Airtripper V2 remix

Clarification: I am using a geared stepper with an 8mm output shaft. My hobbed gear is from Makergear and is 13mm in diameter with a 11mm diameter for the groove (Trinity Labs website has the same size). The M4 screws are 45mm long.

Updated 12/28/2013 - added some support for the pushfit. I had an issue with the first one's threads getting pushed out. Also, instead of cutting threads I use a hotair station to warm the plastic and then screwed the pushfit in forming the threads instead.

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