09-02-2008 16:29

dtengineering

Re: pic: Team 383 teaser

I'm thinking it's a big mouse.

Jason

09-02-2008 16:31

T3_1565

Re: pic: Team 383 teaser

ball bot drive system?? I designed something similar, so I hope thats what it is, it would work pretty well in this competition

09-02-2008 18:00

thefro526

Re: pic: Team 383 teaser

ball drive like the technocats second robot in 2003?

09-02-2008 18:21

Vikesrock

Re: pic: Team 383 teaser

I'm thinking it's a giant mouse as well. The wheel is to hold the ball down and the two rollers with the black and white discs will be read by a banner sensor. Should give pretty accurate xy position if it works well.

09-02-2008 21:31

Manoel

Re: pic: Team 383 teaser

Well, those are our wheels, so it can't possibly be a ball drive...

09-02-2008 23:00

EricH

Re: pic: Team 383 teaser

Some form of shooter? Or is it just a trapping device? (I'm leaning towards the former.)

09-02-2008 23:00

T3_1565

Re: pic: Team 383 teaser

well thats dissapointing... lol is it some sort of sensor for..... something..... a make shift gyro or something.... not sure anymore lol

09-02-2008 23:26

tdlrali

Re: pic: Team 383 teaser

Definitely an encoder, I like this setup. How will you do quadrature?

09-02-2008 23:37

Vikesrock

Re: pic: Team 383 teaser

If they want the equivalent of quadrature they could use two banner sensors on each disc.

10-02-2008 03:55

Mr. Freeman

Re: pic: Team 383 teaser

I agree. The black and white discs combined with a lack of mounting point for a motor give it away.

10-02-2008 09:07

Manoel

Re: pic: Team 383 teaser

That's exactly how the CAD folder that holds the assembly is named.

The black and white pattern is so coarse that it will be really easy mounting the sensors such that their electrical output is 90 degrees out of phase.
By the way, this assembly is too tiny to use a Banner sensor (the discs are actually 1" washers) so we'll be using standard photodiodes and phototransistors.