"More child friendly"
Oh, for God's sake.
(Besides, Lego is made out of that nasty stuff, you know, plastic -- surely you don't suggest we give our children something that might be oozing filth and toxins all over their vulnerable little hands?)
While punters have been crafting their own homemade Raspberry Pi cases since the miniature Linux box was first revealed, one inventive youngster has now shown how Lego can be a perfect fit too. 12-year-old student named only as "Biz" has had her Raspberry Pi Lego case instructions posted on the company's official blog, …
Oh, for God's sake...
I used to chew random bits of lego (usually those + shaped rods for the gearings) while contemplating which parts to put where. If it affected me, I'm pretty sure it affected me a lot less than additives in food, lead in petrol (as was the way back then) and all manner of god-knows-what in the ground that was played in, with, and around.
Most plastics are quite safe, ABS particularly -- no worries there. It was an apparently unsuccessful attempt to lampoon the idea that seeing an empty Marlboro hard pack is, I don't know, going to instantly inflict a pack-a-day habit upon an unsuspecting six-year-old, or something.
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If people are getting passionate about building cases for their Raspberry Pis, that's surely a good sign. Because the whole intention in the first place, was for the Raspberry Pi to inspire creativity.
Kids absolutely should be building stuff (and to a certain extent it doesn't matter exactly what stuff -- it's the act of building that's important), not just dreaming about being WAGs or reality TV stars. Some of the more out-there cases, in their turn, will no doubt inspire some equally out-there apps.
It's very easy to get cynical, but once in a while something comes along and reminds you that there is still hope for humanity.
One of the big benefits of the Pi is that the SoC (BCM2835) consumes only 1.5W. Even in completely sealed enclosures, it's difficult to get it to exceed 45C, partly because the board itself acts as a giant passive heatsink. A quick Google suggests the melting point of ABS plastic (such as that used in Lego bricks) is around 105C. I'd suggest that the holes left in the enclosure for connectors to poke through would provide more than adequate passive airflow.
I've just spent the last 5 minutes researching and justifying the use of Lego as a system enclosure. See, IT can be fun.