LEGO® Answers Stack Exchange
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1500 questions
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1 answer

What piece is this? It's a hard one, and a very small one. It's 2x1 I believe, and it could possibly be an accessory

This is the piece I'm looking for, because I'd like to build this microscale train myself. It may very well be the handles of two levers glued to the rest of the train, but I really don't want to believe whomever made this resorted to gluing their…
Stephen
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6 answers

Estimate building time for a given LEGO set

I'd like to be able to estimate better how much time a LEGO set will take me to build. Are there any resources online that indicate average or fastest building times for a given set? I suppose it also depends on type of set (for younger or for adult…
Michael Verschaeve
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4 answers

How can I get my motor to line up with a linear actuator?

I am very new to Lego, and I want to create a simple horizontal sliding door. I'm using a medium linear motor to drive a linear actuator which is attached to the door. The problem is the motor does not line up with the linear actuator. How can I fix…
BigJeng
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18
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9 answers

Are there any mirrored LEGO bricks?

I recently built LEGO Creator 5770: Lighthouse Island which features a clever trick to build the lighthouse's lantern, using stickers on on a Slope Brick 2x2 and Slope Top 1x2x2/3: Step 54 from Lighthouse Island Instruction Manual 1/3 It works…
user23
18
votes
1 answer

Got a weird trans-purple cone part as extra in 71043-1 Hogwarts Castle

I bought a 71043-1 and one of the extra parts is this trans-purple "cone" with the smaller through-hole, which couldn't identify since there is no element number, only the mould number which is 05-B01. Here's a picture, (normal stud as a comparison)…
Aaron
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18
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1 answer

How do the various LEGO springs compare?

Recently I received set 42107 Ducati Panigale V4 R. I noticed that this set includes a new spring - part 65151c01 Technic, Shock Absorber 11L with Internal Spring, Dark Bluish Gray Shaft, and Light Bluish Gray Tip - as well as a “regular” spring -…
Phil B.
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18
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1 answer

Realistic Lego car sets containing gearboxes and engines?

Lego Technic 853/956 Auto Chassis contains a car chassis, complete with a transmission gearbox. Other sets like Lego Technic 858/8858 Auto Engines contain parts to build working models of real-life Inline engines, V6 engines, Boxer engines, and…
Flux
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1 answer

What color has been produced in the highest volume?

What color makes up the highest percentage of LEGO elements produced since ABS plastic was introduced in 1963?
Major Stackings
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1 answer

Explaination of LXFML file contents

I am interested in writing a game that interprets LXF files into worlds (to create a game such as Lego Universe). After finding out how to extract the LXFML file from the LXF archive, I need to know how to interpret the contained LXFML file. Are…
StackUnderflow
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3 answers

Lego set for 17 year old

This might sound a little bit silly, but I'm 17 and I've never built a LEGO toy, so I was looking for a first one, to see what it's about. What sets would you recommend I should look at, that are complex enough for someone my age not to get bored? I…
Grewe Kokkor
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18
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5 answers

How much does a LEGO brick weigh?

I am trying to do a science project and I need the exact weight of one of the LEGO pieces. I am using it as a counter balance on my scale. What is the weight of a 1x4 LEGO brick?
w c
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3 answers

Is it possible to build Lego bricks with a makerbot replicator 3D print?

Is it possible for plates, tiles or small pieces ? Is it possible to use MLCAD with a Makerbot replicator?
john lamarck
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18
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3 answers

Looking for a site with custom instructions

I'm looking for a website that has some cool custom model instructions. I have a LEGO store near me and I'm able to buy pieces individually. I'm looking for more of a sci-fi ship kind of instructions.
Jason
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18
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2 answers

What is the name of the Lego product that snaps together with knobs?

I remember owning a very strange Lego set, but have forgotten the name. The pieces were similar to Technic parts, but different. They were green rounded frames and connected using purple squares with knobs. I do not recall them being able to…
Pubby
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Which old Technic set included large yellow motor?

I am trying to find the number or some other identity of a Technic set I remember owning as a child (so it was probably bought in the 1985-1995 year range, more likely in the 80's half of it). Among lots of other (mainly yellow) bricks, it included…
Angew is no longer proud of SO
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