View Single Post
  #35   Spotlight this post!  
Unread 18-01-2005, 15:04
Joe Johnson's Avatar Unsung FIRST Hero
Joe Johnson Joe Johnson is offline
Engineer at Medrobotics
AKA: Dr. Joe
FRC #0088 (TJ2)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 1996
Location: Raynham, MA
Posts: 2,633
Joe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond repute
Re: THE Fisher-Price Motor Spec Sheet

Quote:
Originally Posted by troy_573
I seem to be kind of slow (midterms are over time to get it together). Does any body have the accurate specs of the F-P motor or are they not avalible because theres confusion over what voltage the motor can be ran at?
In my mind, I am convinced that the specs as published are the spec of the motor we have (excepting any mixed lot parts that where shipped by mistake -- but it seems that that is the minority of parts, if any).

The issue of what voltage you can run them at is an open one. The motor can "stand" 12V. If the motor is not loaded too highly, 12V will be just fine. If you load the motor down, you are asking for trouble.

Bottom line for me: Keep V*I Power from becoming m*Cp*(dT/dt) Power and you will keep your motors cool and happy. Run too close to the stall point for too long and the acrid smell of burnt motor windings will fill the air ;-)

Joe J.
__________________
Joseph M. Johnson, Ph.D., P.E.
Mentor
Team #88, TJ2