A waste of precious helium, but still really really cool.

3D Printing
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1

A waste of precious helium, but still really really cool. I wonder if this would work with hot air instead.
http://www.youtube.com/watch?v=rN-mfQsno2g

2

Hydrogen

3

And setting them of fire as an extra bonus.

4

Hydrogen, open wires and heat, what could go wrong :wink:

5

as long as it’s not confined you’ll not likely do worse than singe some eyebrows.