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79 votes
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How do I center a 2x2 plate on a 3x3 plate?

I saw this technique in LEGO's Disney Castle for offsetting parts of a column by half of a stud. You can see the column on the left in this picture is shifting half a stud above a 3x3 plate: Of ...
chicks's user avatar
  • 5,275
47 votes

How do I center a 2x2 plate on a 3x3 plate?

For centring a minifigure on a 3×3 plate, I would do the following (though it’s not exactly what you asked for): Arrange 2×1 plates with centre studs as follows: Add 1×1 panels for optical harmony: ...
Wrzlprmft's user avatar
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41 votes
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Can the new road plates be used to build ramps or hills?

I tried this out recently with the new road plates. Because the new system is composed of proper plates with connection points on the underside, this is fairly simple to do. It really comes down to ...
jncraton's user avatar
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31 votes

How can I get my motor to line up with a linear actuator?

The axle is misaligned by half a stud, so an obvious approach to this problem is offset your motor by half a stud. The technique of offsetting bricks by half a stud is known as AZMEP (from the german &...
IvanSanchez's user avatar
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28 votes
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Stained glass windows on The Throneroom of Cedrica

I see that this popped up on HNQ, so I wanted to expand on shoover's excellent answer with a build showing one way that this could be put together for folks that may not be as familiar with LEGO ...
jncraton's user avatar
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26 votes

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

A fan is just 1/4 of a drone, right? Check out this lego drone that actually flies, for inspiration. https://youtu.be/wUVvQk7XLd4 The blade part in question is 89509
Mr. Shiny and New 安宇's user avatar
25 votes

Is there a catalog of Lego building techniques?

Swooshable has a great collection of SNOT (studs not on top) and advanced techniques, it is probably the closest thing you will get to an online catalogue. They seem to have updated their SNOT ...
Ambo100's user avatar
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24 votes
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Is this an error in the updated Harry Potter Diagon Alley build/instructions?

The wall behind the shelving unit is not a standard wall built with regular LEGO bricks, but a panel, which is hollow on one side. The parts that are sticking out at the back of the bookshelf are ...
TheBrickBlogger's user avatar
23 votes

How can you make a hip holster for minifigs?

Three 1x1 plates, two 1x1 round bricks, and one 1x1 plate with clip.
Pubby's user avatar
  • 5,226
23 votes
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How can you make a hip holster for minifigs?

It's kinda chunky, but the best I can come up with is 42446 + 2555: + = It would leave a half-plate gap on one side if they only have 1 holster though, but at-least you keep the regular minifig ...
Alexander O'Mara's user avatar
22 votes

Cargo bike brick identity

That's not a single part. According to the instructions shared by the creator of that cargo bike on their twitter account, it's a combination of : 1 Black Plate, Round 1 x 1 1 Black Plate, Modified ...
Sander De Dycker's user avatar
18 votes

How do I center a 2x2 plate on a 3x3 plate?

If stability is not an issue, consider the following: Put a 4×4 dish on your 3×3 plate (yes, this fits): Put your 2×2 plate in the middle (in any orientation you like): If you want to centre your ...
Wrzlprmft's user avatar
  • 2,174
18 votes
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How to fill a vertical 1.5 stud wide gap?

Before I attempt to come up with an answer, let me share how I think through problems like this, as it might make it easier for others to solve problems like this in the future. We can see that the ...
jncraton's user avatar
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18 votes
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How is the roof on this bridge town formed?

At first, I assumed that this was a clever technique using something flexible like a net or tubing. After a bit of digging, I found a similar tower roof on a different build by the same person: ...
jncraton's user avatar
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17 votes

How do I center a 2x2 plate on a 3x3 plate?

Another soloution if rotational stability is not too much of a concern and you don't like having studs on show. Put a 1x1 plate in the middle of the 3x3 plate and surround it with 1x1 or 1x2 flat ...
Peter Green's user avatar
17 votes

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

The easiest way to do this would be to use a motor with a high speed (or gear up a lower speed motor) and then attach one of the larger propeller elements to it. You can probably build a custom prop, ...
jncraton's user avatar
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15 votes
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Why don't inverted brackets (99780) work in this SNOT 180 configuration?

The short answer is because the combined height of the two mini inverted brackets is greater than the interior space of a tile (or brick for that matter.) But you knew this already. I realize it isn'...
Mac's user avatar
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15 votes
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How does the Space Shuttle dock the ISS?

It looks like LEGO did not intend to make Shuttle attachable to ISS despite the statement. At least not with a stud-on-stud connection like the set is designed right now. As seen in picture below, ...
Alex's user avatar
  • 23.2k
15 votes

How does the play experience work in the City Missions sets?

I saw these on the shelf recently and wondered how they worked. TLG was kind enough to send me a copy to explore. The experiences for this set are available in the LEGO Builder app. The box itself ...
jncraton's user avatar
  • 40.6k
14 votes

What are some creative uses of the orange brick separator tool?

How about a Minifig scale playground slide? There is a connection point for an Technic Axle connector to provide the support for the slide and two stud connections to add a ladder.
Ambo100's user avatar
  • 17.6k
14 votes

Is this assembly legal?

The answer depends on your definition of "legal". In the strictest sense, it means "can be used in official LEGO sets", and in this case, this is definitely not legal, as the axle is not designed to ...
zovits's user avatar
  • 16.6k
14 votes

Why doesn't this Technic bar fit?

It will fit, see photo. But you have to keep in mind that the distance between the two horizontal beams is not 4 units but will be sqrt(6^2 - 4 ^2) (Pythagoras), or ~4.47 units (the length is the ...
Joost's user avatar
  • 8,043
13 votes
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Pattern for oscillation with LEGO Technic

What you're looking for is reciprocal motion, or to convert rotation motion into linear motion (and then back to a limited rotation). Building out the key parts of the fan head you have the following ...
Zhaph - Ben Duguid's user avatar
13 votes
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Pirates of Barracuda Bay 21322 - Is there a way to get the ship pirating-worthy?

The review over at Brickset mentions this exact modification: Pearl gold windows are fixed inside each gunport, preventing the deployment of cannons. While this seems slightly odd, the lattices can ...
zovits's user avatar
  • 16.6k
13 votes
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How to build this flower?

It seems to me this would be made something like pictured below. Obviously flower stems need to be rotated for better alignment and may need to attach an extra apollo stud brick to make some space. ...
Alex's user avatar
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12 votes
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What are good books for building techniques of LEGO Technic

In addition to Sariel's excellent book, I'd suggest Yoshihito Isogawa's "Tora no Maki" (Book of secrets) downloadable PDF book, and his Ideas books in print. All are full of clever ...
Philo's user avatar
  • 2,713
12 votes
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Cutting a LEGO baseplate

The easiest way to do this is to score the baseplate with a straightedge and knife. Once you've made a deep enough cut, you should be able to bend and break the plate where you've scored it. You may ...
jncraton's user avatar
  • 40.6k
12 votes
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Why do some LEGO City vehicles have tiles in their chassis?

I asked one of the set designers at LEGO, Samuel Johnson, on Twitter. Here is our conversation: This to aid in the building flow for children aged 5 and up. Easy to spot on the page, easy to find in ...
LegoSonicBoy's user avatar
  • 2,988
12 votes
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LEGO color discrepancies and tint variations

Unfortunately, this is common to several colors in the LEGO color pallette. According to this article on Eurobricks.com, The LEGO Group (TLG) made a change in the early 2000’s in how they make their ...
Phil B.'s user avatar
  • 16.9k
12 votes
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How is this kind of structure made?

Just to add a little to the answer by TheBrickBlogger, the blue piece holding the purple 1x1 slope is likely this one: Here is a really simple example of one of the many ways this can be ...
JohnnyB's user avatar
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