Wheel chair motors, batteries and wheels

**daliad100** · 27th March 2011, 15:48

Your robot would go three times as fast but have 1/3 the torque and less pushing power

**mattsdragons** · 27th March 2011, 15:55

its hard, i need some more speed out of the motor (probably) yet i also need torque.

what is the best to have more of? torque or speed?

**jonny** · 27th March 2011, 19:22

well if you don't have enough torque you won't be able to move. best to aim for 10mph speed (unless it's a ram bot) and hopefully you'll have the torque to move the robot around

**mattsdragons** · 27th March 2011, 19:28

its a single motord wheel chair from a rascel 205 with diff and top speed at maximum 154kg load of 7 miles per hour running at 12v but ill be running at 18v in the bot

**jonny** · 27th March 2011, 19:30

well if it has a 7mph top speed at 12v giving it 18v will make it go at 1.5 times the speed so you'll get 10.5mph out of it anyway

**blazerbotics** · 27th March 2011, 19:42

how are you going to use the motor/gearbox if its only a single motor?

**mattsdragons** · 27th March 2011, 19:56

its a single motor yet with the diff its able to drive both motors and can turn on the spot, i really dont know how it works but it does

**mattsdragons** · 27th March 2011, 20:16

And now thinking logically I have realised that the motors is completely useless since It only does foward and back!!!!

I got free wheels basically and that's it. I need to somehow find another of the same motor of a rascal 205 and then strip the diff off it to leave me with just the two motors or downswing on the price, I might just go the old bosch 705w route

Where is the best place to buy 750's?