LEGO Power Functions M-Motor Set LEGO 8883 2 - 4 Years Interlocking Block Building Sets 0.5 lbs

After having my Emerald Night for about a year now, I wanted to make a MOC steam locomotive. The 8882 XL-motor has more than plenty power for trains, but it's a bit bulky and requires a rather large loco body to be built into. The XL-motor can pull a train for about 3 hours on a fully charged 8878 rechargable battery box. I bought a brand new 8883 M-motor and mounted it in a wheel and gear setup similar to the Emerald Night. It runs great for almost 2 hours pulling 2 coaches, but the motor gets very warm. After cooling for about 15 minutes the motor is ready again. If used with RC , changing direction and stops will give you about 5 hours of running power on a fully charged 8878. NOT BAD AT ALL !! Reading the other reviews of this motor, I'm prepared that I might actually wear this motor out, and change it after a while, but so far, after running trains for more than 20 hours on this motor, no problems yet. Plenty power for it's size, and fantastic for trains and other power functions. The size of this motor makes it perfect for fitting into (smaller) trains.

I got this with other power functions AND a golden minifigure keychain. It's very good. P.S. You MUST have a battery box (e.g. #8881).

A well motor that fits perfectly in small systems, allowing steering, pulley lifting and turntable turning. It is a great motor, I say again. I'm totally not complaining of its mediocre power as it is used for small tasks. Note that the motor's purpose is not to drive heavy trucks & cars and mechanical arm lifting. It is used mainly on beams that has studs on them. However, I would recommend the motor to have more holes on it's sides to enable fitting it on normal Technic beams. It is recommended for consumers to purchase the (9670 E-Motor) from Lego EDUCATION to fully understand the M-Motor's true potential of driving dreams of mechanisms.

I got this motor as part of my Container Truck, and my play experience was amazing. However, I now want to use it to power a precise mechanism using a connector cable attached to the Nxt. Unfortunately, since the motor doesn't have a rotation sensor, it might not work. Does anyone know how precise this motor is attached to an Nxt?

This set is great for making things that do not have power function functional. For example l made Lego set # 42020 functional by getting a battery box and l made the propeller spin.

First off, if you wish to just get a lot of power and torque out of your motor, this isn't the one for you. However. If you wish to apply a smaller, more precise motor to your creation, then this is it. And here's why. The XL motor is good for a lot of applications, but regarding steering, and/or gearboxes, it does no good, since the torque is so powerful, it will surely rip your model appart. I applied this motor to my 4 speed manual gearbox, and it worked so well, I had to keep it. It was not as powerful as the XL, but it did not rip the car appart, and, in 2nd 3rd and 4th gear the car can still pick up a lot of speed. On a final note, it is extremely easy to apply and to mount to your model, due to it's size, and at the same time it won't add as much weight as the XL motor. So, easy to use, practical, powerful, and not as bad as you'd think.

The motor itself for me is quite powerful but I don't know because I haven't gotten the XL motor yet. All you really need is the battery box and you can build a number of things such as windmills ( if you put minifigs on the windmill they spin like crazy), RC cars ( if you buy two of these motors, the IR receiver and a battery box it works great), drills ( that can tear through paper), it can also be used to clean your dusty legos if you put a q tip on a axle attached to the motor with a rubber band to keep the q tip still, and much much more. Great motor and can be used for a number of things.

As with the Large PF motor, the PF Medium motor is a little expensive for what it is, but is still a very useful motor. It is a perfect balance of size and performance for many applications, and attaches perfectly onto a PF linear actuator. This motor delivers twice the torque of the older 9v motors, as well as a faster rotation speed. It is also much less breakable than those older motors. The shape and size mean that it can easily fit into narrow spaces, and the new design means that it can disguise as a decorative piece anywhere on a technic model, meaning that it is much easier to motorize a technic model than it was with the 9volt motors. One of the only downsides is that the no load current consumption is very high due to the iternal gearing.

I don't understand why they call it the M Motor. Is there going to be a Small motor? Anyway, mine broke after under a year, and it was under no strain! Otherwise it is fine.

I got two of these motors for Christmas and they were not what i expected. Although they may be strong for their size, it is still not that great strengh wise. However it is very fast so it gives you the option to gear it down for more power (which is exactly what I did). another pro is that you can run up two four of them from a single battery box. I will say that is much easier to intagrate into studed creations because it has a small base that can fit onto studs. I will now do a motor comparison for your benifit. M-motor vs. XL-motor. The xl-motor is way better for big creations and if you are going to buy a pf motor or two, then spend the extra two bucks and get some real pf power. M-motor vs. NXT Servo Motor. There is no comparison whatsoever. hands down the nxt servo has better performance, but the price may be the deciding factor for you. here are the numbers: NXT Servo Motor: $20 vs. PF M-Motor $7.50. The price for power: NXT Brick: $150 vs. PF Battery Box: $7. For rechargeable cababilities: NXT Brick: $150, NXT Rechargeable Battery: $55, NXT Rechargeable Battery Transformer: $24 vs. PF Rechargeable Battery Box: $50. There are the numbers, use them to your advantage, but in my opinion, if you are going to buy a PF motor, get the XL-motor every time, because the M-Motor just doesn't cut it for power and tourqe.