Wave Pendulum via 3D printing
thingiverse
Paul Liu's blog post, available at http://hippomath.blogspot.com.au/2011/06/making-your-own-pendulum-wave-machine.html, details the progress of a pendulum wave machine still in development. A video showcasing its operation can be found at http://youtu.be/LVjnVPLGuDc. To enhance the bobs' swinging accuracy and reduce collisions, Liu plans to add weights (lead shot is on order) and adjust pendulum timing accordingly. The structure, being 550mm wide and 440mm high, required a combination of 3D printing and timber for construction. Printed parts were assembled using screws, as illustrated in photos. Each batch of five pendulums was installed with a slightly loose cover rail, allowing for cord adjustments. All holes are designed for 3mm screws, and the project was made on an Ultimaker using DiamondAge PLA.
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