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11 votes
Accepted

Was there ever cadmium in LEGO bricks?

I asked Gary Istok on your behalf in this Brickset Forum thread, who is an expert on LEGO's history. He said the following: When LEGO replaced the Cellulose Acetate bricks circa 1963 with ABS ...
11 votes
Accepted

Is there any legit positive impact of LEGO on mental health?

Yes. Here is a study that demonstrates one way to use LEGO in ADHD counseling. If you are looking for a more rigorous outcomes-focused methodology, there's another study that looked at the impact of ...
  • 34.9k
6 votes

Are there any reports of fatal or life-threatening incidents with LEGO?

The vast majority of lego related injuries included some variation of the following: Cutting fingers by trying to disassemble Lego Stepping on Lego (of course) Quick movement of the corner of a piece ...
6 votes

Why did LEGO stop selling sets for <1.5 year old (Primo etc)?

I can't comment on why Lego stopped selling Primo. But I can assure you that Duplo is fine for children. The smallest pieces are way too large to choke on, as far as I can tell. Small babies probably ...
6 votes
Accepted

What is the best way to exhibit extra large sets, like Taj Mahal?

Disclaimer: I don't own the set in question and I'm not affiliated with anyone selling products mentioned below. Searching in Google for "lego taj mahal acrylic cover" reveals a staggering ...
  • 14k
5 votes
Accepted

How to distinguish official LEGO mini movies from non-official movies?

Hello Eran's family! How are you all doing today? Please try these methods instead: The Publisher's Home Page - DON'T go directly to the search box to search the term "LEGO city mini movies", but ...
  • 8,738
3 votes

Are Chinese clone brands considered to be safe for children?

Is there some kind of official source regarding the safety of bricks made by brands other than LEGO®? As far as I am aware, no. At least not specifically for construction brick toys. Some brands (...
  • 17.4k
3 votes

How can I prevent my finger from getting injured between gears?

Here's an idea for a stop switch using a remote control and one's wrist. Place your wrist on the switch to start the motor. With your hands free you're still able to carefully adjust your running ...
  • 2,488
2 votes

Was there ever cadmium in LEGO bricks?

Even in early 1980s there were some patches having Cadmium. I should link to the study but lost it now. Here is somewhat proper reference: https://www.thesun.co.uk/news/5436922/second-hand-plastic-...
  • 121
2 votes

Are there any reports of fatal or life-threatening incidents with LEGO?

At about 9 years old I fell out of bed onto a constructed set. Managed to get into my parents bed and fall asleep. In the morning the pillow was soaked with blood and I got the day off school. As far ...
  • 3,231
2 votes

Is the LEGO Mindstorms EV3 brick waterproof?

No, the LEGO Mindstorms EV3 is NOT waterproof. Any electronic product that is capable of being immersed in water will clearly state in the packaging/manual the level of water protection provided. This ...
  • 17.4k
2 votes

Lubricating train axles - which oil to use?

Generally for this sort of thing the recommendation is a "light machine oil" (the wording from the Hornby Maintenance sheets). These are "non-penetrating" and so won't damage the ...
2 votes

How can I prevent my finger from getting injured between gears?

If your geartrain contains z24 gear you can substitute it with z24 clutch gear. It has built-in safety mechanism - it would slip under certain toque and as result of this it will stop transfering ...
  • 20.3k
1 vote

Lubricating train axles - which oil to use?

Petroleum based lubricants you need to be careful with, since they can act as solvents. Zhaph mentioned non-penetrating machine oil, this sounds like a safe bet. If you are in doubt, grab a gnawed ...
1 vote

Do old LEGO bricks contain lead, cadmium, or other hazardous elements?

While this question was asked in 2012, in late 2018 there was a flurry of inflammatory headlines and blog posts on the topic. The origin of these is a January 2018 study “Concentrations and ...
  • 113
1 vote

Is it safe to overload LEGO train motors?

Yes heat is the ultimate problem but the most likely failure will be from the commutator brushes. As the voltage is increased so does the heat of the sparks created as the brushes pass from one ...
  • 211

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