09-02-2010 20:27

JesseK

Re: pic: 1918 Quad Drive Device

Very impressive! Definitely adding to the favorites.

09-02-2010 20:57

GGCO

Re: pic: 1918 Quad Drive Device

It looks like 1918 has created another mechanical masterpiece!

Congratulations from rookie team 3357 - The COMETS (Creating Outstanding Minds, Embracing Technology and Science).

Can't wait to see you at Traverse City!

09-02-2010 22:25

O'Sancheski

Re: pic: 1918 Quad Drive Device

i like it... especially the chain mechanism to draw the surgical tubing back... good luck this year

10-02-2010 07:49

GaryVoshol

Re: pic: 1918 Quad Drive Device

Cool. You better make it to Ypsi, because I wanna see this thing.

15-02-2010 00:13

LWakefield

Re: pic: 1918 Quad Drive Device

Here are some videos:
http://www.youtube.com/watch?v=Fcq-dfd0jNs

http://www.youtube.com/watch?v=YGTwp...eature=related

http://www.youtube.com/watch?v=OoYIx...eature=related

Most of these are from a few weeks ago.

15-02-2010 01:04

waialua359

Re: pic: 1918 Quad Drive Device

Easier to continually "possess" the ball as your robot moves around the ball, instead of only spinning it around a pivoting robot, generally speaking.

Well done!

15-02-2010 13:06

nnfuller

Re: pic: 1918 Quad Drive Device

Would you mind explaining what you are using for a roller?

15-02-2010 13:49

the man

Re: pic: 1918 Quad Drive Device

What kind or motor are you using for the ball control, and dose the pool noodle spin fast or slow?

15-02-2010 20:45

Wayne TenBrink

Re: pic: 1918 Quad Drive Device

The green tube is a pool noodle. The spindle is a 3/4" aluminum tube powered by an FP motor thru an AM planetary gearbox and an AM Nano. It spins maybe 300 rpm without a ball in it. We discovered by accident that the noodle slips on the spindle when holding a ball. It keeps enough force on the ball to hold it and let us back up or turn, but doesn't stall out the motor when we get a good pinch between the roller, ball, and floor.

23-02-2010 21:59

Tyler Hicks

Re: pic: 1918 Quad Drive Device

http://www.youtube.com/watch?v=YIweS...layer_embedded
Robot in action

23-02-2010 22:37

Enigma's puzzle

Re: pic: 1918 Quad Drive Device

Looks like another quick NC gears robot, and you guys seemed to build another great bot. It seems like we were always chasing you guys around last year, maybe this year we will get a chance to work with you instead.

Good luck, and i cannot wait to see the "Quad drive" in action.

23-02-2010 22:40

hyperdude

Re: pic: 1918 Quad Drive Device

It looks like your ball magnet (practically the entire front of the robot, it seems -- nearly 3 feet wide) would be capable of holding two (or more) balls. What are you guys doing to prevent this? Or are you just going to fire off the balls quick enough?

24-02-2010 11:50

Wayne TenBrink

Re: pic: 1918 Quad Drive Device

We are aware of this risk. There's room for 4 balls, actually.

If we come up on multiple balls, we plan to either kick fast or reverse the direction of the roller. We don't expect the floor to be littered with balls like last year, and we think that a wide roller/kicker will make it much easier to acquire a ball in the heat of battle. We don't need to be lined up on it - just in the general neighborhood.