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19

In the 60s, Lego did produce a separate system for architectural modelling called Modulex which used a 1:1 ratio 5mm cube as its basic brick. It wasn't successful and was discontinued in the late 60s. I believe the 6:5 was chosen so that studs could fit into the geometry. Related: why the plate is 1/3 of the brick's height. By adding two plates to the ...


19

I did the unthinkable! ...I had to know. I opened one of my two weighted bricks. One of the two ends has a glued on cap that I've cut around using an utility knife. The piece of metal it contains fit almost perfectly in the cavity. I don't know metals but it has a rainbowish kind of sheen to it. Here's a close up: I'm now gluing it back with ...


17

The problem here is that fans started to name parts way before LEGO started to make its internal part names a bit more public. As such, there are various naming conventions around, including: LDraw — the oldest, used by peeron and in all LDraw-based CAO programs (which is to say, most of them); BrickLink — Generally uses the same names as LDraw, with a few ...


15

As said, this is the point where the injection happens, usually known as a gate. Sometimes, LEGO tries to have in a non-visible place, but the process of moulding is extremely complicated and forces specific requirements on the gate placement which mean it's sometimes impossible to hide it. The basic rule of thumb is that the gate is usually near the center ...


15

Usually, the LEGO group doesn't seem to have much organisation; at least in the past. That's why you can find sets with two different numbers, or two different sets with the same number. Now the keyword here is "seem", as I suppose there was some logic to it even in the past. But nowadays there is some logic, and even if not all of it is understandable, ...


14

The ridge is there to make the base the standard 5LUs wide (see also "What is an Erling Brick"), enabling it to accept the standard stud. I believe the rest of the brick was thinned out so that the combined "depth" of the Erling brick and a 1x1 plate (its common usage as a headlight) was the same height as a standard brick. From the HoMa's World of Bricks ...


13

This image from Brickipedia should sum it up nicely: A plate is exactly one third of a brick in height (3.2 mm as in the diagram). In other words, 3 plates stack to match the height of a brick. This is useful to know if you're short on a certain size of brick, but have enough plates of the same shape and color to cover it in height.


13

From principles of molding, you want a uniform part thickness throughout if possible. This facilitates plastic flow as well as dimensional stability (you want uniform shrinkage on cooling.) Removing a divot from the underside of a stud serves this purpose in a regular brick. The Technic brick with through holes would have had a large amount of solid ...


13

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:


13

In most cases you can find the weight of a brick from Bricklink an unofficial LEGO site that takes weight measurements from user submitted data. Bricklink states the 1x4 brick as 1.64 grams in weight. LEGO bricks tend to be odd weights because the design process primarily focusses on the physical aspect. A 1x8 and 2x4 brick both have exactly eight studs, ...


13

The studless have SEVERAL advantages over the studded design especially when you want to include moving parts. Just the clearances between connections is important. Sariel sums it up in his book well. He says there are advantages to both systems (stud-full, for example, are more rigid) but the fact that the stud-less look more realistic and, of course, the ...


13

The full-base 1x1 round bricks were produced from 1955 until 1963, during the period when LEGO pieces were made from cellulose acetate (CA) plastic, but were sold until about 1966. According to Gary Istok's Unofficial LEGO Sets/Parts Collector's Guide the solid-stud full-base 1x1 round brick was only ever made from CA plastic. After the supply of them ran ...


12

In my opinion, you don't need to look further than plastic quantity, and thus cost. Take a normal brick or plate (easier) and look inside it. You'll notice that each stud is hollow, but from below. Why? Simply because there's no need to have it full with material as it serves no purpose. It's easy to make the mould that way, it doesn't remove any ...


12

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


12

The regular connector have simple angles which are multiples of 22.5°. #4 is 45°, #3 is 22.5° and #5 is 67.5°. That's pretty boring stuff, but there you go. The 53.5 angle isn't as bizarre as you would think and there's a very good reason for it (and less boring to me, but YMMV). That reason is that it forms a Pythagorean triangle, and specifically the ...


11

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 ...


11

I guess I could send the question to math.se, but I think we can figure that one out ourselves; it's just a bit of trigonometry after all, right? Let's see: - The large side is 20 ldu (standard brick width). - The small side is 16 ldu (2 plates) - 4 ldu (half a plate), that is 12 ldu (half the height of a brick). So the angle is tan-1(12/20), which is ...


10

Most elements will have their official "Design ID" imprinted on them - this is typically the longer number, and can usually be used on the Pick a Brick site or sites such as BrickLink and Peeron to track down additional bricks. Note that this is different to the "Element ID" that is printed in the instruction part inventories which has the colour encoded ...


10

The problem isn't with molding machines, but with storage. Every distinct element (part/colour combination) has to be stored until it's no longer going to be used in production; presumably some are stored for spare parts and other ancillary uses. The robotic warehouse has only a certain number of slots (a mere 0.5 million), so there's only so many ...


10

I would tend to say that any part produced for only one set would qualify, especially if said set is priced high. Looking at the inventory of 10179 Millenium Falcon UCS for example, the following candidates come to mind: Light Bluish Gray Boat Mast Rigging Long 28 x 4 Dish 10 x 10 Inverted (Radar) with Radiating Spokes Pattern on Concave Side although it's ...


10

Although I can't think of any sets that make use of this technique, I have found that the Slope, Curved 4×1 Double No Studs fits perfectly under the new-style arches.


10

Bricklink lists two: OLD: http://www.bricklink.com/catalogItem.asp?P=6007 NEW: http://www.bricklink.com/catalogItem.asp?P=96874 There is one other 'separator', but it doesn't look like it's very good for bricks: http://www.bricklink.com/catalogItem.asp?P=x1220 ETA: The Clickits Separator! http://www.bricklink.com/catalogItem.asp?P=clikits021


9

I grabbed an image off google that shows a basic molding process: As others have mentioned, the location of the gate is where the liquid plastic flows through into the cavity, and this is the mark that you are seeing. Some times these markings can be polished or sanded away, but for Lego, that would probably effect the texture of the part, so they can't ...


9

from the german wikipedia entry (translated with my poor english-skills): The Federal Court of germany opened the market for LEGO-like bricks on december 2nd 2004 The European Court of Justice decided in september 2010 that LEGO-Bricks can be copied as they aren't protected by patents anymore so at least in europe there doesn't seem to be a problem in ...


9

There's a YouTube video which explains how you can replace the battery in that light brick. You can also find the owner's explanation on the Eurobricks forums. Quoting from that site: What you'll need: ExoForce Light brick (obviously) A small screwdriver (or other item with a long, thin shaft) (my s'driver was 2mm (0.07 inches) thick) A ...


8

The first LEGO axles were milky white and were probably made in a different plastic than they are now. Later on, LEGO started making all-black axles when they started doing more serious technic sets. However, the tendancy is now to make sure all difficult technic pieces are "color-coded" so that children can pick them out more easily. As such, nowadays, the ...


8

Bricklink search for chrome pieces Gold 2x4 Duplo: Chrome 2X4


8

I found the answer while I was writing this question, but I'm posting question and answer just for dibs on the bionicle tag ;) The Peeron page for that mask I just linked to lists the part number as 32571. I do a search for the part number, and come across the Brickipedia page for that part. Scrolling down, I find the source: Transparent: 8525 ...


8

A brief search led me to a very thorough blog post by Ruth Suehle on GeekMom, which includes the data and a Graph: Does It Feel Like Lego Bricks Just Keep Getting More Expensive? In her findings, she found that average cost per piece in 2011 is about US$0.12, down from a high in the '80s of about US$0.40 - these prices were adjusted for inflation, etc. ...


8

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 ...



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