Hot answers tagged motors
16
There are electrical multiplexers as mentioned, however there are also many types of mechanical multiplexers. The idea behind this is to use fever motors to do more.
The advantage is the reduced weight and the disadvantage is the increased complexity and lower flexibility.
For example, you can control both tracks with one motor. However instead of one motor ...
10
What could be considered a safe limit that motors can endure for an
extended period of time?
Their rated voltage.
Motors are designed to operate at their rated voltage indefinitely, or until they wear out, whichever comes first. Exceeding this voltage means you shorten the life of the motor.
Your big enemy is heat. At some point, the amount of ...
9
Mindsensors sells third-party parts that are compatible with the NXT. They sell several motor drivers and multiplexors, for use with NXT motors, RCX motors, hobbyist servo motors, or by sending commands to a PF motor remote control receiver.
HiTechnic is another such company, and they likewise make a device that sends remote control signals for PF and ...
8
5300 and 10153 are from the former 9V train system and drew power from the metal tracks. They were controlled using a transformer attached to the tracks.
88002 runs on battery power from an onboard battery box. Trains with this kind of motor can run at a set speed, or can be controlled by adding IR remote controllers.
Regarding compatibility, the 5300 and ...
8
Unless you do extreme things it should be fine. All the gears insides the Train motors, Power Function motors and the NXT motors are made of Nylon while the pinion attached to
the motor is made of metal.
Image Source
Since Nylon is much stronger than ABS plastic (normal LEGO plastic), the ABS would twist, tear or brake before damaging the nylon gears.
...
7
There are two non-wireless ways that I know of.
One of them, (which is better most likely) is to use this, it's called the Mindsensors Motor Multiplexer (Motor MUX for short) it allows the use of all motor functions and splits one port into several.
Note that each multiplexer requires an additional battery box, making the over all robot less compact, ...
6
The LEGO customer service does provide replacements for defective parts, but only for parts which are still in production. Sometimes you'll need to send the broken part back to them. They don't repair the parts as such, just replace them.
As for the micromotor, you're out of luck as it's not produced anymore. They might provide another motor as a ...
4
In short, yes it's perfectly safe to run your old 9v motors from your Power Functions battery box.
This excellent online reference has a lot of information on various LEGO motors. Both the old 9v train motor and the Power Functions train motor are listed.
The information on the site shows that the characteristics of the two motors are very similar with the ...
4
Here is another video from Sariel which shows that it returns to center: http://www.youtube.com/watch?v=T_Gvuzsngg8
With the 58122c01 Remote Control Unit it returns to center if the remote is not actuated.
With the 64227 IR Speed Remote Control Unit it returns to central position when the stop button is pressed.
3
From the page you linked to we can see that the NXC OnFwd method has the following parameters:
void OnFwd (byte outputs, char pwr)
The power or speed parameter is listed as a char type, and looking around elsewhere on the site we find the definition of the char to be:
In NXC the char type is a signed 8-bit value. This type can store values from ...
3
Everybody else has pretty much said it all, but there is one more thing I can think of
The IR Link Sensor can communicate with Power Functions, RCX, and Trains.
So you can use three NXT motors, plus, say, two Power Functions motors. (Only the NXTs will have rotations sensors, obviously.)
If you already have some PF kit, you will only need the sensor ...
3
Well the power cable is the main difference, as one motor was made for the short-lived 9V RC system while the other is the current PF one.
However, that doesn't mean the internals are the same. From Philo 's motor comparison page, you'll see that the PF motor is better, and that fortunately the performances are much improved [over the RC one], with an ...
3
Turns out the problem is that Servo motors need at least THREE wires. Two for the PWM and one for full power. I made a new connector (and I can attach a picture if anyone is interested . . . just don't have one handy right now) that had all four of the wires from the Lego brick connected to breadboarding pins and then I wired the two new wires to +9 and ...
3
The easiest solution, provided that motor is still in production, is to contact the LEGO customer service (this online form is usually the easiest way, but you can also call them), they'll usually provide a replacement without problem.
2
According to Philo's detailed analysis of the servomotor, it takes its commands from the C lines but needs to be powered as well:
Being a Power Functions range member, it is fully integrated with this system, and receives its commended position through C1/C2 lines, and its power from supply lines. On a normal motor, C1/C2 duty cycle directly control ...
2
You need these old school 5292 puppies ;-) 2 of them.
Check a motor comparison here
You're gonna have to do some after-market mods but those are very powerful , I have them from the 8366 set. But as you can see in the review, there are pro's and con's on every engine.
I suggest reading it in full, it's an amazing source of information and you'll learn a ...
Only top voted, non community-wiki answers of a minimum length are eligible
