38 votes
Accepted

How does the LEGO Super Mario figure know which power up is attached?

The Mario element has six switches on the front: The inside of the pants in the power-up sets include six plastic ridges that can be either high or low. They interact with the switches on Mario's ...
jncraton's user avatar
  • 40.3k
34 votes
Accepted

How do the various LEGO springs compare?

Over the years the LEGO group has made a number of different springs, dampers and suspension components. The most widely known ones are the springs in the 731 series, such as the above mentioned ...
Phil B.'s user avatar
  • 16.9k
27 votes

Is it possible to build a working 100% LEGO glider with the Technic Catamaran sails?

As it turns out, the answer is yes! Even though the wings are flat and can't generate much lift, I was able to get up to about 15ft of distance on a 10ft drop. click to watch the video Here's how I ...
Alexander O'Mara's user avatar
26 votes
Accepted

Which current wave (2018 onwards) Harry Potter set should I buy to make 12 Grimmauld Place?

Indeed, there haven’t been any models of 12 Grimmauld Place as of yet, and even though the house features in a number of memorable scenes in the movies, even those scenes have never been depicted in ...
Phil B.'s user avatar
  • 16.9k
18 votes

Motorized speedboat from Technic Catamaran alternate model?

With a few Power Functions elements and a pair of propellers, I was able to build a motorized boat similar to the alternate model. 1x: 8881 Power Functions Battery Box 2x: 8883 Power Functions M-...
Alexander O'Mara's user avatar
18 votes
Accepted

What can this curved brick with square holes be used for?

The part is Window Round 3 x 3 x 2 (73878). It was a new mold for 2021, and one of its first uses was as windows on Andrea's House (41449). This piece can be used on buildings anywhere you'd like a ...
jncraton's user avatar
  • 40.3k
3 votes

Which current wave (2018 onwards) Harry Potter set should I buy to make 12 Grimmauld Place?

The Brothers Brick just published notification of another unrelated build - this one is finally an official set. (Though the set number being 76xxx and not being a superhero set is surprising.)
RSchulz's user avatar
  • 7,542
1 vote

Which current wave (2018 onwards) Harry Potter set should I buy to make 12 Grimmauld Place?

Lego just put this unofficial build on Facebook today: 12 Grimmauld
RSchulz's user avatar
  • 7,542

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