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How?

Nick Lawrence

By: Nick Lawrence
New: 02-04-2009 22:02
Updated: 02-04-2009 22:02
Views: 1483 times


How?

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03-04-2009 08:39

daltore


Unread Re: pic: How?

Well that's fun. I'm guessing something got jammed between the spokes while the motors were at full rev? That takes talent, my friends.



03-04-2009 09:13

Uberbots


Unread Re: pic: How?

how? observe the following formula:

rim = not moving + hub = moving = no more hub on wheel



03-04-2009 09:47

artdutra04


Unread Re: pic: How?

I'm calling shenanigans.



03-04-2009 09:47

JesseK


Unread Re: pic: How?

The spokes look too sharp for it to be a spinning motor. It looks like someone took a hammer to the hub of the wheel, perhaps to get a hub out that was stuck? That would be likely if someone threaded #10 bolts into the holes, which would make it hard to unbolt (heh, we have experience with this one) ... so plan B was a hammer.



03-04-2009 11:11

James1902


Unread Re: pic: How?

hmmm...that looks familiar...



03-04-2009 11:22

smurfgirl


Unread Re: pic: How?

Oh my...



03-04-2009 13:00

Peter Matteson


Unread Re: pic: How?

I haven't done since 2005.
We had too much weight on the rear of the robot and if it slammed down hard after placing a tetra the skyway wheels could shatter near the hub.

It was the last year we used kit wheels or 6" wheels until this year...



03-04-2009 13:20

Caio


Unread Re: pic: How?

gnomes stole it



03-04-2009 14:55

Schnabel


Unread Re: pic: How?

By any chance did a robot slam into the side of your robot where this wheel was located, such as at practice while bumpers were missing?



03-04-2009 14:55

NorviewsVeteran


Unread Re: pic: How?

Quote:
Originally Posted by Caio View Post
gnomes stole it
GAAA!! why won't they leave me alone?!



04-04-2009 03:47

Caio


Unread Re: pic: How?

Quote:
Originally Posted by NorviewsVeteran View Post
GAAA!! why won't they leave me alone?!
Because they need wheel hubs. They're building...

A 100 WHEEL DRIVE



04-04-2009 07:18

Zach O


Unread Re: pic: How?

Hahaha, that's cool intresting breaks in the wheel. Was it spinning when it broke?



04-04-2009 08:10

Ken Streeter


Unread Re: pic: How?

We had the pictured failure happen to us at least three times during competition in 2007 with the kit wheels. If I recall correctly, we thought the problem was mostly getting pushed sideways by defending robots. We didn't have serious troubles until the off-season tournaments, when a combination of more aggressive defense and the accumulation of lots of matches took its toll. The A/M wheels were strengthened for 2008. We didn't have any failures in 2008, but the game didn't involve as much defense, either.



04-04-2009 16:27

EricH


Unread Re: pic: How?

Quote:
Originally Posted by Ken Streeter View Post
We had the pictured failure happen to us at least three times during competition in 2007 with the kit wheels. If I recall correctly, we thought the problem was mostly getting pushed sideways by defending robots. We didn't have serious troubles until the off-season tournaments, when a combination of more aggressive defense and the accumulation of lots of matches took its toll. The A/M wheels were strengthened for 2008. We didn't have any failures in 2008, but the game didn't involve as much defense, either.
469 and 330 reported the same, 469 on a crab and 330 on a 6WD drop center. The suspicion was that it was side loads. And yes, the wheels were strengthened after 2007.



04-04-2009 18:21

Nick Lawrence


Unread Re: pic: How?

Perhaps this is a late April Fools joke.

At GTR last weekend, we made the move to switch from our 4 wheel rear wheel drive, to 4 wheel skid steer drive. The way our drivetrain is designed, it relies on the "center" wheel's central hub. We didn't have the time nor parts to make an appropriate spacer, so we just cut it apart on a bandsaw.

We have two of these.

-Nick



04-04-2009 18:58

artdutra04


Unread Re: pic: How?

Quote:
Originally Posted by artdutra04 View Post
I'm calling shenanigans.
Quote:
Originally Posted by Nick Lawrence View Post
Perhaps this is a late April Fools joke.

At GTR last weekend, we made the move to switch from our 4 wheel rear wheel drive, to 4 wheel skid steer drive. The way our drivetrain is designed, it relies on the "center" wheel's central hub. We didn't have the time nor parts to make an appropriate spacer, so we just cut it apart on a bandsaw.

We have two of these.

-Nick
So shenanigans it is!

It was pretty obvious the spokes were cut on a band/hack saw and not the result of the typical failures seen on prior AM/Skyway wheels. The hand covering a significant portion of the outer tread reinforced that.



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