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23

One of the smallest pieces is the detachable handle on the 1 stud gear shift element. The black part in this complete lever:


21

The screwdriver is also very small, but I'm not sure it beats the lever handle. Also, one could argue it has to be detached from the tools wheel first. But if you buy second-hand lots, there's a good chance it would be detached, and it would easily escape through small holes. Similarly, the various plumes aren't very large either:


20

LDU stands for LDraw Unit - the basic unit of measurement in LDraw, the open standard for LEGO CAD programs, and map to the "Fine" grid setting in applications such as MLCad. Common measurements include: 1 brick width/depth = 20 LDU 1 brick height = 24 LDU 1 plate height = 8 LDU 1 stud diameter = 12 LDU 1 stud height = 4 LDU A ...


18

I had guessed that smallest piece I have owned is one of these (image courtesy peeron): It really is stupidly small (so small that I've lost the only example that I possessed). However, I have since discovered that the lever weighs less, and that the screwdriver will fit through smaller holes. Update: I've recently come across some of these: It's an ...


16

Standing The smallest area you can enclose a standing minifig in is just about 4x4x4 2/3 with the roof on: To reach this limit, you need to use the panels and windows to make room for the arms and more importantly the head, which is larger than a 1x1 brick. Seated To enclose a seated minifig in the smallest space, you will need to ensure that you've ...


14

For the short answer, Duplo studs are indeed taller than twice the height of a Lego stud. And don't rely too heavily on measurements you get from ldraw (and not just for Duplo). For a really long-winded history on this... First, note that when I authored the original Duplo parts I never actually measured them with a ruler or calipers, as there was no need....


12

this brick has always annoyed me, when sorting my bricks


11

LEGO Juniors sets use normal LEGO System bricks. In other words, they are exactly the same size as the "normal" LEGO bricks. However, the Junior sets are specifically designed for younger children. They often have large single-use pieces (for example, for walls or frames), and are generally very easy to construct. They also limit the use of small or ...


11

(Note: my HDD crashed recently and until I get that fixed I can't really make LDraw images. I did create one for this beforehand, but it's on the same HDD.) As jfyelle said the solution consists of using one LEGO element which has an odd ldu dimension somewhere. There is such an element, which isn't even new or particularly rare, that is, the Fence 1 x 4 x ...


10

This tiny tiara piece is smaller than the 1x1 round plate on all sides (middle piece in my image below).


9

I found CAD files for LEGO technic axles here: https://grabcad.com/library/lego-technic-axles-1 and some gears which have holes for technic axles here: https://grabcad.com/library/lego-technic-gears-1 Using their online viewer I found the following dimensions (Which are a little inaccurate due to the limits of their online viewers tools. For more accurate ...


9

Bricklink lists it as Technic, Axle 5.5 with stop The blue number is the length of the axle. It is mentioned in the part list to distinguish axles of different lengths in a set. In this case, the length is 5.5, so yes, it is written as 5,5 because of the locale.


8

A minifigure with legs, torso, and head would be five bricks tall standing or four bricks sitting down. It's also one stud deep and two studs wide (four studs including arms) With the arms and hands extended parallel to the thighs, the arms take roughly two and half studs worth of space from the joint of the arm. The image below show's a diagram of a ...


7

An alternative is the 94.8x44 balloon tires. While they are not as big as the ones elusive suggested, I imagine they are easier to get as they have been in some recent sets. Comparison: Left: 81.6x15 Middle: 94.8x44 balloon Right: 81.6x38 balloon


7

Robert Cailliau has summarized how dimensions of LEGO bricks derive from: The base measure 0.8mm (that's where the 1.6mm already mentioned derives from) The play measures 0.1mm (for additional space between pieces) The height of studs 1.8mm It looks like the number as the same as given in other sources, but there is disagreement about the height of a stud. ...


7

Minifigure hands are very small: (picture not to scale)


7

There is another piece with an odd LDU dimension: the 1x1 bracket is 3 LDU thick. Paired with an Erling brick, which has a 4 LDU offset built in, it's a very compact way to create a 1-LDU offset, like psiaki has done here: Then it's just a matter of translating the offset into a gap between bricks using standard bracket pieces like I have done here:


6

Just measured them myself. Some of the dimensions might be just a little bit off, but I hope this suffices: NXT: Length: 111 mm Width: ~71.7 mm Height: 40 mm (extra 8 mm if you have a rechargeable battery installed) Motor: Length: ~105 mm Width: 40 mm Height: ~45 mm Ultra-sonic Sensor: Length: 44 mm Width: 44 mm Height: 30 mm Generic Sensor: ...


6

One Single Stud Lego brick is 9.6mm H by 8mm W (technically 7.8mm). So at the scale you are looking for we're searching for single stud bricks that are 28.8mm H by 24mm W. After an extensive search among multiple Lego-style building block manufacturers, I can't find any that use the dimensions we're looking for. Here is a list of companies I searched: ...


6

About 3g (2.98g) Based on a small sample of Minifigure part data provided by Bricklink, a minifigure in it's most basic form (Head, Torso Assembly and Legs Assembley) weighs about 3g. A small hairpiece or cap will add about 0.3g - 0.4g Large hairpieces/headgear can add about 0.9g - 1.0g.


6

You can derive detailed part geometry using the LDraw parts library. LDraw provides freely accessibly models for nearly every part that Lego has produced. I'd recommend parsing these parts rather than rolling you own models if you're going to be using many parts. Here is the relevant content of the file representing a 1 x 1 round plate: 1 16 0 3 0 -1 0 0 0 ...


6

I assume you mean L when you say units? Well anyhow, unless im misunderstanding, I would try these: https://www.bricklink.com/v2/catalog/catalogitem.page?P=6575 You can stack 3 of them up to get 1 and a half L If you mean 3L long instead of wide however this should still work because it has an axle hole which is 1.5 apart, it also has axle holes that are ...


6

If you mean specifically Lego bricks, I'm pretty sure the 1x16 was/is the longest one made. Outside of the 1x? sized bricks, the longest plain shaped brick that I know of is part #30072 or #47122 at 24 studs long. I don't know about other brands though. Interesting related post: What is the largest single LEGO piece?


6

You didn't say anything about modified 1 x bricks. This is Item 47978 and it is actually listed as a 2x24 brick, because of the added bit in the middle.


6

This technic rack is 1x20 and is exactly 1 wide, no hanging out bits https://www.bricklink.com/v2/catalog/catalogitem.page?P=2428#T=C


5

The treasure coin (70501): I think its one of if not the only element that doesn't connect to any other element.


5

The precise measurements with an easy to understand technical drawing is available here. A PDF with the all the dimension is available for download.


5

The sloped face of the 2x2 brick is 16mm across by about 11.3mm tall.


5

I have a micrometer for measuring with 0.1 mm precision. Using that I measured following lengths: diameter of top cylinder (stud): 4.9 mm diameter of lower cylinder: 6.4 mm diameter of middle ring: 7.9 mm height of middle ring: 1.0 mm total height of the plate: 5.1 mm inside diameter of lower cylinder: 4.9 mm (no surprise) Can anyone confirm or question ...


5

Bricklink has this information for most sets. If you search for the set number, you get several entries. The top one is the entire set, and has the weight for the full sealed box with parts and instructions. Then there are two more entries, one for the Instructions and one for the Box. See here for an example using set 41314 Stephanie’s House. If you go ...


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