Questions tagged [building]

Interested in building techniques? Then this is the tag for you.

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51 views

Creating a Curved Grand Stand

I am back using Lego as an adult. On Youtube I saw a video of a quick build of the Colosseum, which connected the same standard parts with a connector to make it curved. I want to do something similar ...
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1answer
132 views

Question about the lantern pieces in the Winter Toy shop set

I have a question about the lanterns in the Winter Village Toy Shop. I'd like to just buy the parts to make a few of the street-lights in that set. However, from reading the instructions (steps 4 and ...
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2answers
585 views

Connecting an axle to a stud on the ground for railings

I'm trying to build railing using axles and connectors and am not finding an easy way to get the axles that go to the ground to connect in a way that would be best for my design. Three options I've ...
14
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1answer
2k views

Is this an error in the updated Harry Potter Diagon Alley build/instructions?

In the book 1 directions for the 2020 Diagon Alley set (see pp. 43ff), I've run into the following issue: In building the back of Ollivander's shop, we seem to be building some type of shelving unit: ...
5
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1answer
210 views

What all fits into 4532 “Container, Cupboard”?

On Bricklink, the entry for 4532 (a container) lists several parts that fit, but it currently doesn't even list 4536 (a drawer). What else fits into 4532? Better yet, what are some "illegal" ...
3
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1answer
107 views

Wall Sconce Light

I'm trying to plan a few wall sconces for lighting as in this picture: One thought I had was to put a transparent 2x2 round halfway into the wall with half of it hanging out and then put 2 quarter ...
8
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2answers
352 views

How can I complete the build of this Lunar lander from the Space and Airport Set (9335)?

We recently got Space and Airport Set by LEGO® Education (9335) for our four-year-old who loves space and really loves his Duplo. He's been enjoying putting together the different parts of the kit but ...
3
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3answers
187 views

What are the arguments for and against an adult tackling a complex LEGO Technic kit as their first (and possibly only) build?

Suppose I want to get an overall view of LEGO as an adult and can afford to buy an expensive kit. I have the following abilities Good eyesight with glasses Good hand-eye coordination and ...
7
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2answers
260 views

How to integrate hardware/embedded button with LEGO?

I have two different buttons B3F-1000 and 3a250vac switch which i want to integrate into a lego "machine" which i'm powering with an arduino. Since the rest is integrated into lego plates, ...
9
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1answer
231 views

How to fill a vertical 1.5 stud wide gap?

How can a vertical 1.5 stud wide gap be filled, for example between this brick on a jumper plate and regular plate? I can achieve ratios multiples of 1/3 and 2/5 with sideways plates, but some ...
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1answer
160 views

Creating arrow patterns

What methods are there to creating convincing looking arrow patterns on walls and floors? (Without stickers or printed pieces) My current solution is to use "relief" building with slope ...
2
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1answer
110 views

Securing vertical hinge

In this construction, I want the vertical hinge to be in this location, centered in a 3 brick wide area. On top of it is two plates and layer of studs that match the 5:2 ratio, so in theory the hinge ...
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2answers
1k views

Elevator on rails

I'd like to build an elevator for my apartment building. My plan is to use rails and grooves to allow the elevator to slide up and down. This means I have to build the elevator with the studs ...
4
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1answer
241 views

How can I make controller ports round for my “Lego Gamecube”

Found my wife's old 2001 "Nintendo Gamecube" and then it sparked an idea. Once I was done it looked very nice but I still feel there is something missing! How can I make round controller ...
5
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2answers
112 views

Technique for holding a horizontal minifig in place (swimmer)

I'm building a scene on an 8x8 base plate, ideally the depth of the base is 1 full brick high. The design is to have a swimmer minifig horizontal (i.e. swimming) but also at an angle to the base plate,...
1
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1answer
230 views

Lego technic 42082 4 wheel steering issue

I have just completed the build and everything appears to work as it should except the 4 wheel steering. When you turn the small wheel on the rear of the crane only the rear wheels steer. The front ...
15
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1answer
270 views

How to connect fire to Lord Business' Coffee Mugs?

So, we have Lord Business' Evil Lair (70809-1), and we also have some two-tone flames from another set. How can the flames be attached to Lord Biz' coffee mugs (as seen in The LEGO Movie)? + The ...
6
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2answers
892 views

How could I make a playable LEGO piano?

I was thinking of how hard it is to make a LEGO piano. I have already tried to use a rubber band but it did not make a good sound when I plucked at it. My problem is that I want to make a piano but I ...
5
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3answers
449 views

Putting flipped plates together as close as possible

I have two plates that I would like to connect together and collapse with the studs facing out like in the image below. I need the two plates to sit as close together as possible. But I'd like them to ...
8
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2answers
5k views

If I were to make a LEGO fan how would I make it blow air on me?

I was just wandering off into my imagination and then it hit me: I should make a LEGO fan? I mean, how hard could it be? It is actually very hard for me. No matter how much ratio I put on it, it ...
15
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2answers
2k views

Stained glass windows on The Throneroom of Cedrica

Can anyone explain how to make the stained glass windows in builds like The Throneroom of Cedrica?
2
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2answers
79 views

Putting tires onto axles

I have vintage Lego sets (1970's and '80's). I absolutely cannot get the tire to fit completely over the axle. Should I try grease or hot water? I know this is the correct tire because I have some ...
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1answer
1k views

Pirates of Barracuda Bay 21322 - Is there a way to get the ship pirating-worthy?

From what I have read, when you convert the island to a seaworthy ship, you are still left with the inn part, and no cannons on the ship. All the portholes are gone or converted to windows. Is there ...
6
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1answer
283 views

Simple way to build large circular plates?

I was wondering if there is a simple way to create a large circle or circular plates. I want to build a MOC of the Hero Factory assembly tower (In LDD first) but most of the pieces that form circles ...
7
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1answer
595 views

How does the Space Shuttle dock the ISS?

The IDEAS International Space Station (21321) comes with a miniature model of a space shuttle. And while that has its place on the space station's stand, the official LEGO product page literally ...
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4answers
499 views

How to prevent my connected axles from falling apart?

In my EV3 robot, I have two rear axles connected to each other using this part mounted like this: [ The problem with this construction is that after a while of driving, the axles disconnect like ...
3
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1answer
191 views

Which pieces were used to make the flexible mesh skin for the life size Lego Bugatti?

In the linked video, around the 1:50 - 1:55 mark, a person can be seen picking up a flexible hexagonal mesh, and bringing it to the side of the vehicle. Also, close ups are visible around 2:03 - 2:37. ...
8
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5answers
339 views

Horizontal connection between plates

If I only have minimum height available (one plate), how can I make a horizontal connection between two components? I need the connection to be easily disconnectable yet sturdy (like technic bricks ...
8
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3answers
337 views

Combine Duplo feet with regular LEGO

I would like to place this Duplo pig directly on Lego bricks/pieces. I tried an intermediate Duplo 2x4 plate with Lego bricks underneath, but it doesn't look good. The problem is that Duplo feet ...
3
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0answers
80 views

Can 2 baseplates be connected to make 2 story level? [duplicate]

My young girls are creating a house and want to connect baseplates to make a 2-story house. Is there a way? Are there specific pieces that can connect them?
3
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1answer
128 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 ...
17
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2answers
4k views

How can you make a hip holster for minifigs?

Is there a way to create a holster of some sort so you could attach a LEGO pistol to the side of a minifig, around the hips?
5
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2answers
415 views

How to locate pneumatic leak

I have a simple pneumatic claw with a 2 pump compressor that I built somewhat recently. It worked fine for a while, producing up to 4 bars of pressure, but then the system wouldn't increase the ...
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2answers
5k views

Is this assembly legal?

This question might be strongly opinion-based, but I also think it might be interesting. I know there is a guide for Lego builders to decide if their build is legal or not. However, the cases of this ...
3
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1answer
210 views

Can you identify these arch-way pieces

I'm considering starting a project inspired by some of the Arab-style buildings I've seen. Most of them use a sort of curved archway around the windows. I can't figure out how to duplicate it. Can ...
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1answer
139 views

My Mindstorms Spik3r can't turn around

When I use the button for turning it just goes backwards. Why does this happen? I've checked the instructions and didn't find anything.
4
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2answers
367 views

Which parts have no-friction Technic axle holes?

I want to make a no (or very low) friction inline coupling for axles. The axles must turn, transmit moderate torque, and be in phase (therefore backlash must be minimal). The axles remain inline at ...
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0answers
73 views

All terrain crane 42082 [closed]

The wheels don’t go round after the first book is finished. Has anyone else had this issue? What did you do to fix it?
5
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2answers
5k views

How create a custom Roller Coaster? Where I can get the track pieces?

For some random reason, I watch some videos on YouTube showing a "Roller Coaster" built using Lego. I never enjoy to follow Lego instruction, and I always prefer to build something my own, mixing any ...
8
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4answers
464 views

How to eliminate a gap of an offset in a corner

So I need to build a layer with offset bricks, which I have managed to figure out. However, the corner is a problem. The dark bricks in my pic need to be in that position. How do I fill the gap ...
8
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2answers
2k views

What are some LEGO Christmas trees designs I can build?

It's Christmas time, and I'd like to build a Christmas tree to add to my winter scenes. Unfortunately the large LEGO pine tree is a little small, and also doesn't offer much by way of decorating ...
5
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2answers
202 views

Going from LDraw/LeoCAD to Physical Set

Once I've designed a MOC using either LDraw or LeoCAD where can I go to get the bricks I need to then build that set in the real world? I've been poking around forums for an hour now trying to get ...
8
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1answer
3k views

Trouble with 42110 Land Rover Defender transmission

I just got the 42110 Land Rover Defender and assembled bags 1 and 2. I tested everything before joining the front axle and rear axle, and the friction was quite low, not nearly high enough to get ...
3
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1answer
313 views

Lego Classics alternative

I've been looking at buying one of the classics sets for my young kids. My desire was to have a large collection of bricks that they could build houses/cities/etc with. I thought that the Classics ...
2
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1answer
123 views

How to make a RPG (Rocket Propelled Grenade)

I don't know if this is of-topic or anything, but: I have a big scene with cops and stormtroopers fighting. And the cops need some stronger weapons than some sub-machine guns. So i was wondering if ...
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1answer
105 views

Ideas to help develop a child's engineering skills?

My son is 7 yrs. old and has really creative ideas with his bricks. I see it challenging him and wonder, "How can I help develop his product engineering/design skills?" What kind of tasks can I give ...
12
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2answers
2k views

How is this kind of structure made?

Recently I found a MOC made by Headzsets from Instagram, in particular this interesting structure from his EVA work. Here is a picture of his structure: (https://www.instagram.com/p/BtCymDRHJx6/) ...
7
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1answer
326 views

Building techniques for designing a LEGO City Street scene?

As the question suggests... I'm trying to build a city street in "midiscale" similar to that of Hong Kong, but I have no idea on where to even begin with something like this. This project is ...
4
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0answers
313 views

How to build an arch that is angled out of Lego?

I am currently working on a MOC for the USS Orville and I am trying to figure out the engines. I have gone through a couple of iterations on my current version, but it always buckles under its own ...
4
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1answer
267 views

How to build a waterproof roof out of LEGO blocks?

How would Lego blocks be tiled to provide a water proof roof against the rain? The lattes or internal support structure of the roof doesn't have to be also made of Lego. Basically the tiles on a roof ...

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