Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Robot Showcase (http://www.chiefdelphi.com/forums/forumdisplay.php?f=58)
-   -   pic: 2104 (http://www.chiefdelphi.com/forums/showthread.php?t=53730)

flightofone 08-02-2007 21:54

pic: 2104
 

ZZII 527 08-02-2007 21:55

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!

Alex Cormier 08-02-2007 22:00

Re: pic: 2104
 
wow, great looking tank! who's your belt maker? Also, is that the finished bot?

Gertlex 08-02-2007 22:05

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!

flightofone 08-02-2007 22:08

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.

Greg Marra 08-02-2007 22:12

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.

Alex Cormier 08-02-2007 22:22

Re: pic: 2104
 
Quote:

Originally Posted by Greg Marra (Post 574670)
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! :ahh: indeed, i love to see all diffrent ideas of drives, it's the best.

Lil' Lavery 08-02-2007 22:32

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. :ahh:
Are you going to have any scoring mechanisms or robot raising mechanisms?

Kevin Kolodziej 08-02-2007 23:11

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.

Mullen 08-02-2007 23:47

Re: pic: 2104
 
Quote:

Originally Posted by Kevin Kolodziej (Post 574712)
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.

Scott Morgan 08-02-2007 23:55

Re: pic: 2104
 
How long do your batteries last with that setup?

AdamHeard 09-02-2007 00:25

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?

Cowmankoza 09-02-2007 09:20

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

flightofone 09-02-2007 12:49

Re: pic: 2104
 
Quote:

Originally Posted by Scott Morgan (Post 574744)
How long do your batteries last with that setup?

We don't know - we have about 30 minutes of driving on one battery.

Travis Hoffman 09-02-2007 13:17

Re: pic: 2104
 
Quote:

Originally Posted by Lil' Lavery (Post 574688)
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. :ahh:
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. :D


All times are GMT -5. The time now is 13:21.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi