Atlee 1599 ROBOT VIDEOS!!!

[Electricia 1599]

Check out our videos and give a comment. We will be at VCU's regional for competition. If anyone has any questions just email me or post it up! this years game is going to be interesting. Cant wait to see everyone there!
Alex :D

Variable speed test (http://www.youtube.com/watch?v=OjekMFuYINw)
Ball collector test 1 (http://www.youtube.com/watch?v=Z_IYdlch-CE)

[MOE]

HELLOOoooo from the North East :D
Well it looks like you have a good handle on the pick up (looks great). Hope all the other parts a coming along. May we at TJ2 wish you good luck. We will be in VA for our FIRST time "hope we have a HOOT" with our bot. Maybe we will get together, we have a 10-12Hr bus ride ahead:eek: Till then good luck and seeeee yaaaaa sooooon :yikes:
MOE and Team 88 TJ2 oh yeah ???? OH YEAH !!!! TYE DYE for ever....

[Sean Raia]

Why use ten wheels. IT WILL NOT HELP, it will just add weight.

[Electricia 1599]

Why use ten wheels. IT WILL NOT HELP, it will just add weight.

it does help a lot actually with steering.
Alex

[caffino54]

according to physics, extra wheels won't change anthing becase they will disperse the weight evenly

[dtengineering]

according to physics, extra wheels won't change anthing becase they will disperse the weight evenly

Please note that this is according to your current understanding of physics. The theory that states that surface area is irrelavant when calculating traction is an excellent simplification based on a few reasonable assumptions.

Perhaps the most relevant assumption, in this case, is that the material at the surface contact patch will have sufficient shear strength to handle the forces generated by the friction. Judging from reports of white powder being produced under acelleration, perhaps this is not a reasonable assumption in this situation. Other factors may also be at play... the regolith likely deforms under the normal force of the robot wheels (remember, there is carpet beneath it) and it also fails to present a uniform surface to the wheels. (It is bumpy side up, remember?)

Simplified models merely approximate complex realities. I think I'll believe 1599's empirical evidence over a simplified theoretical prediction!

Jason

[Blackstarr904]

904 is using 10 wheels as well. 4 in front, 4 in the center, and 2 in the back, all joined together with a chain drive system. Every wheel pushes the bot along... and it DOES really help with steering AND traction.

anyways, looks like you guys are getting there. Good luck from team 904 :)

[mrnoble]

We were shocked when, in an early brainstorming session with our engineer mentors, they were very supportive of "the more wheels, the better". We sacrificed weight in other areas (no pneumatics, for instance) to allow for 12 powered wheels. The difference between our 4-wheel test chassis and the real one is significant and noticeable.

[AHS1599]

It's good to hear that others have found the same positive results that we've seen. We ran another round of tests with our ball collector/ejector mounted and are very happy with the results...:)