Wheel mount

[huenemeca]

Hello,
I am trying to find a way to mount a wheel so that it is independent. I want it mount 2 front wheels that are not connected, so I can turn them independently. They will be free floating with no motor attached. I am planning on using these wheels http://www.robotshop.com/pololu-1090-wheel-1.html

Can someone point me to a wheel mount that will work for this?

Thanks

[Cbenson]

There are generally a few ways to steer a wheeled robot:

• Skid steering (like a tank; can have 2 / 4 / 6 wheels)
• Rack and pinion (like in a normal car)
• Holonomic Motion (onmiwheels, Mecanum wheels)
• Swerve drive (each motor can rotate and be controlled on its own - usually eight motors required)

Which method are you planning to use?

[huenemeca]

I want to use Rack and pinion. I am trying to figure out a way to make it work. I was thinking of parts like these for the base.

http://www.robotshop.com/tamiya-univ...et-orange.html
http://www.robotshop.com/tamiya-universal-plate.html

But if you have a suggestion I would like to hear it.

[Cbenson]

Rack and pinion basically needs a servo for directional control, and a four-bar mechanism so each motor mount rotates the same (although on a real car the angle is slightly different to compensate for the fact that the turning radius of each wheel is different). We don't have a rack and pinion steering kit, but we have some options as part of other kits such as the Micro Magician and Buggy Car Chassis. Tamiya products are a great place to start for a custom solution.