8" Non-Pneumatic Wheels

[matthewdenny]

Originally Posted by EricDrost

Agreed!

http://www.robotmarketplace.com/products/BPDWC22.html

Would be my choice. Pneumatic will likely be better, but in a pinch, I'd go with Colsons.

Any suggestions on how we could go about mounting the pulleys onto those wheels?

[Knufire]

Originally Posted by matthewdenny

Any suggestions on how we could go about mounting the pulleys onto those wheels?

Dead axle hub: http://www.vexrobotics.com/colsonhubs-g.html

[Sh1ine]

Originally Posted by Knufire

Dead axle hub: http://www.vexrobotics.com/colsonhubs-g.html

Yeah, you get this hub, and press it into the Colson with an arbor press. They work great. We are not using Colsons this year, but they are a much better option over the kit wheels you have linked, they are pretty much indestructible, but they are heavy.

Good luck!

[GeeTwo]

Originally Posted by de_

Have you checked whether the larger 8" wheels will collide with the front and back "C" frames ? If so, is it possible to notch the frame to accommodate the extra 1" wheel radius ? Else you have to move the axles and then the belts don't fit.... Or extend the frame

Also keep in mind when going from 6 to 8 inch and not changing any gear or belt pulley ratios, the robot will go slightly less than 8/6 times faster. Though your driver does has a "throttle", it might be somewhat harder to control the robot in close in maneuvering. And the robot will have 8/6 less torque (in a pushing match).

There is a separate pair of axle holes for 8" wheels already in the inner and outer plates. You will need to get shorter belts, as specified in the KoP documentation.