Mecanum Wheels prototype

Let's Make Robots Robots
1

Hi!

I require your help regarding a problem I’m encountering. I am new with RC cars/robots.

Description:
I am looking to build a basic prototype that is a lightweight 4WD 12" X 12" chassis sitting on mecanum wheels controlled by a remote. The platform is to move in all directions which means each mecanum wheel has a separate motor.

Hardware concerned:
What are the essential parts I need for this project?
Is there a all in one motor controller and receiver that would do the job?

Software concerned:
Is there a pre-programmed controller available to use?

Troubleshooting steps already taken:

Additional information:
The weight, speed, and agility of the prototype are the key features.

Thank you so much in advance for your help!

2

@RomeoRobot Whynot get inspiration from existing mecanum rovers?
https://www.robotshop.com/en/4-wheeled-development-platforms.html

Ex:

If you’re not sure about what’s involved in making a mobile robot:

It’s a series with the links at the top.

As for specifics, this might help, though it’s not made for Mecanum motion which involves a lot more friction when moving side to side.

3

Thank you for your quick reply. I have seen the models you mentioned and there are couple of concerns that your thoughts on them are greatly appreciated.

  1. Speed is a big factor and based on my research on the models you shared, they may not deliver what I am looking for.
  2. Depending on how successful the prototype is, there is a good chance of large quantity production of the complete prototype. Therefore cost will play a big part here.
  3. I am a software engineer and unfortunately lack the experience assembling such delicate project. Any suggestion who might be able to help building this type of prototypes?

Thanks,

4

Speed for mecanum is hard to get, and obviously speed changes in terms of direction (side to side is a low slower than forward and reverse).
In terms of design, prototyping etc., you might try a local university’s engineering department and hire some 4th year students (start with mechanical engineering). Honestly, you can create a prototype mechanical system with:

  • Wood board as the “frame”
  • four gear motors
  • four compatible 90 degree motor mounts
  • set of mecanum wheels
  • four hubs which connect the wheels to the motor shaft
  • two dual motor controllers
  • battery (same voltage as the motor’s nominal voltage, and able to provide enough current)