8inch Mecs or 10 inch?
 

I wanted hear your opinion on which set of wheels are better, the 8-inch Mecanums or the 10 inch Mecanums. You would think that they would be the same thing but actually the rolles are different. The 8-inch seem to have more friction than on the 10-inch Mecanums. Post your opinions here.

Re: 8inch Mecs or 10 inch?
 

If you are referring to the AndyMark mecanum wheels, you may want to take a look at the weight of the 10" wheels.

7 lbs per wheel for aluminum = 28 lbs in wheels alone!
14 lbs per wheel for steel = 54 lbs in wheels alone!

When compared with the 8" model however:

2.5 lbs per wheel = 10 lbs in wheels

*This is less than 1 steel 10" or 2 aluminum 10" wheels.*


Price is also a HUGE factor:

$710 for a set of 10"
$310 for a set of 8"


Direct from the 8" page:
The friction should be no problem what so ever as the wheels are completely adjustable. Many teams have had great success with the 8" version. I personally see no reason to go all the way up to the 10".

Re: 8inch Mecs or 10 inch?
 

last i checked the 10" mechs were listed at 10lbs a piece. 40lb wheels? well i guess it would lower your CoG.

Re: 8inch Mecs or 10 inch?
 

We considered 10 inchers for about 10 minutes until we saw the weight and cost :rolleyes:
Of course.....there is that coolness factor, because those things just look amazing. I'd go with 8 inch though, much cheaper and lighter. And I don't see how the 10 inch could be THAT much more effective.

Re: 8inch Mecs or 10 inch?
 

If you had truly ridiculous machining capabilities, you could convert bicycle wheels to mecanum. But for actually practical use, I would use the 8 inchers. They are better in most ways.

Re: 8inch Mecs or 10 inch?
 

Could you add an option for "I want mechanum wheels"? I want Mechanum wheels, but my team doesn't! Well, I wouldn't say doesn't they just have more important matters on their mind...

Re: 8inch Mecs or 10 inch?
 

The 10" wheels look like they would run much more smoothly, but are not, I believe, FRC legal.

8.3.3.1 G states:

So at $710, they would exceed the $400 limit.

But they are really cool....

Jason

Re: 8inch Mecs or 10 inch?
 

We're using the 6in mecanums but you don't have them in your pole, when went based on price and the 6 in are getting us over the bump just fine.

Re: 8inch Mecs or 10 inch?
 

However, you can buy each wheel for $180, which is allowed per COTS rule... this would have to be a Q&A question. It is possible to use 2 mecanum wheels to give a "car" like steering system.

Re: 8inch Mecs or 10 inch?
 

Were using 6"