Questions tagged [building]

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

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-1 votes
3 answers
119 views

Are there any flat plates with beveled or sharp edges?

I'm currently making a functional minifigure-scaled escalator that ideally move like this. Progress has been made on both the stair slope and staircase design (both respectively pictured below), and ...
3 votes
1 answer
418 views

Lego 21327: How do I attach the typewriter segment to the body?

Typewriter build step 312. Red arrows point to two upraised open connectors. What part of the segment snaps into them? If snapped to the rod outside of the two gray mid-rod spacer pieces (step 309), ...
2 votes
1 answer
103 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 ...
5 votes
1 answer
157 views

Mistake with hook holder (steering arm with round socket) on Technic Helicopter 42145

I made one small (but costly) mistake in my otherwise very satisfying build for the Airbus helicopter: at step 66, I connected the grey piece "steering arm with ball socket" the wrong way. ...
3 votes
1 answer
241 views

Salt Lake City Temple: Temple doors

I'm building the lds temple in Salt Lake City in lego. I'd like to represent the temple doors as seen here: My current plan is to use the stockade as the base door: ...and probably put a plate over ...
8 votes
1 answer
131 views

Best method for building large by assembling modules?

I am about halfway in building a 16 foot high tower made of simple bricks. It is basically a hollow skyscraper 6 inches square, with the walls two studs thick. To steady it, it is built around a steel ...
6 votes
2 answers
2k views

Can one connect two technic pins end-to-end?

Who hasn't tried following some MOC instructions only to discover problems? This TIE Outlander build (free instructions) is neat but has several issues, the biggest of which are steps 44-46. The ...
  • 171
2 votes
1 answer
119 views

In the Ferrari 42143 build at Stage 85 should the yellow assembly be loose?

I have gone beyond step 85 but the yellow assembly installed then is still loose, not connected to anything and can be pulled out. I want to make sure this is right as I do not want to go much further ...
  • 443
2 votes
1 answer
162 views

Salt Lake Temple: Downward facing triangles

Another question in my SLC temple series: How can I replicate the downward facing triangles in the stonework of some of the spire/columns. Currently I'm planning on just using cheese slopes but those ...
5 votes
0 answers
156 views

Converting Nanobocks builds to LEGO

Had anyone attempted and had any success in converting a nanoblocks build to use LEGO bricks? On the horizontal plane, the nanoblocks bricks seem to be half the size of LEGO bricks (4mm x 4mm versus ...
3 votes
1 answer
112 views

Lego D11 ripper cylinder

I'm building the Lego set 42131 D11 bulldozer and my back ripper cylinders (linear actuators) are in the complete up position and it's keeping me from completing the build. How do you get them to go ...
5 votes
0 answers
99 views

Question about "Arch 1 x 2 Inverted" [duplicate]

So, I'm creating round windows for my temple build. My current approach uses 2 1x4 arches (the stubby kind) with one of them upside down and some complicated mechanisms for keeping it in place. ...
15 votes
2 answers
927 views

How to build this flower?

I found this picture of a flower in a book and would like to build it. I'm wondering what's inside the white bloom?
  • 153
5 votes
1 answer
227 views

Is a huge box of old unsorted Lego and non-Lego pieces with no instructions or boxes of any value?

I have an old big bin of at least 20,000 Lego and Lego-like pieces. I never kept the boxes or the instructions when I was finished building sets and I have Lego pieces from at least 50 different sets, ...
4 votes
2 answers
171 views

Salt Lake City Temple : Spires

I'm trying to plan the tops of the spires for a lego replica of the salt lake city LDS temple. Here's a picture: I figure I can use a technic ball joint for the round parts, or a ski pole for the ...
3 votes
1 answer
867 views

Has anyone else had problems with the tail rotor drive shaft on the Lego Airbus Model 42145?

I am partway through this build and at step 565. I have found the drive mechanism to be very tight and have tried to loosen the drive elements as much as possible. I have found what I think is a ...
  • 443
4 votes
2 answers
195 views

Salt Lake City Temple : side tower windows

I've been challenged to build the Salt Lake City LDS Temple. I've made some progress on the main wall, but the side towers are a bit difficult. Can I get some tips on how to make the dark slit in ...
1 vote
1 answer
99 views

Falcon Shield Attachment

If I want to attach the Falcon shield to a wall, what kind of attachment do I need? I suspect I need a horizontal clip but I'm not sure.
8 votes
0 answers
102 views

How to effectively attach mirrored stickers to an interior curved surface?

I'm working on 10283, Space Shuttle Discovery and I've reached pack 13 step 282 where I'm assembling the cargo bay doors. These doors have reflective stickers that attach to the insides of the curved ...
7 votes
1 answer
914 views

Help with Lego Typewriter 21327 - can't get the carriage mechanism working

Two AFOLs here who are stuck on the Lego Typewriter build. We have built large and complex sets before, but this one has us stumped. We have now rebuilt Sections 5-7 twice, but we can't get the ...
  • 71
1 vote
1 answer
574 views

Cat D11 LEGO set won't start the calibration process

As soon as I start the calibration process in the app, the gearbox jams. It doesn’t do anything, just clicks and clicks (stripping the gears). Any ideas what the cause might be?
1 vote
0 answers
72 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?
5 votes
2 answers
251 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 (...
  • 6,717
9 votes
1 answer
287 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 ...
  • 6,717
2 votes
0 answers
92 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.
3 votes
1 answer
359 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 ...
4 votes
1 answer
926 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 ...
  • 41
1 vote
0 answers
88 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?
  • 111
7 votes
1 answer
271 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 ...
5 votes
1 answer
508 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. ...
  • 231
4 votes
1 answer
166 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)
  • 41
5 votes
1 answer
473 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 ...
17 votes
6 answers
15k 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 ...
3 votes
1 answer
506 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 ...
10 votes
0 answers
254 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 ...
11 votes
1 answer
2k views

Cargo bike brick identity

Looking to identify the box pieces here:
3 votes
0 answers
126 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 ...
  • 6,717
-2 votes
3 answers
280 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?
  • 391
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 ...
  • 181
5 votes
1 answer
367 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
536 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 ...
  • 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 ...
  • 37.4k
5 votes
1 answer
620 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 ...
  • 51
2 votes
1 answer
183 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 ...
-2 votes
1 answer
202 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 ...
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 ...
  • 503
6 votes
2 answers
255 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 ...
9 votes
2 answers
852 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 ...
2 votes
1 answer
160 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 ?
  • 443
4 votes
1 answer
218 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?
  • 37.4k

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