Faster motors?

#1

Does anyone have any idea where I can find faster motors for use with the small tank? It is very hard to find brushed dc motors with extra long 4mm shafts that are long enough. Just wondering if anyone else had any luck finding motors with a higher rpm.

#2

Hi there, have u tried change the code to run the motors at 250 speed ?

The examples uses a conservative max value of 150, but with baseShieldMotorDriver.runMotors(250,250); it goes fast

Anyway I agree that a 250/300 rpm motor would be great (of course with less torque that the current one http://www.makeblock.cc/dc-motor-25-6v-185rpm/)

Something like

But with a longer shaft

Regards

#3

I do use the max pwm duty (255) but still want something with a higher rpm. I tried looking at pololu and they have some options but nothing seems perfect.

Robotshop has a few other motors.
http://www.robotshop.com/gear-motors.html

There are also a number 4mm shaft coupling adapters that might be an option but would require custom motor mounts.
http://www.robotshop.com/actobotics-set-screw-shaft-coupler-14-4mm.html?utm_source=google&utm_medium=base&utm_campaign=jos

#4