Questions tagged [building]

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

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48 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 ...
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1answer
53 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
80 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 ...
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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/) ...
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0answers
178 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 being ...
4
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0answers
144 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 ...
2
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1answer
178 views

How to build a 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 Legos. Basically the tiles on a ...
5
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1answer
167 views

What techniques can be employed to build a low-profile sliding door/wall?

I'm looking to build a sliding door or wall that doesn't use the defacto "sliding door" parts, 2874 and 4511. These parts are almost usable for my design: they are thin and have a built-in stopper ...
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2answers
108 views

Looking for sets with lots of printed parts or other special parts to use as components for my city

I'm thinking about building an early 20th century ('30s / '40s) European city, using both complete sets and parts of sets as resources I'm looking for pieces that add detail to this city, both ...
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0answers
45 views

Custom extension cables for Light Stax?

Recently, I got the S-12012 Light Stax kit with 50 (!) light bricks. They are different from those described in this question, but they are much cheaper, colorful and with blinking/pulsating effects. ...
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0answers
165 views

How can you get the pipes on Steamboat Willie to work reliably?

We recently began building 21317 Steamboat Willie. We've got it mostly built, but the pipes keep getting stuck. The rear one works, but the front one keeps getting stuck up and won't go down. We've ...
8
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2answers
320 views

Has this building technique been used in an official set?

One of my favorite building techniques is to place a Technic pin into the anti-studs of a brick. This allows two bricks to attach bottom-to-bottom. It's a pretty secure connection, but I'm not sure ...
4
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1answer
152 views

Is it possible to build 3 or more concentric circles / nested circles / telescoping pieces?

There are round 2x2 pieces. There are round 4x4 pieces with round 2x2 holes, the 2x2 can slide/rotate inside of it. There are "macaroni" pieces to make an 8x8 circle with a 6x6 hole. But are there no ...
4
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2answers
129 views

Best Way To Make This Panel Flush With The Wall?

I would like to use the 8x8 grates on the side of the building (studs out) as window pieces so there is nothing behind them. I'm wondering if there is a better way to have a more stable connection. I'...
6
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2answers
109 views

Mecha Rail Launchpad Building techniques?

Another mecha question, but this time, at least I think, is not so intense as my last question. I've decided to take my biggest and most ambitious LEGO project yet, a custom MOC of a Pacific Rim ...
2
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0answers
183 views

Where is an instruction sheet for Ausini set 25418 guitar?

I bought an Ausini brick set AUS-25418, which is a guitar, however as cheap as it was the price, it didn't have the building instructions, at least it looks like no piece bags or stickers are missing. ...
5
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1answer
132 views

Building advice for “hunched” mech lower torso design?

Another mech based question, let me clean up as best I can... So, in LDD, I'm working on an Evangelion Unit from the popular manga and anime, Neon Genesis Evangelion, and have decided to build EVA ...
4
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1answer
131 views

I'd like to build a mechanism to press buttons on a remote control. What is a good basic approach to use?

I have a small remote control like device with about 11 buttons. The centers of each button are placed about 1.1cm apart, and each are about 0.7cm in diameter (this means about 0.4cm between the edges)...
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1answer
445 views

My Lego Technic 42082 wheel stuck and can't move [closed]

After I finished my 1st manual book, I found out that my crane wheel can't move. May I know which part that I did incorrectly?
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4answers
279 views

How can I assemble 2 opposing gears so that the axle rotations are perfectly parallel?

Due to the way all the modern LEGO gears are perfectly quarter-turn symmetrical, there doesn't appear to be any way to assembly 2 opposing gears such that I get a 2 perfectly parallel axles. This ...
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0answers
58 views

What can I do with all my brick separators? [duplicate]

Since LEGO has started adding a brick separator to each of their larger sets, I have more brick separators than I know what to do with. Due to inflation, they also aren't really worth anything to try ...
4
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2answers
216 views

What are some good purist rotacaster / omni wheel designs?

In robotics, rotacasters or omni wheels are often very useful. It's possible to buy LEGO-compatible ones from some third parties, here's one random example: Unfortunately, LEGO has yet to make any ...
5
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1answer
234 views

Building technique for plate at near 45 degree angle

Trying to construct an octagon shaped hallway and trying to attach plates at a near 45 degree angle, but have no idea how to do this. Are there any techniques for attaching plates at a near 45 degree ...
5
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1answer
113 views

LEGO color discrepancies and tint variations

While building my copy of set 21310 - Old Fishing Store, I noticed that there are several shades of Sand Green amongst the many tiles of this set. The picture below shows just the 1x4 tiles included ...
6
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1answer
171 views

How to place minifigure legs into normal LDD bricks, like a 1x2 brick?

Let me clear up the confusion surrounding this question to the best of my abilities I'm currently in the final steps of finishing of a mech project I started some time back, finishing now at the ...
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2answers
425 views

Identifying Parts Used For The Escape Hatch of Sariel's Tiger XL Model

I am working on a similar model of Sariel's Tiger XL in prep for my own designs of a few other German WW2 tanks, and need some help identifying a part or two. Does anyone know what are the two parts ...
5
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1answer
386 views

Pattern for oscillation with LEGO Technic

I would like to simulate an oscillation movement of 120/100 degrees around a fixed point. Something like this one: Basically, I want to rotate a gear around its axis, but only have a partial ...
7
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1answer
117 views

Stuck on 42066 Air Race Jet model B

I've successfully built model A of the Air Race Jet but with model B I've got stuck on page 7, instruction 8. How do you do that?
10
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1answer
249 views

Why do some LEGO City vehicles have tiles in their chassis?

While building 60150 Pizza Van, I noticed that the first few steps of building the eponymous vehicle have you place lime green 1x2 tiles in specific positions and black 1x2 plates in others: These ...
7
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1answer
144 views

How can I firmly attach a triangle to a turntable?

I found a couple good technic triangle designs over on brickengineer.com. For example: How can I firmly attach a triangle to a large turntable? Details: Really I only need to attach ...
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1answer
220 views

Extra pieces in 76112 Batmobile

I've been building the new app-controlled Batmobile. As far as I can tell, step 34 shows many more elements in the parts list than are actually used in the build. What is going on here?
2
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1answer
78 views

How do I connect part 62113 together to form a ladder?

I am looking to build a ladder. I saw part 62113 and was wondering if its possible to connect part 62113? Here's what that part looks like:
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2answers
164 views

How do you support upper floors in tall buildings?

When I build a skyscraper out of LEGO and the floor above is weak do I remove the flooring from above and a pillar underneath and then put the floor back or something?
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3answers
198 views

How can you pin the Penguin Suit Guy down?

I like penguins and so I was really amazed to find the Penguin Suit Guy in Collectible Minifigures Series 16: But despite coming with the 88646 tile he won't stick to it because of the skates: There'...
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1answer
182 views

How to visually search for specific parts in a 3D model?

For an missed/loose piece that needs to be reattached, I plan to check all the steps where the piece was used. If I can also get an overview of the possible piece locations from the existing 3D models,...
5
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1answer
471 views

Fan door does not close completely - Air Race Jet

After completing the Air Race Jet, I found that the upper fan door does not close completely (stopping short by about 1/2 inches) when I switch from VTOL to Flight mode. The attachment points to the ...
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1answer
124 views

Problem assembling wings as shown for LEGO Air Race Jet (Technic 42066)

On Page 158 (Step #231) of the assembly instructions for the Air Race Jet, two red rivet bricks are shown being inserted into a wing. But the pieces in question will simply fall through the holes in ...
3
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1answer
135 views

How to ship a LEGO sculpture to a contest?

I am planning to participate in an art contest that allows paintings, sculptures, or video clips. I have a LEGO sculpture in mind that would fit the idea of the contest, but it would have to be ...
8
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1answer
706 views

How many 2x4 Lego bricks would it take to build a real skyscraper?

As an exercise designed to communicate the scale of plastic waste in the oceans, which was estimated at 268,940 tons in 2014, I'm trying to describe how many life-size buildings one could construct ...
7
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3answers
498 views

Problem with “warping” of LEGO water

I am new to Bricks.StackExchange, but not to StackExchange, nor to LEGO bricks. I have run into a problem and was hoping for some ideas. I was trying to imitate the cool water technique of Legopard ...
3
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1answer
193 views

Is there any reason behind fancy bricks in invisible places?

In set 60080 there is a blue bick with pretty fancy shape. There are also hardly visible bricks in other places. Is there any reason? Why are these bricks used? Any official or semi-official ...
3
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1answer
74 views

Principles of D.I.Y. Minecraft microworlds

Lego released 4 Minecraft microworlds which more or less fit together with each other in some meaningful way. Just to impress my boys I've been making my own worlds on 6x6 plates or wing pieces. I'...
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1answer
76 views

Are there any wheels or rings that fit in clips?

I  was experimenting with Lego part 16091 Vehicle Steering Wheel Small and various clips, mainly the ones that fit onto bars. To my frustration I found that the clips do not engage at all with the ...
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2answers
277 views

How are these transparent stairs made?

What techniques and bricks are used to support the transparent pieces? Can anyone work it out?
7
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1answer
186 views

Connecting “out of system” roads?

I've been trying to figure out how to connect SNOT road models that are at varying angles to one another. You can see my efforts in this thread. Are there any interesting methods of connecting roads ...
4
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2answers
307 views

What's the fastest way to rebuild different sets that have been brought together

My mom did something to my LEGO. When I was a kid I loved playing with them. Frankly I have no interest in it anymore. She broke down all them sets, and put them all in a huge box. I still can ...
4
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2answers
262 views

Building a more-efficient water propeller?

I enjoy making Power Functions-controlled boats to race (in water) in various LEGO convention competitions (which require 100% genuine LEGO pieces). Usually, these boats end up being paddle boats, ...
10
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2answers
550 views

How can I build a brick-built monorail track?

LEGO haven’t released a new monorail set since the 90s, and the track parts that were made are very expensive and hard to find. I am interested in building a brick-built alternative. I am ...
10
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1answer
397 views

What is the largest jump in LEGO instructions?

What is the largest gap in LEGO instructions in terms of build time needed to complete a step? For example, Skyline (5526) includes this step: That is quite a leap between steps 14 and 15. I'm ...
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2answers
129 views

Lego identification help!

What does this build? Can anyone help me with the instructions link?