@@ -31,10 +31,12 @@ The above criteria resulted in our current design, which uses a 2L polycarbonate
The parts were modeled on SolidWorks and The custom cap has 3 1/4-inch ID barbs on top bonded onto the main piece with silicone. It is modeled after the original screw cap, which is a 53B closure with a thread with 4 turns per inch.
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The blower is adapted from a design posted on Thingiverse[^2]. It has been modified to be free-standing, fit a 280 motor, and feed air directly into 3/16-inch ID tubing. Note that the barb is a separate piece from the top piece so that it can be printed upright. This guarantees a clean hole for air to flow into the connecting tube.
