Questions tagged [building]

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

Filter by
Sorted by
Tagged with
-4 votes
1 answer
37 views

How to connect together 2xBar 4L parts [closed]

I want to build monorail MOC minifig, and I need to connect 2xBar 4L parts together to make rails, but I don't know how to make it, and I need to exclude stopping monorail.
user avatar
  • 1
1 vote
0 answers
50 views

42131 Bulldozer Testing [duplicate]

Got to the testing page and everything is working correctly except the left track is going in the opposite direction to the app animation. Should I start again?
user avatar
4 votes
2 answers
140 views

Plate perpendicular to bottom of square brick/plate: is this connection legal?

This is closely related to the question about jamming plates underneath 2x2 round bricks, (and indeed prompted by a comment there), with differences explained later. It is possible to attach a plate (...
user avatar
  • 4,669
6 votes
0 answers
116 views

Plate perpendicular to bottom of 2x2 round: is this connection legal?

I've played enough with 2x2 round plates and 1-stud-wide plates to know that it's possible to attach a plate underneath a 2x2 plate and perpendicular to it, like so: The same connection is possible ...
user avatar
  • 4,669
2 votes
0 answers
73 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.
user avatar
3 votes
1 answer
255 views

Technic pin on a pole: is it an illegal technique?

I have two 2714b pieces that I want to put together to make a longer pole. Is sliding the technic pin of one pole over the end of another pole illegal? (If it is, how else could I make a long and thin ...
user avatar
4 votes
1 answer
203 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 ...
user avatar
  • 41
1 vote
0 answers
73 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?
user avatar
  • 111
7 votes
1 answer
262 views

5x3 Half Round Problem

How can I hide on top of this with tile pieces? To make it like this: //Edit Thank you for the solution @jncraton Before answering I made it like this: But now it looks way better and it will be ...
user avatar
5 votes
1 answer
466 views

42082 crane boom doesn't engage

At the top of the sleeve part of the boom is a gear and that is supposed to turn against a rack of teeth all along the inner slide part of the boom extension, to make the boom longer or shorter. ...
user avatar
  • 231
4 votes
1 answer
154 views

Lego rough terrain 42082, page 57 book 1 - how does it connect internally

Is the dole meant to connect to another cog inside so all the gears rotate the big round cog on top (Image from brickinstructions.com)
user avatar
  • 41
5 votes
0 answers
301 views

How do I build my LEGO slope so it connects to the flat top without any notable ridges?

I'm currently building a functional LEGO escalator that is minifigure-scaled and with staircases transitioning from flat platform to stairwell to flat platform. Here's my progress so far: Here's the ...
user avatar
16 votes
6 answers
5k views

Estimate building time for a given LEGO set

I'd like to be able to estimate better how much time a LEGO set will take me to build. Are there any resources online that indicate average or fastest building times for a given set? I suppose it also ...
user avatar
3 votes
1 answer
277 views

Piece in Lego 21327 Typewriter Step 26 can’t be flush as depicted in the illustration

When sliding part #6327028 down the left three rods as depicted in step 26, that piece becomes snug with the gray spacer piece from Step 25, but there’s a gap on the two left rods. The 1x5 black ...
user avatar
10 votes
0 answers
212 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 ...
user avatar
11 votes
1 answer
2k views

Cargo bike brick identity

Looking to identify the box pieces here:
user avatar
3 votes
0 answers
121 views

Attaching a laptop to a table

I want to give my minifigs a few laptops. Specifically, 62698 "minifigure utensil, laptop"s: I've seen laptops in sets and MOCs, but always either (a) closed, being held in a minifig hand ...
user avatar
  • 4,669
-2 votes
3 answers
259 views

Why does this "useless machine" use out of production parts?

I found this new video. It uses out-of-production parts like the transmission parts. So when I tried to buy these elements in new Technic sets, I didn't find some of them. Any suggestions please?
user avatar
  • 257
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 ...
user avatar
  • 181
5 votes
1 answer
256 views

Saturn V build step 124

Step 124. Having some difficulty from the diagram figuring out how to orient each of these four pieces. Can't figure out if the light grey nozzle is suppose to snap into the bracket shown in step 123. ...
user avatar
8 votes
2 answers
526 views

Align 2xX plate on "sandwiched" brick (height of 5 plates)

I'm using "baseplates" for my builds which are built by using two 16x16 plates with one brick height between them (to connect multiple baseplates with Technic bricks and pins). Now I'd like ...
user avatar
  • 345
19 votes
1 answer
2k views

How is the roof on this bridge town formed?

I recently came across this build from Markus Rollbühler: It includes many great details and building techniques. I'm curious how the conical tower roof is formed, though: It's obviously made using ...
user avatar
  • 34.5k
5 votes
1 answer
478 views

LEGO Bugatti Issues

This is my first post and my first LEGO set. I recently built LEGO Bugatti Chiron with all the features working. I am however having an issue with the rear axle/wheels. The rear brake calipers fall ...
user avatar
  • 51
2 votes
1 answer
180 views

Box seals: Two arrows instead of 4-digit manufacturing code, is this a fake?

I have bought a lego architecture 21001 "John hancock" from a website.But as the title, there is no 4-digit code on the sticker. Could you guys help check if the stick is not the original ...
user avatar
-2 votes
1 answer
197 views

Creating client logos and buildings

My colleague and I are looking to give our smaller customers a custom built company logo out of LEGO, and our 3 largest customers a model of their entire building. Can you give us some pointers on ...
user avatar
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 ...
user avatar
  • 503
6 votes
2 answers
240 views

How can I build the windows depicted in this image?

I am trying to figure out the building technique used in these windows. Does anybody know how to achieve those? Unfortunately I do not have pictures of the lower part. Edit: I only want it to look ...
user avatar
9 votes
2 answers
566 views

How can I build a Lego slope of this exact angle with ideally only legal techniques?

I'm currently building a functional Lego escalator that is minifigure-scaled and with staircases transitioning from flat platform to stairwell. Here's my progress so far: But with the design of the ...
user avatar
2 votes
1 answer
159 views

Where should the 76139 Batmobile roof pins land?

Lego Batmobile 76139. Could someone please advise whether the pins installed in step 445 should rest on top of or just in front of the stanchions installed in step 417 ?
user avatar
  • 331
4 votes
1 answer
211 views

What is this right angled piece with clip and how can it be used?

What element is this? What can it be used for?
user avatar
  • 34.5k
14 votes
1 answer
1k views

How does the LEGO Typewriter mechanism fit?

My wife is building the LEGO Typewriter set (21327). When she installs the gearbox mechanism at step 210, the whole thing jams when pressing the keys. I am trying to help her and have "unbuilt&...
user avatar
  • 331
5 votes
1 answer
115 views

Question about Batmobile 76139 build

What's the purpose of the hinge plates in Step 133? I ask because it got in the way when installing the side sections in Steps 222 and 231. I simply pushed it out of the way and everything was OK. ...
user avatar
  • 331
8 votes
3 answers
609 views

Alternative ways of attaching roller coaster wheels

While doing a bit of research about a mine track related question, I noticed that part 24869 "Wheel Roller Coaster" is meant to be used only with part 26021 to form a form a specific ...
user avatar
  • 4,669
8 votes
2 answers
975 views

Minimal mine track

I want to create a mine scene on a 32x32 baseplate. I want to run a train track across the front, and then about 12 studs into the mine. Then, I want to build a couple simple mining carts on the ...
user avatar
3 votes
1 answer
169 views

Building a window with the tie-fighter round dish

Is there an elegant way to build a round window with the Radial Cockpit Window? I've tried experimenting with vertical clip plates but it just ends up looking odd.
user avatar
5 votes
2 answers
114 views

What does 18853 (Friends flower) connect to besides 37695 (Plant stem with 3 leaves) or 11609 (Friends accessories star)?

What does 18853 (Friends flower) connect to besides 37695 (Plant stem with 3 leaves) or 11609 (Friends accessories star)? Is there a good way to attach it to common plant stems (3741) like this one:
user avatar
  • 474
19 votes
1 answer
3k views

Can the new road plates be used to build ramps or hills?

I have the new LEGO City road plates, and I'm wondering if they can be used to create ramps or hills. Here's the road plate system I'm referring to: Ramps and hills weren't easy to create with the ...
user avatar
  • 34.5k
5 votes
1 answer
1k views

Grand piano page 269 of instructions - are the gears suppose to stop after a quarter turn or keep going when reversing directions

The directions show the gears are suppose to move counter clockwise. When I follow the directions on page 268-269, and push the reverse button on the Lego power-up app for the Grand Piano, the gears ...
user avatar
2 votes
2 answers
165 views

Automating rotation of a block on a track

How do I rotate a block 180 degrees after an item (like a car or train) passes a certain point in a track?
user avatar
  • 21
19 votes
3 answers
4k views

Is there a catalog of Lego building techniques?

As a Lego noob watching Lego Masters, I spot certain techniques being used time and again, without any real explanation (Lego Masters is great for entertainment, but offers little to no instruction). ...
user avatar
  • 351
13 votes
3 answers
564 views

In LEGO: How to build a revolving magazine rack for 2x3 tiles?

I've been trying for months to come up with a design or parts for a 4-sided spinning magazine rack, like the old wire-style you would see in book stores. I need it to be fairly stable so I can put in/...
user avatar
  • 113
0 votes
1 answer
842 views

Are there any cases of Illegal Building in an official lego build?

I am defining illegal as it is in this answer, specifically the following Studs-on-side bricks cannot have their side stud in the hole of a technic brick Bricks mounted SNOT style onto Ehrling/...
user avatar
12 votes
3 answers
476 views

Train level crossing using 2021 road plates

I'm interested in integrating a train level crossing into a city layout using the new road plates, but I've been struggling to figure out the best way to do this. Here's an example level crossing for ...
user avatar
  • 34.5k
7 votes
0 answers
216 views

Digital tool for roller coaster physics

I'm currently working on a roller coaster MOC with a looping. I started physically building the MOC but quickly recognised that it is quite a mess to build something, tear it down rebuild it, etc. ...
user avatar
  • 549
4 votes
1 answer
155 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 ...
user avatar
7 votes
2 answers
653 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 ...
user avatar
  • 173
14 votes
1 answer
3k 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: ...
user avatar
  • 253
5 votes
1 answer
224 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" ...
user avatar
  • 474
4 votes
1 answer
134 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 ...
user avatar
8 votes
2 answers
816 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 ...
user avatar
  • 181

1
2 3 4 5
7