View Single Post
  #14   Spotlight this post!  
Unread 21-01-2017, 13:30
TylerHarmon's Avatar
TylerHarmon TylerHarmon is offline
Registered User
no team
 
Join Date: Jan 2016
Rookie Year: 2014
Location: Westminster, CO
Posts: 25
TylerHarmon is an unknown quantity at this point
Re: Mecanum Drive control

Quote:
Originally Posted by Ether View Post
Is that what you meant, Tyler? They're more prone to slipping in a pushing match or hard acceleration? But most of the time, if you're careful, they won't slip?

Or did you mean they slip all the time, which completely destroys the value/quality of the ticks that your encoder returns, and therefore how many times a mecanum wheel turns cannot directly be translated into distance?



Hi Ether,

When I say that mecanums slip, what I mean is that the rollers on mecanums do not consistently spin. While you can control how far a mecanum wheel spins, the free-spinning rollers that make up the wheel do not regularly spin.

In both pushing matches and hard acceleration, the rollers on mecanum wheels tend to spin in irregular ways, which essentially results in an inconsistent measure of speed and position.

I think that mecanums can be very useful for strafing and maneuverability, but trying to precisely control their motion can be very difficult if not impossible because of the free-spinning rollers.
Reply With Quote