But [Matthias Wandel] may be on to something. Here he’s using nichrome wire to reinforce the broken plastic part. The repair process is demonstrated in full in the video after the break.

There’s everything from a table of design requirements to quick but thorough explanations of nichrome wire and basic electronic theory. And then there’s the material consideration.

Can you build a powerful heater fan using Lego without melting it? In this experiment, we’ll put Lego to the test by using nichrome wire,a high-resistance material used in toasters and heaters to ...