1678's Roughly 1 Second Minibot

[Michael Corsetto]

http://www.youtube.com/watch?v=jXa5uoQ2YwA

Somewhere between 1 and 1.1 second deploy + climb.

Credit goes to 1868 and 254 for the minibot help and inspiration. The hands-on experience at Davis helped

Credit goes to 233/190/1114/whoever else for the ramp inspiration. I swear we won't just bring a piece of steel (bent around a vacuum cleaner) to St. Louis.

See you all at the World Championship!

-Mike

[biancs15]

thats unreal.

I love the ramp use.
Great design and execution

[Thermal]

Originally Posted by biancs15

thats unreal.

I love the ramp use.
Great design and execution

So the ramp is legal because the minibot is the one powering itself up the ramp?

[Akash Rastogi]

Loving the constant improvement from your team Mike. Great stuff.


Best of luck in St. Louis!

[RMS11]

Thats awesome! We are in the process of building one also and this makes me even more excited!

[JesseK]

The real difficulties with this design (there were 3 of them at DC -- 233, 190, and 1089 I think) were reliability of keeping the minibot "stuck" to the ramp while the match goes on. If it isn't in its initial spot every time, the results may vary match-to-match -- and I promise you that there is plenty of contact is some of the games this year.

233 seemed to do it the best; if you have issues in St. Louis, perhaps give them a holler.

[Jimmy the Kidd]

I was going around school, talking with my fellow team members about this after lunch, and the best way I could describe it was "it's like a Hot Wheels ramp, but with a LOOOOOT more power."

[R1ffSurf3r]

Originally Posted by Jimmy the Kidd

I was going around school, talking with my fellow team members about this after lunch, and the best way I could describe it was "it's like a Hot Wheels ramp, but with a LOOOOOT more power."

http://www.topgear.com/uk/car-news/r...500-2011-04-14

Try that on for size

[J_Miles]

Excellent work, guys. I think people will be seeing a LOT of ramp-style deployments and minibots at the Championship, thanks to teams like 233 and 190. It will all come down to consistency of deployment, I'm sure.

[Mark Sheridan]

Wow, that is fast. Can't wait to see it in person.

[sanddrag]

I recall there was another thread where Ether and some other folks had started a discussion on energy and deployment methods such as this. I don't recall what (if any) determination was made. The minibot still must accelerate itself vertically the same distance, hence, providing the same positive change in potential energy, therefore requiring the same amount of work to be done no? Was there some sort of mathematical reason it ends up being faster deploying with a ramp? Or is the minibot propelled horizontally by the hostbot to give it momentum before it makes a transition to the inclined portion of the ramp?

Edit: dumb questions, I wasn't thinking, see below.

[114Klutz]

Originally Posted by sanddrag

I recall there was another thread where Ether and some other folks had started a discussion on energy and deployment methods such as this. I don't recall what (if any) determination was made. The minibot still must accelerate itself vertically the same distance, hence, providing the same positive change in potential energy, therefore requiring the same amount of work to be done no? Was there some sort of mathematical reason it ends up being faster deploying with a ramp? Or is the minibot propelled horizontally by the hostbot to give it momentum before it makes a transition to the inclined portion of the ramp?

Because it isn't fighting gravity for the first portion of its climb, it'll accelerate faster.

This will more quickly put it into its optimal speed, where power output is maximized.

[sanddrag]

Originally Posted by 114Klutz

Because it isn't fighting gravity for the first portion of its climb, it'll accelerate faster.

This will more quickly put it into its optimal speed, where power output is maximized.

Correct. I hadn't put much thought into it. It's operating at a much better point on the motor curve when it starts out. Anyhow, nice results.