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-   -   pic: Team 125 Drive (http://www.chiefdelphi.com/forums/showthread.php?t=64039)

Brandon Holley 14-02-2008 10:50

Re: pic: Team 125 Drive
 
Quote:

Originally Posted by Jimmy Nichols (Post 698741)
Maybe, maybe not, depends on whether the 1/2" bump is a 1/2" and it isn't 5/8" of 3/4" at a regional.

It will go over it.

With our 6WD, the front wheel makes contact before any other part. Thus putting up on top of the "plateau". The back wheel is also now in contact with the ground. As the robot continues over, the middle wheel hops up, front and back wheels now off the ground. The robot continues forward (center wheel is driving), front wheels back on teh ground, back wheels on the plateau.

Also, the lip has a bit of a "fillet" to it if you will. Tape gives as pseudo ramp up to the height of whatever 1/2" or 3/4" as you claimed.

Tom Bottiglieri 14-02-2008 11:38

Re: pic: Team 125 Drive
 
Quote:

Originally Posted by Jimmy Nichols (Post 698741)
Maybe, maybe not, depends on whether the 1/2" bump is a 1/2" and it isn't 5/8" of 3/4" at a regional.

I still dont think it will be an issue. The bump is going to have carpet on it (or tape or something similarly squish-able), and it wont be in a perfect square orientation (it will look more like a speed bump).

Even if the bot bottoms out it will tip to one side and the wheels still in contact with the ground will push it over.

Think back to 2005. Teams who designed their robot with a low ground clearance so they wouldn't get stuck in goals ended up stuck in them anyway.

Jimmy Nichols 14-02-2008 11:44

Re: pic: Team 125 Drive
 
I'm not concerned about clearance unless the front the bot is what hits first, which clearly its not from Brandon's post. I was only concerned about the bottom dragging and causing any damage.

Cory 14-02-2008 11:48

Re: pic: Team 125 Drive
 
Quote:

Originally Posted by Jimmy Nichols (Post 698741)
Maybe, maybe not, depends on whether the 1/2" bump is a 1/2" and it isn't 5/8" of 3/4" at a regional.

I think they're pretty safe. a 1/2" piece of plate isn't going to gain 1/4" from event to event.

Jimmy Nichols 14-02-2008 12:55

Re: pic: Team 125 Drive
 
Quote:

Originally Posted by Cory (Post 698805)
I think they're pretty safe. a 1/2" piece of plate isn't going to gain 1/4" from event to event.

I'm just trying to be the devil's advocate here. Pittsburgh regional they lay down 4x8 warped plywood on the gym floor under the carpet. Last 2 years we were there, you could have as much as an 1" bump in the floor.


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