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-   -   pic: Team 610-Teaser Type Thingey (http://www.chiefdelphi.com/forums/showthread.php?t=33765)

n_0163 01-02-2005 13:55

pic: Team 610-Teaser Type Thingey
 

Kyle 01-02-2005 14:02

Re: pic: Team 610-Teaser Type Thingey
 
Those treads work really well, MOE experimented with those last year and they were almost chosen to be one gizMOE but they didn't have the best traction on the upper platform, but they worked great on the carpet.

Alaina 01-02-2005 14:40

Re: pic: Team 610-Teaser Type Thingey
 
6 wheels, eh? I'll have to stop by your pit for a closer look at UC Davis. :D

abeD 01-02-2005 16:35

Re: pic: Team 610-Teaser Type Thingey
 
Looking good...What did you guys use to attatch the treads to the wheels?

Vince lau 01-02-2005 16:42

Re: pic: Team 610-Teaser Type Thingey
 
are those the 8" skyway wheels that came in kit?

The_Goodie 01-02-2005 18:55

Re: pic: Team 610-Teaser Type Thingey
 
Quote:

Originally Posted by Vince lau
are those the 8" skyway wheels that came in kit?

Nope, those are our beautiful 6-inch lathed wheels, and we basically drilled screws through the triangles of the tread, straight into the tire. Will post a video of us lathing the tire off, it's a fun one. :)

The_Goodie 01-02-2005 19:00

Re: pic: Team 610-Teaser Type Thingey
 
Davis eh? we'll be easy to find. Just follow the sounds of Eh? and Aboot :)

Kyle Love 01-02-2005 20:28

Re: pic: Team 610-Teaser Type Thingey
 
Two questions...It looks like to me the treads could possibly come off of the wheel hub, how likely is that versus a regular solid wheel? And, how much more traction do you get from treaded wheels instead of regular wheels?

JVN 02-02-2005 02:30

Re: pic: Team 610-Teaser Type Thingey
 
Quote:

Originally Posted by Kyle45
... how much more traction do you get from treaded wheels instead of regular wheels?

A standard skyway wheelchair caster wheel (like the ones included in the KOP) has a coefficient of friction of about 0.7-0.8.

"Wedgetop" Inclined conveyor belting (As seen above) has a coefficient of about 1.2-1.4. (Or more, depending who you talk to).

So... you're just about doubling your traction by switching to the tread. Not shabby, if you're robot is geared low enough to utilize it.

Note:
If you are interested in "wedgetop" just surf on over to www.mcmaster.com and type in part no: 60155K11

I also like the gum rubber "roughtop" - 5994K811
(What 229 is using this season).


May your wheels never slip, unless you're pushing an immovable object, and may your breakers never exceed 50 amps continuous loading,
John

The_Goodie 02-02-2005 14:13

Re: pic: Team 610-Teaser Type Thingey
 
Quote:

Originally Posted by Kyle45
Two questions...It looks like to me the treads could possibly come off of the wheel hub, how likely is that versus a regular solid wheel? And, how much more traction do you get from treaded wheels instead of regular wheels?

We've actually got the chances of having it fall off pretty low, there's a self-tapping wood/metal screw once every 4-5 diamonds which goes straight into the tread, it's really sturdy. When we put..... basically almost any amount of weight on these things, we can't slip them.


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