Spikey the Wonder Dog Roly-Poly Toy

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Fully 3D Printed Roly-Poly Toy The Science behind Roly-Poly toys can be found here: http://en.wikipedia.org/wiki/Roly-poly_toy Watch my toy wobble in this video: http://youtu.be/XiFWunEWmpY To make your own, follow these steps: The top part should be printed with as little infill as possible. You may need to slow down the print speed significantly to prevent warping issues. Print the bottom part at the highest density possible, aiming for 100% if you can. This will create a large weight difference between the two parts. Sand or smooth the bottom part to get the best wobble. The models in these pictures have been smoothed with acetone. For updates, follow me on: http://www.instagram.com/EmbeddedJunkie http://www.twitter.com/EmbeddedJunkie http://www.facebook.com/EmbeddedJunkie http://plus.google.com/+EmbeddedJunkie http://embeddedjunkie.tumblr.com http://www.EmbeddedJunkie.com