35

According to this website, LEGO bricks are made from a type of plastic called acrylonitrile butadiene styrene or ABS. We do have the technology to recycle ABS, however you would need to check with your local/national waste disposal service whether it is in use. Dropping unwanted bricks off at a local charity bin or childcare provider would certainly be the ...


16

My 7190 Millennium Falcon kit has a mistake where the inventory for the page doesn't include two pieces on it. So, invariably, when I'm building it I forget to include those two pieces, and they are left over until the very end, at which point I have to follow this process: Say "Dammit" Flip backwards through the booklet to find the page that last added ...


12

(fair warning: I work for a 3D printer company [Type A Machines]) I thought this cross-posting up on the RepRap forum would be useful here. Summarizing that post: It is possible to 3D print LEGO-compatible parts on desktop 3D printers, but with caveats: The fit will likely never be as tight as real LEGOs. Those are tough tolerances to match. LEGO Corp ...


11

This may not really qualify as an answer, but basically I believe designers are responsible for calling for new parts. For each new part, a production cost is calculated, which takes into account a lot of factors. There were talks a few years back about how they had recently changed these rules, but they aren't public (to the best of my knowledge). What is ...


10

The number of parts shown on the box of the LEGO set indicate how many parts are included without the spare parts. Spare parts tend to be added for the smallest pieces of a set that can be lost easily. Spare parts tend to be fairly consistent between identical sets regardless of where they are sold and sets with a greater amount of parts will generally have ...


10

LEGO have made mistakes several times in the past and will continue to do so, (as is the norm for a toy manufacturer of it's scale.) I can only speculate that the best way to ensure instructions are correct would be to build the model. Following the instruction as you build you're able to pick up more than just missed steps.


10

According to a letter from a LEGO representative posted at this site: Tires and elastic materials found in some LEGO sets are manufactured from Styrene-Butadiene Styrene (SBS), a material commonly found in vehicle mud guards and shoe soles.


9

Yes, is it definitly possible. However, as this page states: Producing physical prints from our provided 3D models prompts certain fabrication considerations. According to Wikipedia, the precision of Lego pieces is less than 10 microns. As of early 2012, however, standard Makerbot printers have an XY resolution of 100 microns (0.1mm) and a default layer ...


9

I will start by saying I do not own any of the LOTR sets. But, Bricklink has inventories of many sets including any extra pieces that were included with the set. You do not mention which specific sets you own, but here is a link to the 9474 The Battle Of Helm's Deep inventory on Bricklink. It lists a total quantity of 6 extra pieces (5 unique). You could ...


9

Moulds are maintained in-house. As you say, the moulds are at the very core of the business of the LEGO company and are thus treated with all the seriousness you can imagine. Considering also that some moulds are in effect trade secrets by themselves (especially for parts which aren't publicly known yet), LEGO wouldn't want any of them to exit the company. (...


9

I don't know if there are any particular issues with manufacturing 1 x 4 bricks in Dark Red, but I suspect not. Instead, to understand why dark red 1 x 4s are relatively rare, it is interesting to consider why other colours might be relatively popular. Popular Colours Younger children like strong primary colours + black and white. At the same time, older ...


8

There are more antistuds based on your description, you have to account for the flat bricks that have no studs and any sloped bricks that have at minimum twice the number of anti studs. While there are the inverted sloped pieces the standard wider bottom are more prevalent and there are more variations in length and width. Also many of the flat wing pieces ...


8

The term acrylic is used for many mediums, like acrylic paint (liquid), acrylic fiber (clothing), acrylic rubber (flexible) and acrylic glass (really hard). So, as you see, it is possible to make those capes out of a type of acrylic material.


8

LDview can directly export LDraw files to .STL. But the problem is that the mesh obtained may not be suitable for 3D printing, many of LDraw parts are not "watertight", or contain surfaces inside the part volume (eg. studs are simply lain on flat top surface).


8

I suggest calling Lego customer service (1-800-835-4386) to ask them about a bulk order. Professional "brick artists" like Nathan Sawaya buy their brick directly from Lego. The bulk prices are decent as well. For example, through the LUGbulk program, we got 2x4 bricks for about 9.6 cents each (these sell for $0.30/ea on the Pick-a-brick website). Also, here ...


8

LEGO baseplates are made from ABS plastic, like most of the opaque rigid plastic LEGO elements since 1970. ABS is a thermoplastic consisting of a styrene monomer with the addition of an acrylonitrile momomer and a butadiene monomer. There is no PVC or vinyl present. I suggest reviewing this thread for more on laser-cutting ABS. It is not a trivial matter to ...


8

According to Brickset, these parts have always been made of polyethylene, the only difference is that some of the material is plant-based since the Plants from Plants initiative. Can you tell the difference? No! They look, feel, smell and work just like 'regular' botanical elements. This is because, chemically, they are the same. You can safely mix ...


7

I can't find a link to substantiate this, but a quality assurance representative from LEGO mentioned at a BrickWorld presentation a few years ago that worn out molds are buried on the factory property in Denmark in concrete. If anyone else can find substantiation for that, I'd love to see it.


7

It is fabric - probably cotton or polyester - coated with an acrylic substance that makes it more durable and tear-resistant. You can easily print on acrylic-coated fabric using standard laser printers. You can purchase acrylic-coated fabric through suppliers that sell sign-making supplies as well as art supply shops.


7

I found them. The capes were packaged in a small, unmarked, rectangular, white, cardboard box that was taped shut. Apparently, this little box came with the set, but someone else assumed it was filler trash and put it on our recycling queue. Considering the capes are the only items out of stock besides the Cave Troll, it is possible others may be simply ...


7

The 2012 annual report on the LEGO Groups site states the following: Research and development activities Each year, new launchings account for approximately 60% of the LEGO Group’s sales to consumers. Therefore, the Group has considerable development activities, comprising anything from trend spotting and anthropological studies to the actual ...


7

You can always brick-build a wheel. The curved slope pieces can closely approximate a circle. For example, 12 4x1 curved slopes gives a circle with a radius of 160 LDUs (8 studs). For more information on brick-built wheels, I suggest you refer to the "Brick Built LEGO Wheels Book": http://www.ultimate-design.org/2014/05/unofficial-free-brick-built-lego-...


7

Because of the way ABS plastic injection molding works, it is important that parts have a uniform thickness throughout, and don't just have a large section completely filled with solid plastic. This page explains a little about that: As the plastic solidifies in the mold, it freezes from the outside (near the mold surface) toward the inside. In thick ...


7

It is explained and demonstrated in this documentary from the LEGO factory: https://www.youtube.com/watch?v=wnRRDIFNxoM&t=3m33s While the machines in Denmark use a sensor to detect the paint on the neck-posts to attach the arms correctly, the machines in China use a more sophisticated modern camera to detect torso print, and they don't need the paint on ...


7

From TLG Customer Service (emphasis added by me for one possible explanation): I truly appreciate that you sent this to us so that we could see the variation in the parts. Being able to see the numbers on the inside was very helpful! We haven't had any reports about quality issues with this element for any of the pressings. I've actually taken ...


7

As far as I know, it's not intended to have any building function, it's just there to prevent any excess plastic at the fill hole from getting in the way of other pieces. I can't find a good close-up picture, but that particular piece is filled through a hole in the mold at that location, which you can kinda see in this picture. Without the small recess, ...


7

I asked them over chat and the answer was : There's no a special reason, it's due to the mold. I know, it's not very romantic!


6

Kramii's analysis is quite interesting and it's certain that some colors are more popular than others - as you point out yourself, you find dark red to be more suitable for some buildings, and you're definitely not alone. I do disagree however on the fact that LEGO has a strategic position with regards to certain bricks or colors, or that they find that a ...


6

It seems like the studs have an advantage and here's two reasons why: 1) The base plates have only studs and no antistuds. So many base plates were made that this is stacking the numbers in favor of the studs. There are a lot of studs on those big grids. 2) There are many pieces with extra-studs like this type: but I don't remember pieces (other than ...


6

The LEGO Group's sustainability report covers a few key areas, although it's not completely clear. At the most basic level, they see passing your bricks on to relatives or friends as the most environmentally friendly way of "disposing" of your bricks: Sustainable Play We believe that the LEGO Group should produce and market high quality products that ...


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