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Comment: Ok, fair enough, I wondered if it was for heating.Thank you for replying.
Comment: Why are you using 2 10 ohm resistors in parallel rather than a single 5 ohm resistor?
Comment: Do you have any problems with condensation getting trapped between the bubble wrap and …
Comment: Have you considered a spiral pump?http://www.notechmagazine.com/2011/06/how-to-build-a-…
Comment: For a slightly different feel, you can use a bit of strong board (I used plywood) and p…