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View Full Version : Tetrix Motor w/o Gearhead

Mark McLeod
08-02-2011, 18:22
Comsewogue Team 1751 wanted to see just how fast a Tetrix motor could spin a 4" wheel without the gearhead.
With enough speed the Tetrix tread expands like a rubber band and comes right off the wheel.

http://www.youtube.com/watch?v=WQzJmVD64MI
Nick Lawrence
08-02-2011, 18:25
Comsewogue Team 1751 wanted to see just how fast a Tetrix motor could spin a 4" wheel without the gearhead.
With enough speed the Tetrix tread expands like a rubber band and comes right off the wheel.

http://www.youtube.com/watch?v=WQzJmVD64MI

That was dangerously funny. How long did it spin at top speed for before throwing the tread?

-Nick
EthanMiller
08-02-2011, 18:33
And... I just got weird looks from family for laughing as hard as I did. Note to self - GEARS!
kgzak
08-02-2011, 18:56
If only there was enough torque to propel a robot up the tower at than speed :yikes:
joek
08-02-2011, 19:33
gear it down just a little....
Cyberphil
08-02-2011, 22:15
Wow. I just got the same look from my family!
vamfun
09-02-2011, 02:27
Hmmm, now you are getting close to our design, but you have to have the magic tread:)
Mark McLeod
09-02-2011, 10:09
That was dangerously funny. How long did it spin at top speed for before throwing the tread?
Just a second.
I used my Blackberry to record it and started it before power was applied. I guess it was a little slow to record.

It was weird to watch the tread expand and float away from the wheel...

All speed and little torque.
IKE
09-02-2011, 10:24
It was weird to watch the tread expand and float away from the wheel...

All speed and little torque.

Similar to the phenomonon that dragster tires go through during their burnouts.
This is also why many land speed cars stop using rubber tires above a certain speed.