|
|
 | | adding power inlet to technic control center
|
| Before I blindly go in and screw something up because of lack of electronics knowledge, has anybody already tackled this feat? I assume its very easy with a couple of diodes (maybe too easy) to isolate the batteries from the dc input, but I have (...) (22 years ago, 9-Jan-03, to lugnet.robotics, lugnet.technic)
| | | | | Re: MOC: All Terrain Crane
|
| Hi, thanks Anrea! And your english isn't perfect, but I get the gist! ROSCO (...) (22 years ago, 8-Jan-03, to lugnet.modelteam, lugnet.technic)
| | | | | Re: MOC: All Terrain Crane
|
| (...) Thanks Jen! Am I allowed to say "nyak, nyak" now??? 8?) (...) Well in this case, I just hung around taking photos from outside the barriers, and Andy saw me and invited me up! I've had not so pleasant experiences asking other crane drivers (...) (22 years ago, 8-Jan-03, to lugnet.modelteam, lugnet.technic)
| | | | | 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 (...) (22 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
| | | | | Re: 8475 Motor Tests
|
| Hi Thomas, Interesting informations ! I added a link to this thread in my motor comparison page... Philo www.philohome.com (22 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 (...) (22 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 (22 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
| | | | | 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 (...) (22 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
| | | | | Re: 8475 Motor Tests
|
| (...) Yes, I did too. Judging from the performance of the RC car, you'd think the motors would be equivalent to perhaps 8, or more, of the geared 9V motors. The buggy can really zip along! There was one other thing about my test. When the 9252 motor (...) (22 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
| | | | | Re: 8475 Motor Tests
|
| This is interesting information, thanks TJ. I must say that I got the visual impression that the buggy motors seemed to have more than a mere 2 - 3 times more shaft power output than the gear motors. The little piece of data which would add greatly (...) (22 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
|
|
