04-03-2009 11:25

MrForbes

Re: pic: Team 125 Presents: CROSSFIRE

Do I spy a little custom made FP transmission?

Nice robot! video soon?

04-03-2009 11:29

Lil' Lavery

Re: pic: Team 125 Presents: CROSSFIRE

What are those rollers made of?

04-03-2009 11:32

camtunkpa

Re: pic: Team 125 Presents: CROSSFIRE

Looks good 125 good luck in Boston!

04-03-2009 11:36

Brandon Holley

Re: pic: Team 125 Presents: CROSSFIRE

Yes you do spy a custom little FP tranny. It is essentially just the first 2 reductions in the KOP FP gearbox with some tweaks to provide durability of the gears as well as adapt a 2nd FP motor. The output is ~1000 rpm. This drives the elevator system.

I'll work on getting a solid video tonight.

The rollers are 2" sched 40 PVC with solid PVC inserts in the ends. The inserts each have a needle bearing pressed into them. There is then sched 80 PVC "rings" slid and glued on over the sched 40. The entire roller was then coated with spray on plasti-dip.

Keep the questions coming.

-Brando

04-03-2009 11:39

andrew348

Re: pic: Team 125 Presents: CROSSFIRE

This is so similar to an idea a few of our team members had and prototyped with Knex. After they built it, they were talking about making a few small changes, which would have made them virtually similar.



Also, is there going to be a hopper on your robot, it looks like it?

04-03-2009 11:42

Brandon Holley

Re: pic: Team 125 Presents: CROSSFIRE

That KNEX prototype is very similar.

There is polycarb that surrounds the 4 black uprights you see. The robot is very difficult to work on with those there so what you see here is the hopper sans polycarb. With the polycarb on there it brings our capacity to 28 balls.

-Brando

04-03-2009 14:28

JVN

Re: pic: Team 125 Presents: CROSSFIRE

Looks alright, I guess.

04-03-2009 15:54

Adam Freeman

Re: pic: Team 125 Presents: CROSSFIRE

Looks very similar to 254/968's 2006 robot.

I like it

04-03-2009 19:19

Akash Rastogi

Re: pic: Team 125 Presents: CROSSFIRE

Sick bot Brandon. I was really waiting for this, turned out great! Good luck this weekend. Somebody tagged this with 1251 as well. Interesting....

04-03-2009 19:20

AdamHeard

Re: pic: Team 125 Presents: CROSSFIRE

why only 4wd?

04-03-2009 21:05

kborer22

Re: pic: Team 125 Presents: CROSSFIRE

we did some testing with our old drive train that was retrofitted with rover wheels. We determined that we needed to shorten the wheelbase to accommodate trailing the goal