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Questions tagged [disassembly]

The technique of disassembling two or more parts from one another.

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6 views

Best way to rebuild partially built sets

I'm brand new to this group. I have a huge number of legos in about 8 under-the-bed storage boxes from the Container Store. They are from 80+ sets (I have all the instructions but not the boxes) that ...
1 vote
0 answers
33 views

What electronics are inside the Spike Essential parts?

The Spike Essential set introduces two new robotics parts; a two-port Spike hub (part 67351c01) and a 3x3 LED matrix (part 47592c01): What electronics do they have inside? How do they compare to the ...
11 votes
8 answers
9k views

How to disassemble the propulsion wheels of the LEGO/DUPLO train engine base part# 28743 drivetrain?

I have a push and go motor, also known as Hub No5 model also known as engine base part #28743 The issue I have is that the train can not climb the bridge anymore, unless using the locomotive alone ...
5 votes
0 answers
106 views

How do you take apart the 4.5V Right Switch Track with White Ties?

I have part x879cx1, and its centrepiece that moves back and forth is broken (the lever snapped off, and a bit of the track on its lefthand side). Luckily I bought a bulk lot which had a loose one of ...
8 votes
4 answers
2k views

Millenium Falcon 75192 Disassembled Storage

I recently bought the Millenium Falcon 75192 and built it. I would now like to take it apart and store it. I don't have a LEGO collection, and would like to store it in a way that I won't have to dig ...
5 votes
1 answer
200 views

Electronic inside Spike Ultrasonic Sensor 45604

What is inside the Spike Ultrasonic Sensor 45604? Pictures of Top&Bottom PCB-Assembly would be helpful. PoweredUp Cable and Connector use 6-Pin, but why is there used 8-Pin connector inside "...
1 vote
1 answer
105 views

How can I remove a Lego 4x4 plate from a non-Lego baseplate? [closed]

I have tried using a brick separator, prying with fingers, bending the plate and stacking bricks on it.
4 votes
1 answer
176 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, ...
2 votes
1 answer
243 views

What electronics are inside the SPIKE 3x3 LED Matrix?

What is inside the LEGO 3x3 Color Light Matrix 45608? Pictures of the assembled Top- & Bottom- PCB would be helpful.
7 votes
1 answer
2k views

What electronics are inside the SPIKE Prime angular motors?

Is there any information available about the internals of the SPIKE Prime and Robot Inventor angular motors? What Hall-Sensor is used by the SPIKE motors? To be more precise: I'd like to get ...
6 votes
2 answers
2k views

How To Disassemble the LEGO Boost Hub?

I can get the hex screws off and pry apart the plastic tabs on the bottom plate, but for the life of me I can't un-clip the back tabs. Any ideas on where to press/pry?
10 votes
2 answers
573 views

How can I remove a rubber band from a pulley?

We have a pulley and a bunch of rubber bands: We don't know that part numbers, but they all were part of a Mindstorms (RCX 2.0) set. My son was trying use the pulley and band to transfer power to ...
3 votes
1 answer
355 views

How do I switch out a gear in the Cat D11 set without taking the set apart?

I have a fully completed Cat D11. Great build. (I have previously built the Bucket Wheel Excavator, the Rough Terrain Crane, Liebherr 9800, Airbus 175, etc.) Couldn't get through calibration. Did not ...
5 votes
1 answer
305 views

Piece stuck in LEGO T-Rex body part nr. 6223585

My son stuck a rod piece through one of the openings in the T-Rex body middle part (part# 6223585). How can I open up the body to retrieve the rod piece? The body is made of two parts that are clipped ...
7 votes
1 answer
624 views

What's inside a linear actuator?

The two linear actuators that I know, 61927c01 Linear Actuator and 92693c01 Linear Actuator Mini, have a built-in clutch (that makes a clicking sound when feeding the actuator torque when it's fully ...
2 votes
0 answers
202 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 ...
3 votes
2 answers
2k 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?
6 votes
1 answer
769 views

What's the easiest way to remove the license plate on the Time Machine?

I have the 10300 Back to the Future Time Machine. I'm assembling it for the first time, Following the directions. and I'm at the end where they're allowing me to pick which of the three I want to ...
9 votes
1 answer
3k views

What is inside the LEGO Powered Up M motor?

What is inside the M motor in the new Powered Up system? How is it different from the older Power Functions motor?
0 votes
1 answer
538 views

Any tips for putting figure's hands into the arms?

I've recently bought some Chinese LEGO-like sets and, even though the quality might not be the same as the original, I sometimes think it's a reasonable tradeoff for the 50-75% price discount. ...
7 votes
3 answers
460 views

How to open first version of the pneumatic cylinder? (Part no 4688c01)

I have a Lego Technic set 8040 from 1984 with the first version of the pneumatic cylinder. Unfortunately, the shaft on the cylinder broke. Apparently the top of the cylinder (lid) is glued. Is there a ...
2 votes
0 answers
116 views

I just finished the typewriter set and everything works fine but the type-bar is a little higher than it should be. Is there any way of fixing it [closed]

The typewriter works perfectly fine. The only problem is the typebar being a little higher than it should be.
13 votes
1 answer
2k views

Can I safely dissassemble a 74569 motor (the old, fast 9v one)

I have an ancient 74569 motor: Unfortunately, it's broken: The shaft spins freely by hand, but when I connect power to it, it doesn't spin at all. I would like to see if I can just open it and place ...
6 votes
0 answers
296 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 ...
8 votes
2 answers
2k views

Insert a gear into a turntable?

Is there a way to insert a 24 tooth gear into a turntable of the 48452cx1 type? --> Is there any model to feature any tooth gear (even smaller) used inside this turntable? This specific ...
16 votes
3 answers
9k views

How to disassemble LEGO train engine base part# 28743?

I have one of the new Bluetooth engines (part 28743, but in the bottom it says Hub No 5 model) that has started to under-perform and make some noises, I think that it need some maintenance (maybe due ...
4 votes
4 answers
1k views

How to remove round tiles easily from a plate

I have made a road for a medieval style MOC by putting 1x1 tile, 1x1 round tile and 1x1 round plate on plates of varying sizes. When I want to remove the round tile from a stud not on any outer ...
11 votes
1 answer
513 views

How can I extract a metal axle from a plastic wheel without damaging them?

I have Plate, Modified 2 x 2 with Wheels Red with metal axles that have developed rust and I need to sanitise them, as I have rust even on the plastic pieces This is an example of wheels I need to ...
7 votes
1 answer
1k views

What is inside the Technic Powered Up XL motor?

What components are inside the new Technic Powered Up XL motor? Is it the same as the PF XL motor, except with a different connector?
20 votes
6 answers
3k views

How can I easily remove a jumper plate without a brick separator?

How can I easily remove a jumper plate? I find it very difficult to remove this kind of brick with a brick separator.
6 votes
1 answer
543 views

How do I remove this piece when the other side is obstructed?

I bought and constructed the Millenium Falcon 75192. Now, I'm breaking it apart for storage. I just don't know how to remove the black piece below (the same as the alone one but in the structure) ...
16 votes
2 answers
3k views

Remove 3, maybe 4, decades old PVA glue from Lego

A friend of mine gave me a large crate of Lego that he found in the house he just bought. It appears to be several sets from the late 70's. (I spotted the building instructions for the 850 and 851 ...
1 vote
2 answers
691 views

Take off a small 1x1 piece from bigger LEGO surface

In general, what is the best approach to take off small pieces from a surface like the one in the picture? How to proceed What should I do if I don't want to deal any damage to LEGO itself? I want ...
12 votes
12 answers
6k views

Most inseparable combinations?

Some combinations of pieces are really hard to get apart – really hard. Can some answerers provide a list of “dangerous combos“? For example, a 2×2 with a round 2×2 on bottom. Also, if possible, ...
27 votes
18 answers
22k views

My poor minifig's head is stuck in his helmet!

Recently I made a LEGO race car with a driver who wore a helmet. Unfortunately, after the race, I tried to take off his helmet and his head came off inside the helmet. Any suggestions about getting it ...
5 votes
1 answer
337 views

Mounting a mosaic modularly

I have this LEGO mosaic consisting out of 3 by 3 baseplates (32x32): As it takes up too much space lying flat, I would like to mount it vertically or near vertically, slightly leaning backwards, like ...
21 votes
4 answers
7k views

What tool can get the Technic pin out from a connection closed in the other end?

I'm having trouble removing these LEGO Technic pins apart from their connectors and I don't want to use carpenter tools like pliers which may damage the bricks. What tool can get the pieces separated ...
6 votes
2 answers
14k views

How can I remove old LEGO bricks that are stuck together?

Brought my childhood LEGO sets from 1970's and 80's for my kids. The pieces attach much tighter together than sets purchased recently. Can something be done to loosen the attachment without damaging ...
38 votes
12 answers
26k views

What tool can get two 1x2 plates apart without damaging them?

Teeth and pliers tend to leave unsightly marks on the bricks. Fingernails don't work too well. What tool do you recommend to separate them?
18 votes
7 answers
9k views

How to unplug black friction pin connectors

Black friction pin without slots connectors are common in older Technic sets. Note that these were quickly replaced by the current version with slots that is much easier to remove. vs Especially ...
3 votes
1 answer
214 views

Miniature Lepin box door stuck inside box itself

Yes, maybe the title may be confusing, but this image says it all: I got a Lepin city set not too long ago, and it included this box. I have no idea how this happened but during use the door ...
11 votes
6 answers
1k views

How do I remove a racing helmet from a garbage can?

We have a red Lego racing helmet that has become wedged with its round side up in a 2 handled Lego garbage can. I cannot access any of the visor indentations, the face slot or the neck circle. I tried ...
6 votes
1 answer
258 views

Lego Duplo Train Track Switcher washable? / Best way to clean them?

I've found some pretty old Lego Duplo train track parts, that I'm looking to sell on Ebay. As these are pretty old and caked with dust, I wanted to used my usual method I usually use to clean all ...
3 votes
2 answers
549 views

How to disassemble these parts?

I have these parts put together really tightly and have no idea how to separate them. Does anyone have any suggestions? Sorry for the black color, I do not have them in any of the brighter colors, so ...
3 votes
1 answer
1k views

How do I sell complete LEGO sets still assembled?

I have several complete items I want to sell. I have the instruction manuals but no boxes. They are still together. They include the old Death Star, and some other Star Wars, the complete Lone Ranger ...
6 votes
1 answer
141 views

Is it safe to remove PC (polycarbonate) arms from minfigures?

I would like to replace the clear PC arms on the Chima ice figures with opaque ABS. Would I still be able to use the clear PC arms with other figures after I have removed them? I know that removing ...
6 votes
1 answer
172 views

Any ideas how to separate these lobed gears and lightsaber pieces?

Any help please? I've got these two pieces stuck together and not sure what to try! I don't want to break the pieces...
2 votes
2 answers
662 views

Re-building sets - paid services?

My son has A LOT of LEGO sets, which have sadly broken down into many, many millions of pieces. Does anyone know of any paid services that might help re-build his sets. I know this sounds like it ...
4 votes
2 answers
9k views

Selling complete sets, Assembled or Disassembled?

I have several complete Lego sets that are assembled. I would like to sell them and want to know if I should ask a higher price if I disassemble them and organize the pieces? I also have the ...
6 votes
2 answers
2k views

Separate LEGO Technic wheel from 3 pin hub

How to separate a 3 pin wheel hub (part# 92909), from this wheel (part# 44772), in order to replace it with another wheel, such as part# 22969?