A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

Type to find tags:
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Any type of components or tools not directly endorsed by LEGO or it's affiliates.
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Questions about LEGO advent calendars.
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An acronym for "Adult Fans Of Lego".
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A proprietary open wireless technology standard for exchanging data over short distances. Used by the NXT for communication between the programmable brick and a PC or Mobile device.
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an e-commerce site that allows registered users to buy/sell/auction parts, sets, and other LEGO related items.
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Interested in building techniques? Then this is the tag for you.
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2D & 3D Computer Aided Design (CAD)
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LEGO City groups a number of sub-themes into one: Construction, Fire, Police, Space Centre, Trains and Transportation all combine with general city life.
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What's the best way to clean your bricks? What's the best way to care for them? These sorts of questions and more should be tagged with this tag.
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compatible with LEGO bricks.
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Collectable Minifigures (branded as Lego Minifigures) are minfigures sold randomly in polybags in series.
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Questions about colour correctness, colour similarities and how to best use certain colours.
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the official command app from LEGO Mindstorms for Android and iOS. It allows you to remotely control the EV3 Brick via Bluetooth, and includes pre-built controllers for the included…
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Questions about the inter-compatibility of different brick sets, or between bricks and some other objects.
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Questions concerning the modification or customization of Lego parts.