To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.technicOpen lugnet.technic in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Technic / 8822
  Re: 8475 Motor Tests
 
That figure was the normal operation (no load) figure. What concerned me was that it was a factor of almost 20 higher than the gear motors which normally run about 10mA. Of course, it is very easy to overlook the fact that the gear motor is (...) (21 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
 
  Re: 8475 Motor Tests
 
(...) Well, check this out: (URL) are a few pictures of the internals of the motor. Quite a few gears! (...) Thanks! TJ (21 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
 
  Re: 8475 Motor Tests
 
Ok, here is an extrapolated result for the short circuit (stalled) test. The current at 9 volts would be 3.6 amps. Since I did not wish to burn up the motor, I checked current readings at both 3 and 6 volts and also measured the DC resistance and (...) (21 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
 
  Re: 8475 Motor Tests
 
(...) Holy C......... That's quite high (understatement) for a little LEGO motor. Do you think it's possible that the train controller I used in my test didn't produce enough juice? If that's the case, then the motor has a higher maximum stall (...) (21 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR