1 Second Minibot - Rampless.
 

https://www.facebook.com/video/video...13147&comments

Edit: if you can't view it, use this link.

http://static.ak.fbcdn.net/rsrc.php/...586213147&ev=0

This footage was taken with a high speed camera at 600fps. It's been slowed down to 60fps.

2984 will be on Archimedes. Deployment is sub 100ms.

Re: 1s no ramp minibot - team 2984.
 

Wicked fast, should make for some good competition. Just wondering, does it always fall off after hitting the top?

Re: 1s no ramp minibot - team 2984.
 

It tends to do that on the practice pole. On the real pole, the top pushes inwards a bit, and pushes the thing back down. It's less likely to fall off.

But we need to do testing on that.

Re: 1s no ramp minibot - team 2984.
 

I would love to see the deployment system if you would like to share. Sub 100ms is very impressive for deployment.

Re: 1 Second Minibot - Rampless.
 

Would you mind posting a few specs?

- weight

- wheel(shaft) diameter

- normal force

- did you measure the rolling friction?

- etc

Re: 1s no ramp minibot - team 2984.
 

Any chance it would be able to make a second run if no-one had been there to catch it? I have seen several videos of super fast bots that fly off the pole once they hit the top. unless these bots are tougher than they look, I forsee dead bots all over the field, with none left by elims....

Re: 1s no ramp minibot - team 2984.
 

This bot could be faster. It's meant to survive falls, and it's actually built quite heavier than it should be. It also, on an actual pole with a sprung top plate, will stay on the pole while falling downwards. The bottom of the minibot has two collapsing cylinders that act as shot absorbers for that.

Plus, we have 4 minibots, and enough C-frame to make at least 10 more at competition.

Drag was estimated, and we binary searched the shaft diameter after doing a bit of math to narrow it down to the correct spot. I'm not sure we're entirely at the optimal point.

The deployment system is two stage - predeployment pops out a tray on a turret that automatically aligns and pushes against the base. The second stage is merely a sled on rails containing the minibot, its powered by surgical tubing. It is very fast.

You can probably find a closeup in one of our matches at regionalwebcast.com during the Vegas regional.

Edit: heres an image.



deployed: