30-12-2008 21:27

tdlrali

Re: pic: Robot suspension

Novel suspension

One question: Why toughboxes on one side and different transmissions on the other side?

Edit: Dang it, I should've looked at the other picture before posting. Sorry!
"One side we used bain bot gear boxes and on this side we used kit gear boxes. This is just a proto type to see how different gear boxes would work."

30-12-2008 22:20

gorrilla

Re: pic: Robot suspension

Quote:

Originally Posted by tdlrali Novel suspension One question: Why toughboxes on one side and different transmissions on the other side? Edit: Dang it, I should've looked at the other picture before posting. Sorry! "One side we used bain bot gear boxes and on this side we used kit gear boxes. This is just a proto type to see how different gear boxes would work."

30-12-2008 22:23

McGurky

Re: pic: Robot suspension

Yes 2006, we just took those apart the other day to grease them up to use with the new control system!

30-12-2008 22:27

EricVicenti

Re: pic: Robot suspension

I am very impressed with this design. It's a beautiful hybrid of a 6wd and a mechanum, with a very nice suspension.

Which end would you use as the front? The end with the moving wheels would be preferable for weight, but the other side would have an advantage from supporting and control standpoints.

Also, I'm almost afraid to ask, but how much does this weigh in?

31-12-2008 15:14

joeweber

Re: pic: Robot suspension

The weight of the drive unit with the bane bot gear boxes was 30 lbs. The other side we did not check. If we used Andy Mark wheels and did a direct drive to the wheels (no helical gears) and placed some hole in the frame we should be able to get the weight down less than 25 lbs. with a total of 50 lbs for both drive units. The only other frame we would need is for the arm attachment.

More Pictures http://www.team1322.org/ideas.htm

01-01-2009 23:30

joeweber

Re: pic: Robot suspension

Just completed a video

http://www.youtube.com/watch?v=xby0S...e=channel_page

01-01-2009 23:40

GBIT

Re: pic: Robot suspension

How well does it slide from left to right? Does the omni-wheel cause enough drag to not justify the mechanum wheels? Are you even using it as a left to right slide robt or are those just wheels that you had?


Thanks so much

01-01-2009 23:55

s_forbes

Re: pic: Robot suspension

Cool video! That's a very clever drivetrain concept, and I'm glad to see you got it working. It looks like a really fun project, although it may be difficult to implement for a FIRST robot (mostly because of the mechanism and bumper mounting... but I'm sure you guys could think of something ). I'd love to see it used in competition.

Can it go up the ramp fully sideways, or does it start to slip?

02-01-2009 16:50

joeweber

Re: pic: Robot suspension

We have been driving it quit a bit and it goes sideways and angle wise great. If we do use it for competition we would use segmented bumper for each of the moving drives. We originally were going to attach them to the rods that supported the main part of the robot but the stationary bumpers might hit the ramp as it goes up and over.

15-01-2010 14:31

MaiPrettyPwny

Re: pic: Robot suspension

Could you tell me if I'm looking at this right?

It looks like, to me, that the two wheel assemblies are only connected to the central frame in three points. One on either side of the frame near the rear wheels (the white tube, yes?), and the other on the parallelogram in the front.

If this is true, when that parallelogram "flexes," doesn't it pull the two front wheels in towards each other?

15-01-2010 20:32

joeweber

Re: pic: Robot suspension

Quote:

Originally Posted by MaiPrettyPwny Could you tell me if I'm looking at this right? It looks like, to me, that the two wheel assemblies are only connected to the central frame in three points. One on either side of the frame near the rear wheels (the white tube, yes?), and the other on the parallelogram in the front. If this is true, when that parallelogram "flexes," doesn't it pull the two front wheels in towards each other?