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Top Questions

1 vote
1 answer
32 views

Little figurine identification

20 votes
2 answers
9k views

How to tell the different ages of pieces?

5 votes
4 answers
2k views

Choosing scale for train models: what scale is "L-gauge"?

6 votes
2 answers
343 views

Which 1x2 brick design is older?

38 votes
2 answers
5k views

How has the basic brick changed over the years?

13 votes
2 answers
3k views

What are all the different ways that LEGO pieces join together?

2 votes
0 answers
38 views

Railway track layout - is there a method to say if track layout meets up

0 votes
1 answer
384 views

Unidentified Lego bags in set 11015 (Around the World)

1 vote
0 answers
43 views

Aircraft with missing wing part [closed]

5 votes
1 answer
202 views

Where can I find the value of this seemingly rare MEGA BLOKS tree and whether there are additional parts?

6 votes
0 answers
67 views

Help identifying bricks - non lego

3 votes
1 answer
71 views

Small torso cracking

4 votes
1 answer
313 views

What set does this bag belong to? Mostly black with some red and yellow pieces

0 votes
0 answers
43 views

Identify kit bags belong to [duplicate]

7 votes
1 answer
616 views

What set is this from? (spiky transparent blue with cross bar in the center)

7 votes
3 answers
2k views

How do I erase all old programs using the new scratch type Education software?

5 votes
1 answer
546 views

Looking for set number - lots of off green flat pieces

37 votes
9 answers
16k views

How do I change the color of a brick?

3 votes
1 answer
129 views

What Lego-like head is this, with a blue slit over the eyes?

1 vote
0 answers
83 views

Fit motor to old tractor

3 votes
1 answer
2k views

Where is the LEGO logo on the Tartan Batman minifigure’s cowl piece?

3 votes
1 answer
332 views

Piece in Lego 21327 Typewriter Step 26 can’t be flush as depicted in the illustration

11 votes
5 answers
31k views

Lego Mindstorms RCX RIS 2.0 IR tower Windows 7 / XP driver

7 votes
1 answer
152 views

Adapters for Lego Duplo and Mega Bloks

7 votes
1 answer
152 views

What are the small numbers on old LEGO instruction booklet covers for?

5 votes
0 answers
66 views

IR remote 8879 - can not control speed

16 votes
5 answers
32k views

How to use Power Functions with Mindstorms EV3?

7 votes
1 answer
116 views

Help with Lego Typewriter 21327 - can't get the carriage mechanism working

2 votes
3 answers
297 views

"Heads up! Could not open project" error message when opening project

1 vote
0 answers
179 views

"Heads up! Could not open project" error message in EV3 software [duplicate]

12 votes
4 answers
15k views

How do I move assembled LEGO sets?

7 votes
1 answer
241 views

What is the best way to connect SPIKE prime angular motor to a wheel

7 votes
6 answers
6k views

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

16 votes
1 answer
713 views

Why did LEGO switch the direction of flag elements in 2008?

5 votes
1 answer
360 views

What happened to "LEGO Service"?

11 votes
6 answers
2k views

Which parts do not have the LEGO logo stamped on them?

38 votes
16 answers
13k views

What LEGO pieces have "real-world" functionality?

13 votes
1 answer
701 views

What is a novelty element?

6 votes
2 answers
736 views

Fan door does not close completely - Air Race Jet

3 votes
1 answer
100 views

Are LEGO Pneumatics gen 1 and gen 2 compatible?

1 vote
1 answer
45 views

Is it possible to control the EV3 brick with a GUI on PC? If so hows the best way to go about it

16 votes
1 answer
5k views

Realistic Lego car sets containing gearboxes and engines?

3 votes
2 answers
2k views

Caterpilar D11 (set 42131). Control+ app doesn't seem to work

1 vote
2 answers
11k views

LEGO Plastic Bags #

1 vote
0 answers
74 views

Cat D11 LEGO set won't start the calibration process

7 votes
0 answers
178 views

Looking for a PC controlled motor that allows for very small and precise movements

6 votes
2 answers
189 views

How can I connect a 4mm Stepper motor shaft to a technic gear?

9 votes
1 answer
2k views

What is inside the LEGO Powered Up M motor?


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