be over to see it in action man.
By the way Dustin, that "thing" got you to the Finals in NJ last year. Just an fyi haha. |
Re: pic: 816 as of 1/25/11
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Our sponsored team, FRC3098 The Kettering Captains, will be using our setup this season....so I'm really looking forward to see how the cam bolts hold up during competition. Agreed that you could always go to a tensioned system if you start to see excessive sprocket wear. |
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Re: pic: 816 as of 1/25/11
Looks very good guys! Just wondering, are you guys using a minibot? If you are, how will you deploy it?
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