http://www.radionz.co.nz/national/programmes/ninetonoon/audio/2583738/ro...
Interesting stuff especially the 3d printing fins. Id like to find someone who can 3d print around here a few designs, though i hear 3d printers take 8-12 hours per piece.
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http://www.radionz.co.nz/national/programmes/ninetonoon/audio/2583738/ro...