pic: Team 665 Ready to Go - Fan Lunacy Teaser

[Greg Peshek]

loading photo ...

[Smoores]

Judging by the '07 control board, you have much more free time than we do.

[Elgin Clock]

FINALLY!!! A robot that is bumper legal!!!

Except that piece of plywood the motors are attached to is sticking out beyond the bumper perimeter. You may want to get that checked out!

[Blackstarr904]

Wow.... ive seen a lot of pretty interesting bots this year... but this is one of the most unique.... i would have never thought of using prop blades as propultion until now.

Good luck

[HalcyonInk]

I've seen a lot of robots that have the basic "refridgerator" look going - box on wheels with ball vomiter. This... this is unique. I hope it works out for you!

[IndySam]

We need to talk about robot safety.









Those weights need to be properly secured, you could break a toe.

[Taylor]

Originally Posted by IndySam

We need to talk about robot safety.









Those weights need to be properly secured, you could break a toe.

With something as awesome as that, who cares about safety!?!

[1jbinder]

How is this going to turn?
Thanks,
Julian

[XXShadowXX]

Originally Posted by IndySam

We need to talk about robot safet
Those weights need to be properly secured, you could break a toe.

or shot your eye out







Yes it's nice to joke about that, but that prop spinning at 3000pm (those are CIM's right), with what looks like at least a 2:1 step up which give you 6000rpm, or 100 rps (revolution per second), and lets say its about a one foot in diameter so it moves at about 100 fps (100 fps= 68.18 mph)
So it should be secured...

[EricH]

Take it easy, guys. They've already posted their protection. http://www.chiefdelphi.com/forums/sh...&highlight=665

Though I think that cake dish may need to be deeper.

[Greg Peshek]

Originally Posted by 1jbinder

How is this going to turn?
Thanks,
Julian

Yeah, this was more or less a joke teaser. You can check out the thread that Eric pointed to, it has the actual design. This was a testing stand to see what kind of thrusts we could get out of various setups. We have a standard 6WD drivetrain and the fan is for extra push.

We actually found that the 1:2 ratio lost enough in the belts to where it wasn't worth it.. so we're going with a 1:1 direct ratio.

The little turning axle running through the Igus pillow block was a testing stand to see what, if any gyroscopic forces would result from turning the prop.

And we're currently working to make sure we meet all the FIRST recommended specs on safety. IE you can't stick a finger in the mesh, and if you can it won't go far enough in to get hit by the blade. We'll do some measurements tomorrow to find out if we need to make a deep dish pizza pan.

I'll post a final picture of the conveyor system/ fan o' doom after build season ends. Let's just say.. it looks decently scary at this point.

-Greg