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16 votes
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What's the smallest LEGO component, based on its largest dimension?

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

What is LEGO Junior?

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....
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12 votes

What are the dimensions of a LEGO brick?

The precise measurements with an easy to understand technical drawing is available here. A PDF with the all the dimension is available for download.
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  • 151
12 votes

How tall is a Lego train on a track?

LEGO tracks are 12mm high, train wheels go below the true height of the track and so in reality only add 7mm of height. The structure gauge (also known as clearance) tolerance will obviously be a lot ...
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10 votes
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What are the dimensions of a technic axle?

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 ...
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  • 1,871
10 votes
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What are these numbers for this element name?

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, ...
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  • 2,513
8 votes

What is the maximum size of Lego instruction booklets?

While there are multiple sizes of instructions and lack of database with dimensions my answer is based on personal observation. Looking at the stash of my instructions from multiple sets (including ...
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  • 20.1k
7 votes
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Any (small) Lego Technic parts not in whole units?

I assume you mean L when you say units? Well anyhow, unless I'm 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 ...
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6 votes

Round Plate 1x1 Dimension

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 ...
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  • 34.5k
6 votes

Which are the largest LEGO ships that actually float?

The largest LEGO ship that officially floats in water is the Cargo Ship that comes in 7994-1 LEGO City Harbor: It is the only set which contains the 74 x 18 x 7 Boat Hull, which is the largest boat ...
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6 votes
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How much does a LEGO character weigh?

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 ...
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  • 17.3k
6 votes

Are there bricks sized between LEGO (classic) and DUPLO?

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 ...
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6 votes
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Dimensions of Mindstorms NXT pieces

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 ...
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6 votes

What is the smallest LEGO component?

The treasure coin (70501): I think its one of if not the only element that doesn't connect to any other element.
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  • 61
6 votes
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What is the longest 1×x brick ever released?

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 ...
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  • 3,214
6 votes

How tall is a Lego train on a track?

Several of the trains include a diagram showing their size: It obviously varies somewhat from train to train. Somewhere around six inches or 16cm should be sufficient for most trains.
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  • 34.5k
5 votes

What are the dimensions of LEGO 10221 Super Star Destroyer?

So the box says 49 inches long, the official description says "under 50 inches long". I just measured the width (about 13.25 inches) and height (about 9.5 inches) on my assembled set. So a rough ...
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  • 3,199
5 votes

How large is the face of a 2x2 45º brick?

The sloped face of the 2x2 brick is 16mm across by about 11.3mm tall.
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  • 2,858
5 votes
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What is average weight of booklets (instructions) in %?

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 ...
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  • 16.5k
5 votes

What's the smallest LEGO component, based on its largest dimension?

You'll have to ask my vacuum cleaner, It might have escaped me ;). It depends on what qualifies as "Lego component", though. Made by Lego for Lego would be one of the obvious restrictions, I assume. ...
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5 votes

Round Plate 1x1 Dimension

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....
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  • 2,513
5 votes

What is the longest 1×x brick ever released?

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.
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  • 2,458
5 votes

What is the longest 1×x brick ever released?

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
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  • 3,231
5 votes

1/3 of 4 studs wide possible?

I think you are looking in perspective at a digital render of a tower base that has 1x2 blue bricks on each side (1 wide) with a 2x2 lime brick in the center. It only appears to be 1/3-1/3-1/3, but is ...
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  • 16.5k
4 votes

Hanging template for Large Minifig Case

Since no answers were given for two days, I'll convert my comment to a full answer: If you haven't found anything yet but have access to a photocopier, you could try making a copy of the back side ...
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  • 13.9k
4 votes
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Groove dimension of 4216 or 88393?

According to LDraw, the slot is 8 LDU wide (1 plate, 3.2mm) and 5 LDU deep (quarter module or stud, 2.0mm). Here's the relevant quads from the LDraw file for reference:
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  • 34.5k
4 votes
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Ain't no mountain high enough... - what is the tallest LEGO piece?

No restrictions on the materials. Well then, probably a component to the old wooden furniture LEGO used to produce, like these: 5003483 - 3-Seat Playtable Creative Play Station Center Pack Duplo Or ...
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3 votes

What are the largest Technic-compatible tires on the market?

I personally have the Lego Group 62.4 x 20 S tires which came with the Lego Creator 7291 2-in-1 Motorcycle kit.
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3 votes

What is LEGO Junior?

Lego Juniors is fine for 3-year-olds who know not to put toys in their mouths. My son, when he was three, was playing with regular System Lego (of which Juniors is a subset) and it was okay. If it's ...
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3 votes

Are there bricks sized between LEGO (classic) and DUPLO?

While I don't know the answer for sure, as I don't know every construction brand out there, I see enough problems with the brick size you mention that I doubt anyone would manufacture it. Children ...
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