Rover Speed

Lynxmotion Rovers, Sumo, and Tracked
1

I bought the Rover for use in a Community Theatre production. I’ve mounted a 3ft plastic penquin to it. It comes out on stage during the play. The tracks work well as it has to go up a carpet and I only want it to travel in a straight line. So far so good.

The problem is that the stage is about twice as deep as I anticipated, and it takes too long, to travel the distance. It current;ly takes 20 seconds, and I need it to do it in 10 seconds. I’m currently running 4 AA batteries. If I go to 8 AA (12v) would it run twice as fast, or would the Arduino melt down? I only need 15 secs of operation total, so I don’t think overheating would be an issue if there is an adequate voltage regulator on board.

So my question comes down to this, is there a way to double the rover speed, that I have time to implement before opening night in 10 days?

Thanks,

2

  1. A higher voltage battery pack (ex 7.4V LoPo) will cause the motors to rotate at a higher RPM; however, the motors included with the Tamiya Twin Motor Gearbox are 3V nominal, so you should ideally replace them with 6V nominal:
    robotshop.com/en/brushed-dc- … RB-Pol-202

  2. Change the gear ratio of the Tamiya Twin Motro Gearbox ; however, the tracks will become too tight, so you need to use different sprockets and wheels throughout. We don’t have a suggested configuration for this as it was never designed to use the lower gear ratio.