08-07-2006 14:30

Alex Cormier

Re: pic: Vexanum 2.0

excellent work as always amos. I expect to see atleast 30 of them at ruckus for sale.

08-07-2006 14:32

Tytus Gerrish

Re: pic: Vexanum 2.0

WOOH! props tp you man. mad props. waht ate the rolers made of?

08-07-2006 15:07

miketwalker

Re: pic: Vexanum 2.0

Wow! Awesome design... excellent work.

08-07-2006 19:57

Dan Petrovic

Re: pic: Vexanum 2.0

WOW!

That's incredible! I want to do that now!

08-07-2006 19:58

techtiger1

Re: pic: Vexanum 2.0

I agree with Mike Walker as usual. This wheel Alex is amazing I love it. Leave it to FIRST people to come out with a Mecanum wheel for VEX before VEX does . Nice work Alex keep it up man very cool.

-Drew

08-07-2006 22:04

Alex Cormier

Re: pic: Vexanum 2.0

if your speaking to me, i had nothing to do with it. The man is Amos from 229, the brilliant driver of this 06 season.

10-07-2006 22:26

Chuck Glick

Re: pic: Vexanum 2.0

i was thinking of making the designs for some of those this summer with inventor, and then... print them out on our totally awesome 3D printer we just got this year... so if anyone say already has some designs for them made, i might be able to print um up for you depending if teachers will allow me to.

10-07-2006 22:32

Gabe

Re: pic: Vexanum 2.0

Question: are the rollers on a machanum wheels supposed to be set at 45 degrees or can they be set at different angles?
All machanum wheels I have seen have the rollers set at 45 degrees and the Vexanum 2.0 wheels look like they are set at a different angle. Perhaps someone could clarify this for me.

10-07-2006 22:45

Madison

Re: pic: Vexanum 2.0

They can be set at any angle, strictly speaking, but the 45* offset is the most efficient choice for lateral translation. You could similarly optimize the roller angle of each well to facilitate, say, translation at 30* from forward if you chose.

11-07-2006 18:45

greencactus3

Re: pic: Vexanum 2.0

going "forwards" with 45* mecanums, you'll go at about 50%, 90*, or omnis will get you 100%, and 30* will be less forward movement than 45*, and 60 will get you more than 45.
oh and the 50% is not correct if i remember a thread from looong ago

13-07-2006 15:01

Tytus Gerrish

Re: pic: Vexanum 2.0

i read a pdf i found on Google a long time ago about actively adjustable roller angle mecanumwheels. it was basically like a collective pitch actuator inside the hub of the wheel that let you change the angle of the rollers from 45* to 0*. mostly for efficiency in forward motion and also some Redneck gear reduction while moving sideways. much like the rotor blades of a helicopter or an airplane propeller with adjustable pitch

14-07-2006 23:04

amos229

Re: pic: Vexanum 2.0

Sorry about the lack of reply. The roller are 3/8 id gas tubing from autozone with a sheet of brass foil from Joann fabrics on the inside to act as bushings. i am not sure about the angle of the wheels. Due to the stock vex plate design It was hard getting a consistent angle so its whatever angle it happens to be. While this is the only finished one currently those of you going to Ruckus off season comp will get to view them in action on my vex bot. Thankyou for the support.

29-07-2006 23:12

colin340

Re: pic: Vexanum 2.0

will you really be selling these at ruckus if so pm me

04-10-2006 22:49

Po-ser

Re: pic: Vexanum 2.0

Wow. Wow.

... WOW.

I will pay you an arm, a leg, and the souls of two other people for one of those bad boys. (Or instructions on how to make one )

Wow.

05-10-2006 00:17

yongkimleng

Re: pic: Vexanum 2.0

Does this look like a usual holed metal sheet cut up to shape, ends twisted to 30/45 degs, and AM's rollers attached between them?

05-10-2006 13:59

Alan Anderson

Re: pic: Vexanum 2.0

It looks like it, yes. But the rollers are sections of automotive fuel line tubing with foil "bushings".

06-10-2006 01:00

yongkimleng

Re: pic: Vexanum 2.0

wow that sure makes it 100% original! haha.. I wonder how the rollers get the freedom to turn with foil between it and the axle (which i assume are bolts and nuts)? Pre-Lubrication required to move?