Questions tagged [piece-usage]

Techniques and tips for using special elements.

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9
votes
4answers
3k views

6x6x6 cube with smooth plates on bottom?

Adult, returning to Legoland and the world of LEGO. I'm interested in building a static 6x6x6 cube that is smooth on all six sides. I can see how to get the top smooth, using an appropriate build up ...
9
votes
3answers
1k views

Why doesn’t part 30099 fit into the System?

Part 30099 - Brick Arch 1x5x4 Inverted doesn’t seem to fit into the LEGO system. I cannot find a part that fits on the bottom stud and provides continuity to the concave slope of the arch. A tile is ...
24
votes
4answers
9k views

How can my daughter turn her horse into a unicorn?

Short of gluing the horn to the purple bow, which fits in the horse’s forehead, is there a LEGO piece that would enable her to connect the horn to the horse?
12
votes
2answers
2k views

How To Make a Small Security Camera?

I’m looking to make a wall mounted security camera in LDD to mimic this one: https://icdn5.digitaltrends.com/image/digitaltrends/swann-4k-9f-768x479-c.jpg Any clever ideas? It needs to be angled down ...
6
votes
1answer
86 views

What is the use of a single ultrasonic signal?

The EV3 ultrasonic sensor has an advanced mode that includes an option to use single or continuous sensing as described in the Help page: You can choose whether the sensor sends a single ultrasonic ...
2
votes
1answer
144 views

What’s this gold helmet piece and is it rare?

I don’t know what this piece is and where it’s from
4
votes
1answer
276 views

How To Deal With Hydrogen Peroxide After De-Yellowing?

I was able to remove the annoying yellowing effect from old white and lightgray bricks with the usage of hydrogen peroxide. With great results I have to say. Now I wonder what to do with the remaining ...
2
votes
1answer
565 views

Is it possible to sand/polish LEGO bricks?

I have an old white and rare brick which got scratches and dirtying which I cannot wash away. Any ideas on how to clean it? I thought about fine sanding or polishing but I am afraid that I damage the ...
11
votes
2answers
471 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
votes
7answers
414 views

What Lego part(s) would hurt the most to step on?

We've all heard (and probably experienced) the long-running joke that stepping on a Lego is the absolute worst. People have determined this is due to the bricks' high compressive strength, small size,...
4
votes
1answer
159 views

Minifig wrist attachements?

I'm looking to attach a weapon to a minifig's wrist ala an Assassin's Creed hidden dagger (https://www.brickwarriors.com/hidden-blade/) or a wrist-mounted crossbow. What are my options to do this?
2
votes
1answer
138 views

What are the common uses of the roof pieces in the Sydney Opera House set?

The Sydney Opera House set comes with many curved white pieces to form the roof. I am concerned about whether buying this set will leave me with useless parts that cannot be easily applied to other ...
5
votes
1answer
3k views

What's the purpose of the decoration on the BrickHeadz piece?

I just bought a BrickHeadz set (the Captain America one) and it comes with a piece to put on the models base. The part number is 6188632 and is described on a few sites as a black 2x4 with decoration. ...
5
votes
1answer
496 views

Brick-built sails for a pirate ship

I am building a Sea-Cow(70810)-like ship that of course needs sails. The sails should be larger than the Technic fairings used in the LEGO movie set, but I want to avoid cloth sails and strings. My ...
4
votes
1answer
209 views

What set is this dark grey remote with orange buttons from?

This is what the front looks like: This is what the back looks like, I'm 90% sure it says 4272 at the top: This is the remote control of a set I got ages ago, when I was still a little boy. I lost ...
13
votes
2answers
930 views

Why was the original brick separator changed?

The old brick separator seemed indestructible, and would separate all bricks that I had without fail. This orange thing is dinky and flimsy compared to the others. So, I ask, why did LEGO think that ...
6
votes
3answers
219 views

Challenge: Specialized Palm Build

I'm trying to design a hand for a MOC using the (not so) new Mixels ball joints, in line with a concept that I've had rattling around in my head for a while. The current palm design I'm trying uses ...
3
votes
1answer
293 views

What piece is designed to hold the “drawer” piece?

Cruising the good old PAB, I come across a piece called simply, the "drawer". From the image, I can conclude that this piece is meant to act like a real drawer, by pulling out of something. Question: ...
3
votes
2answers
98 views

How to tape something to the bottom of a brick

I'm installing lights in my buildings (I'm using Neopixel strips, which have a flat back), and I'm trying to tape the lights to the ceiling. Of course, bricks and plates aren't smooth on the bottom, ...
0
votes
3answers
221 views

LEGO model of USB socket?

I am looking to make a LEGO version of my laptop. Is there a LEGO brick or set of LEGO bricks that would form a USB socket?
6
votes
3answers
872 views

Is there a way to set a flat plane at an angle to horizontal of less than 22.5 degrees, but more than 0?

I am building an airplane with a wing dihedral (the wings angle upwards from the fuselage), but I am using parts 44302 and 44301 interlocked as designed: Unfortunately, one click up is about 22.5 ...
1
vote
2answers
115 views

What kind of design is comparable to these programming concepts?

I understand this may sound like a weird question, but bear with me here, OK? I'm getting ready to teach some kids introductory computer programming. We're going to use Scratch, a drag-and-drop "...
14
votes
1answer
2k views

What's the purpose of the clutch gear in Power Functions set?

I have just bought this set and wonder the purpose of the white gear in the middle: How can you use it in your Lego Technic projects? Is it available in other sets?
7
votes
1answer
338 views

How can the “Bar Holder with Clip” part be used?

I'm wondering whether the "bar holder" end of this element (http://www.bricklink.com/catalogItem.asp?P=11090) can be used as a stud. In other words, would it have enough clutch power to hold e.g. a ...
10
votes
4answers
430 views

Was it once possible to put a 1x1 round into a minifig cup?

I remember being able to put a 1x1 round brick into the top of a minifig cup before my dark age (the period of time that a person stops building with Lego, up to the time they pick up the bricks again)...
10
votes
1answer
583 views

Why are 2/3 height bricks with studs on the side 2 studs deep?

This question is regarding the 2/3 height bricks with studs on the side. The two that I am aware of are 99206 and 87609: If you haven't seen them before, these are functionally somewhat similar to ...
15
votes
1answer
542 views

Why are minifigure wrenches tapered at the end?

The common minifigure wrench is tapered at one end. Why? None of the other minifigure tools are shaped this way. Is the wrench meant to also serve as a minifigure pry bar? Or perhaps as some sort ...
6
votes
4answers
3k views

What other uses are there for pull-back motors?

Sets 42010 and 42011 feature a pull-back motor. They have a very high torque for a very small numbers of turns, they then free-wheel. I'm trying to find alternate usage for them. That is anything but ...
13
votes
1answer
4k views

What is the best-practice for circular lego staircase construction?

Aside from using the grey key-hole shapes, I'm looking for a Lego-standard or best-practice method for building a circular Lego staircase? Requirements: 6-8 studs "wide" (from the center to outer ...
6
votes
1answer
363 views

I found this piece in a yard sale grab bag. What other elements do I need to make it work?

I found this piece in a yard sale grab bag. What element(s) do I need to make this element function as it was originally intended?
16
votes
3answers
1k views

Which Duplo bricks have practical uses in System building?

Traditional 2x4 and 2x2 Duplo bricks can be used to bulk out models and provide a structural support for landscapes, but have there been any other uses for Duplo bricks of all shapes and sizes in ...
9
votes
3answers
4k views

Can Lego soccer (football) parts be used for anything other than soccer?

I had the Lego soccer field, but took it apart. What else can the parts be used for besides soccer? I'm specifically wanting to know about the green bases and minifigure stands.