I have the following motor: GP307 Ultra Dash Motor by Tamiya.

I've read online that you can give this motor up to 16 volts. I have been putting in 11 volts and it spins very slowly, maybe about 200-300 rpm.

I don't know much about how motors work, so I ask you, what would make one of these little motors spin very slowly?

  • \$\begingroup\$ The website you linked to says it can only handle 2.4-3.0 V \$\endgroup\$ – Chris Laplante Oct 24 '12 at 20:55
  • \$\begingroup\$ ok, but would that cause it to spin slow and why? \$\endgroup\$ – Steve Oct 24 '12 at 21:16
  • \$\begingroup\$ I don't know. Where did you find that it can handle 16 volts? \$\endgroup\$ – Chris Laplante Oct 24 '12 at 21:18
  • \$\begingroup\$ some nerf gun modding sites. \$\endgroup\$ – Steve Oct 24 '12 at 21:20
  • 2
    \$\begingroup\$ Did the motor spin faster the very first time you applied 11 volts but now spins much slower? \$\endgroup\$ – Jason Oct 25 '12 at 1:32

Looks like the motor is rated for 2.4V to 3V if you are applying 16V you could have cooked something inside since you are at least 5 times rated voltage.

  • 1
    \$\begingroup\$ Probably the motor had many independent coils and one (or some) of them was able to withstand the high voltage; these survivors are bravely trying to spin the motor. \$\endgroup\$ – fceconel Oct 25 '12 at 15:02

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.