pic: FRC973 Testing Bridge Stability

[AdamHeard]

Originally Posted by Nate Laverdure

Adding bumpers probably also made a non-negligible change in your CG position.

It would lower our CG though.

[Nate Laverdure]

Originally Posted by AdamHeard

It would lower our CG though.

Right, just saying. It might even offset the contribution caused by "the top part" (which you just said was on there, but doesn't quite match the other picture).

[jblay]

What kind of tread do you have on your wheels?

694th post

[rcmolloy]

Originally Posted by jblay

What kind of tread do you have on your wheels?

694th post

Wedgetop tread. Not sure the actual source. Adam can back that up though.

Originally Posted by jblay

What kind of tread do you have on your wheels?

694th post

Looks like Wedgetop tread from Andymark

[jblay]

Originally Posted by SuperNerd256

Looks like Wedgetop tread from Andymark

That's what I figured it was but I just don't understand how that is possible without tread that deploys epoxy between itself and the bridge.

Originally Posted by jblay

That's what I figured it was but I just don't understand how that is possible without tread that deploys epoxy between itself and the bridge.

From what I hear, wedgetop tread has more traction on surfaces like hdpe than roughtop or blue nitrile tread. That's the main reason most top teams used it.

Also, I'm not sure if the robot has an active breaking system on it or not. That could help. 256 had software breaks that worked so well we could be at a 45 degree angle and still stay where we were without falling. Of course, these disabled when the robot was turned off.

[MichaelBick]

also, with swerve you can turn your wheels parallel to the axis of rotation of the bridge, so that your wheels don't turn at all.

[AdamHeard]

Originally Posted by MICHAELABICK

also, with swerve you can turn your wheels parallel to the axis of rotation of the bridge, so that your wheels don't turn at all.

Yup.

It's also AndyMark supplied wedgetop.

the robot is missing the bridge mech in this pic, but that's only ~3 lbs and doesn't apreciably affect CG. The shooter as it exists on comp bot is on this in all it's heaviness.

[DampRobot]

Cool, swerve! Does anyone know if there are higher resolution pictures of the modules on CD?

[AdamHeard]

Originally Posted by DampRobot

Cool, swerve! Does anyone know if there are higher resolution pictures of the modules on CD?

The modules are pretty similar to what is posted in the CAD in my sig.

The wheel modules are 99% the same, the corner modules are 80% the same.

[techtiger1]

Adam I have been meaning to ask, who came up with your front intake system? The side to side capability is a ingenious idea. I was wondering if it was a after though that was added on later or in the original design.

[Jared Russell]

Originally Posted by techtiger1

Adam I have been meaning to ask, who came up with your front intake system? The side to side capability is a ingenious idea. I was wondering if it was a after though that was added on later or in the original design.

The first incarnation of that mechanism in FRC that I know of was Chief Delphi VII in 2002.

http://www.chiefdelphi.com/media/photos/22478

It has been very effective this year, utilized by 973, 177, 1477, 2415, and others at various points this season. It was also featured on a couple of 2006 robots, most notably team 27's (they also used the same concept in 2008).