Three Way Flow Control Valve

thingiverse

This four-way flow control valve is ideal if you don't need an "off" position; alternatively, a servo with 300-degree action allows for six positions. The photo shows only one tube, but each input requires a separate tube. The inner disk rotates to pinch all but one input at a time. This invention was partly inspired by a video (http://www.youtube.com/watch?v=0h9cLpLw_9E&feature=player_embedded). See the valve in action in this video (http://www.youtube.com/watch?v=eBHl2WdncW0). To use, purchase a specific servo (http://www.phidgets.com/products.php?product_id=3000) and controller (http://www.phidgets.com/products.php?category=11&product_id=1061), which can control up to eight servos. A single servo controller is also available, but code and PCB holder modifications are necessary. The provided java file demonstrates how to turn a single input on for 10 seconds, and the pichwheel.stl file is only for rendering purposes. Use 5mm rubber tubing for the setup. Print three axels, two PCB holders, and up to six sliders. Assemble, plug into a USB port, and control the flow.