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Unread 02-08-2007, 08:54 PM
flightofone flightofone is offline
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pic: 2104

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Unread 02-08-2007, 08:55 PM
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Re: pic: 2104

That is a NICE tank drive. Great job and welcome to FIRST!

I see you're from MA, but I didn't see you on the Boston Regional list. What regional are you attending and are you going to the Championship? I'd love to see this in person.

Edit: Found it on the web...next obvious choice was CT. Best of luck, it really looks great!
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Last edited by ZZII 527 : 02-08-2007 at 08:58 PM.
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Unread 02-08-2007, 09:00 PM
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Re: pic: 2104

wow, great looking tank! who's your belt maker? Also, is that the finished bot?
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Unread 02-08-2007, 09:08 PM
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Re: pic: 2104

Haven't really done much testing - we are hoping to be the "Pusher", not the "Pushee". The treads are Brecoflex 4"x80". "Finished" is a relative term. At this point we still have to change sprockets to go faster, improve the chain tensioners, stuff in 4 more motors, mount the ramp, and lose 18 pounds . It was nice to have it driving around the school for the first time today.
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Last edited by flightofone : 02-08-2007 at 09:11 PM.
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Unread 02-08-2007, 09:05 PM
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Re: pic: 2104

Done any testing to see how durable the tread belt is? I'm particularly thinking when your robot is pushed sideways.

Looks pretty schweet!
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Unread 02-08-2007, 09:12 PM
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Re: pic: 2104

8 drive train motors?

This year we're going to see some serious pushing action going on with 100 pound robots and drivetrains as beastly as we've seen.
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Unread 02-08-2007, 09:22 PM
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Re: pic: 2104

Quote:
Originally Posted by Greg Marra View Post
8 drive train motors?

This year we're going to see some serious pushing action going on with 100 pound robots and drivetrains as beastly as we've seen.
i am scared! indeed, i love to see all diffrent ideas of drives, it's the best.
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Unread 02-08-2007, 09:32 PM
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Re: pic: 2104

Why did you opt to put not only 8 motors, but the 8 most powerful motors available, into the drive-train? Yeah, everyone likes powerful drives, but that's next to ridiculous! Especially considering traction is often the bigger advantage than pure power in many pushing matches.
Are you going to have any scoring mechanisms or robot raising mechanisms?
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Unread 02-08-2007, 10:11 PM
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Re: pic: 2104

Nice job guys. One question though - how much of that tread is actually in contact with the carpet?? Do you have an offset center so that only half the track or less is in contact with the carpet at any given time? With 4" treads, be wary of friction while turning. A few years ago, 1064 went with 3" belts and wanted to do 4 tracks that could pivot and "stand up" so it could turn. Didn't work so well though...but I hope you guys have much success.
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Unread 02-08-2007, 10:47 PM
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Re: pic: 2104

Quote:
Originally Posted by Kevin Kolodziej View Post
Nice job guys. One question though - how much of that tread is actually in contact with the carpet?? Do you have an offset center so that only half the track or less is in contact with the carpet at any given time? With 4" treads, be wary of friction while turning. A few years ago, 1064 went with 3" belts and wanted to do 4 tracks that could pivot and "stand up" so it could turn. Didn't work so well though...but I hope you guys have much success.
They have a pneumatic in the front to help turn. My old team, 573, did this in 2003. Except we had about 44in of tread to floor contact. It worked great and turning was never a problem.
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Unread 02-08-2007, 10:55 PM
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Re: pic: 2104

How long do your batteries last with that setup?
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Unread 02-08-2007, 11:25 PM
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Re: pic: 2104

Tanks are impressive from any team.

8 drive motors are impressive for any team.

For a rookie team... that is simply amazing. What regionals are you going to?
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Unread 02-09-2007, 08:20 AM
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Re: pic: 2104

My goodness, 4" belts and an 8 motor drivetrain, you guys obviously wanna make a statement in your rookie year. That is very very impressive for a rookie team, excellent job guys
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Unread 02-09-2007, 11:49 AM
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Re: pic: 2104

Quote:
Originally Posted by Scott Morgan View Post
How long do your batteries last with that setup?
We don't know - we have about 30 minutes of driving on one battery.
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Unread 02-09-2007, 12:17 PM
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Re: pic: 2104

Quote:
Originally Posted by Lil' Lavery View Post
Why did you opt to put not only 8 motors, but the 8 most powerful motors available, into the drive-train? Yeah, everyone likes powerful drives, but that's next to ridiculous! Especially considering traction is often the bigger advantage than pure power in many pushing matches.
Are you going to have any scoring mechanisms or robot raising mechanisms?
I'm thinking they subscribe to the thought that "the best offense is a good defense". They are from New England, after all.
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