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Questions tagged [motor]

A motor is a machine, especially one powered by electricity, elasticity, pressure, internal combustion or some other means, that supplies motive power for a device with moving parts.

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How can the 42180 Mars Exploration Rover be motorized?

The 42180 Mars Exploration Rover has a sturdy Technic frame with plenty of empty space - how could it be fitted with driving and steering motors for remote-controlled driving?
zovits's user avatar
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2 votes
0 answers
77 views

How to troubleshoot an inert Power Functions Servo motor?

I tried to test a PF servo motor before building it into something larger to see if it works - it seems it does not. When connecting it to a 59510c01 9V PF Battery Box and toggling the switch of the ...
zovits's user avatar
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20 votes
2 answers
6k views

Did LEGO ever make motorised boats?

Did LEGO ever make motorised boats? Or an official motor that could be attached to LEGO floating boats.
Dizzy Dude's user avatar
3 votes
1 answer
62 views

Detect stalling Motor in the new EV3 Education Classroom

I have a gripper that should automatically stop closing when an object is grabbed. I achieved this in the older EV3 Home Edition by reading the motor current and comparing it to normal values. If it ...
grnx's user avatar
  • 33
4 votes
1 answer
116 views

Getting started creating LEGO kinetic sculptures

I’m brand new here and fairly new to LEGO. I’m an adult artist who wants to make LEGO-based kinetic sculptures. Can anyone point me in the right direction? My experience is very limited — as a child ...
ShyPlatypus 's user avatar
1 vote
1 answer
456 views

How could I motorize the LEGO Land Rover Classic Defender (10317)?

The latest LEGO Land Rover is primarily a system set: Can this set be motorized using Technic or other components?
jncraton's user avatar
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0 votes
1 answer
212 views

What is the dimensions of lego spike motor?

Any Ideas on what is the dimensions of this motor, and the holes and space between them?
AbdElhaleem's user avatar
24 votes
1 answer
9k views

How can I motorize the Hogwarts Express (76423)

I'd like to motorize this train set: What is the best way to accomplish this?
jncraton's user avatar
  • 40.6k
1 vote
1 answer
129 views

I want to get started making GBC modules. Which powered bricks standard to choose in 2023?

There seem to be two competing standards for powered LEGO modules in 2023. Power Functions Powered Up I have read that Power Functions may be retired soon, but can easily work in a standalone ...
DavGin's user avatar
  • 135
3 votes
1 answer
804 views

Is the LEGO train motor 88011 waterproof?

My son has been building a LEGO RC boat and has added the motor (part 88011) from this LEGO City Train Set to drive the turbines. He's pretty keen to try it out on water but I imagine the motor is ...
themik81's user avatar
  • 133
3 votes
1 answer
618 views

Correct axle rotation of partially built LEGO Cat D11 Bulldozer (42131)?

Page 173, Step 205, of LEGO Cat D11 Bulldozer (42131) instructions has a step to attach two sub-assemblies. What is the correct rotation of these two axles? Is it correct if they rotate in opposite ...
francis's user avatar
  • 41
3 votes
2 answers
332 views

How to power on and adjust speed for a PU Train 88011

I'm doing a project for my kiddos. I'm trying to find the schematics of a lego train motor 88011, I want to control them using an ESP32 through a telegram bot. I have the ESP32 and the telegram bot ...
Eduardo's user avatar
  • 31
4 votes
1 answer
172 views

Wobble problem with the PF L motor

So I got my hands on a used 42095 LEGO Technic set that I wanted for a long time. After disassembling it and testing PF for the first time, I have noticed that one of the motors is extremely wobbly, ...
Jackob's user avatar
  • 71
4 votes
1 answer
215 views

EV3 with 6 motors

My son has made a crane with 6 EV3 motors connected to an EV3 hub. He's used ports A,B,C,D and 1,2. But two of them don't work. Are ports 1-4 just data ports for sensors, not motors? Is 4 the maximum ...
xanld's user avatar
  • 283
5 votes
1 answer
469 views

Can 9V train motors be linked and work together via the top power stud connection?

I'm building a MOC based on the 10219 Maersk Train, but going for the classic track power 9V system given the removal of need for batteries and slowly increasing availability of new 9V parts from ...
Jazzyamx's user avatar
  • 153
2 votes
1 answer
295 views

Lego 21323 Grand Piano - After setting up app on page 110 of instruction, the gear is turning anti-clockwise instead of clockwise as shown

After completing all builds till page 108 of the instructions, I installed the app. But when I press play on a song the gear move for a quarter turn anti-clockwise but the picture on page 110 shows ...
IndranilC's user avatar
4 votes
1 answer
345 views

Is there a Good Replacement M Motor?

I teach robotics with technic parts and M motors. The motors I have bought on Ebay burn out quickly and fit axles poorly (either too tight or too loose). It is difficult to teach when students' motors ...
Legomarty's user avatar
2 votes
0 answers
185 views

Fixing a LEGO M Motor connector

I have several broken "Powered Up" M motors and I took one apart to see what was wrong. I ended up snipping off a section of the wire and re-soldering it back together but testing with an ...
mj_'s user avatar
  • 1,119
25 votes
1 answer
6k views

How does the motorized lighthouse rotate continuously without tangling the wire powering the light?

I'm curious about the Motorized Lighthouse (21335): As the title suggests, this set is motorized to allow the light on top to rotate continuously: From the looking at the inventory, it is clear that ...
jncraton's user avatar
  • 40.6k
3 votes
2 answers
433 views

Convert 9V train to Powered Up

This is a follow-up from question "Can I convert my train 9V 4563 to the Power Functions motor?", now that Power Functions motors have been phased out in favour of Powered Up motors. How can ...
IvanSanchez's user avatar
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0 votes
0 answers
131 views

Motor stalls and starts smoking after roughly 5 seconds

I have done everything that I was supposed to (with the setup), and when I press the button to supply power to the motor, it stalls (sometimes), and when it does spin, I can see a small puff of white ...
Stanley's user avatar
9 votes
1 answer
2k views

Is there any difference in the power, wheel, and track technology between 2018 trains and 2022 trains?

LEGO came out with 60197 City Passenger Train and 60198 City Cargo Train in 2018. Much more recently they released very similar sets 60337 City Express Passenger Train and 60336 City Freight Train. ...
Village's user avatar
  • 747
7 votes
1 answer
621 views

What is the best way to connect SPIKE prime angular motor to a wheel

I was wondering if there is a difference in the amount of torque transferred to the wheels from a LEGO SPIKE prime angular motor (45603 LEGO Education SPIKE Prime Medium Angular Motor) depending on: ...
Raj Rao's user avatar
  • 173
2 votes
0 answers
107 views

Fit motor to old tractor

I'd like to motorise this tractor I built from an old Lego book. I've 4.5 volt motors. The model is 6 studs wide, the motor is only 4, and since the tractor uses big wheels it would be too fast. Is ...
Andrew Hodson's user avatar
0 votes
0 answers
94 views

How do I disassemble Powered Up Motor XL? [duplicate]

My question is, how do you take the XL motor apart? I tried with my knife and hands, but unfortunately, it is still whole in one piece (tabs). I got the XL motor from the set 42099 and I would to make ...
Klaas Vanderstede's user avatar
0 votes
1 answer
176 views

42114 (6x6 Volvo Articulated Hauler) doesn’t operate bucket and also doesn’t drive

My 42114: 6x6 Volvo Articulated Hauler drives in first gear for a moment, then stops completely; same thing with 2nd and 3rd gear. It doesn’t operate the bucket either. I suspect I forgot to add a pin ...
Victor's user avatar
  • 1
12 votes
1 answer
2k views

What's inside the SPIKE Essential small angular motor?

I'm curious about this motor (68488): This motor looks very small. What is inside this motor? How does it compare to the other Powered Up motors?
jncraton's user avatar
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4 votes
1 answer
2k views

I am building the LEGO 42131 D11 dozer and some of the parts are moving in reverse when testing

I am building the D11 dozer and some of the tests like 2 and 4 are moving the parts in the opposite direction that they are supposed to be going. I took apart the entire build and rebuilt it and the ...
Aidan's user avatar
  • 41
1 vote
0 answers
107 views

Power from single XL-Motor to both rear and front axles [closed]

I have a single XL motor and I would like to make my small car a 4WD one. Currently, it is just front-wheel drive. Any good instructions on transmitting power to rear wheels as well?
Ali Ok's user avatar
  • 111
6 votes
2 answers
526 views

How can I connect a 4mm Stepper motor shaft to a technic gear?

How can I connect a 4mm or 6mm stepper motor D shaft to an old Technic gear? I would like to mount an old 8-tooth gear to a 4-6 mm diameter stepper motor shaft. Lego part: 3647: Stepper motor: ...
Gary Kindel's user avatar
7 votes
1 answer
280 views

Looking for a PC controlled motor that allows for very small and precise movements

The image below is a LEGO specimen stage designed for a stereo microscope. I am looking for a recommendation for a PC controlled motors that allows for very small and precise movements. I want use ...
Gary Kindel's user avatar
5 votes
1 answer
175 views

NXT - Mirror motor rotation

I'm trying to make a program in NXT 2.0 that mirrors the (manual) movements of one motor to another. I managed to start motor B running in the right direction but I am having trouble controlling the ...
algiogia's user avatar
  • 163
10 votes
0 answers
336 views

How To Ensure Only One Brick is Fed Into a Lego Sorting Machine at a Time?

In this video, they create a machine that can take a bunch of legos put on to a conveyor belt and, using a camera, sort them into a number of categories. I am building a (smaller) version of this, and ...
Brendan R.'s user avatar
6 votes
0 answers
290 views

Fix Lego M Motor - The hooks aren't budging

I have a Lego M motor that is broken. I'm following the instructions here to try to fix it but the little tabs that hold the plastic frame together just won't budge no matter how hard I'm pushing them ...
mj_'s user avatar
  • 1,119
18 votes
4 answers
2k views

How can I get my motor to line up with a linear actuator?

I am very new to Lego, and I want to create a simple horizontal sliding door. I'm using a medium linear motor to drive a linear actuator which is attached to the door. The problem is the motor does ...
BigJeng's user avatar
  • 181
8 votes
1 answer
417 views

Motor problems in 60051

The motor in my High Speed Passenger Train set (60051) has stopped working properly. I just put brand new batteries in and it acts just like if they were worn. Moreover, the little brown capacitor ...
Heki's user avatar
  • 181
2 votes
1 answer
272 views

What motor and remote control can be used for LEGO train 60197?

I got the LEGO set 60197 passenger train and its missing the 3 components. The motor, the battery, and the remote. I've tried to look online for it but the only motor I see online is 88011. Is that ...
DREISLIKEWHOA's user avatar
1 vote
0 answers
178 views

Are Technic and Education sets overpriced because they're "educational"?

It seems like to get a Technic set of any substantial size costs hundreds of dollars. It's kind of insane. Technic is marketed as "educational". Sometimes I wonder if The LEGO Group is ...
Mentalist's user avatar
  • 353
3 votes
2 answers
1k views

What is inside the LEGO Powered Up L motor?

What's inside the Powered Up L motor (part bb0959c01)? How do its internals compare to the XL motor and the M motor?
Jacob's user avatar
  • 33
4 votes
1 answer
1k views

Difference between the "Simple Medium Linear Motor" (45303) and the "Medium Linear Motor" (88008) Powered Up motors

What is the difference between the "Simple Medium Linear Motor" (45303) and the "Medium Linear Motor" (88008) Powered Up motors, other than the size and design? Is the performance ...
Qliver's user avatar
  • 43
3 votes
1 answer
211 views

Can an EV3 power a buggy motor with the NXT to 9V extension cable?

On Philo's motor comparison webpage, https://www.philohome.com/motors/motorcomp.htm, it says that the buggy motor (42908 lego id, 5292 bricklink id) is not recommended to be powered by an RCX as the ...
Michael Verschaeve's user avatar
0 votes
0 answers
400 views

How to increase the voltage supplying to technic motor through the Technic hub?

I have four Technic Large Motors, all connected to a technic hub. I am using the motor to turn some large propellers and the hub is powered by six 1.5 V (maybe less) batteries depending on the brand. ...
user39178's user avatar
  • 217
2 votes
2 answers
1k views

What is the max current for the LEGO EV3 motors (pin 1-2)?

The LEGO EV3 Hardware developer kit says that the first and second pin of output port provides a current of max of 700 mA with 1 A but the motors appendixes don't have the maximum current that can I (...
amreo's user avatar
  • 159
3 votes
3 answers
891 views

How to stop or freeze the EV3 large motor in position

How do I stop or freeze the large motor in a fixed position? I have a forklift type attachment that will lift to the precise height, but will not stay in position due to the weight of the attachment. ...
leblanc9425's user avatar
5 votes
2 answers
249 views

How does the 8365 Tuneable Racer work?

The set 8365 Tuneable Racer has tunability as its main feature, meaning the motor's parameters can be changed by adding, removing or swapping certain additional elements. However, these parts seem to ...
zovits's user avatar
  • 16.6k
4 votes
0 answers
53 views

How do I sync audio and movement on my NXT 2.0?

How do I sync audio and movement with my NXT 2.0? I'm building an animatronic head and I can't find a good way to sync it with external audio because the internal speaker is too quiet.
ceehkiberki965's user avatar
0 votes
1 answer
71 views

Program just stops motors and won't move

I'm trying to make a program in the NXT software that turns on the motors unlimited, then waits until something is less than 30 cm, stops the motors, turns to the left 30 degrees and saves the value ...
what's user avatar
  • 11
6 votes
1 answer
770 views

Any build instructions for vertical Technic/Lego conveyor belts?

I'm trying to figure out how to continuously lift a stream of incoming pieces up vertically, at least 10cm. This is my first real custom build attempt, so I'm very much at a loss on how to go about it....
Karl M. Davis's user avatar
7 votes
1 answer
3k views

How to run 2 motors at the same time in the new EV3 version?

So I've seen a question that solves my problem in an older version, which I don't think is possible in the Education EV3 Classroom - 1.2.2, which is the one I'm using. I want to simultaneously run 2 ...
Lukmatzie's user avatar
4 votes
1 answer
312 views

Does LEGO sell a DC relay for Power Functions?

I’d like to use a signal from a (5V) littleBits circuit to control some (9V) Power Functions motors. Does LEGO sell or recommend a DC relay to facilitate this sort of thing? If the answer is no, I’d ...
EJ Mak's user avatar
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