Greg Zumwalt

Retired but still enjoy learning.

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This user joined on 02/05/2019.

Things I've Built

Single Cylinder Air Engine Rolling Chassis

This was an experiment in how far the air engine I had previously designed would propel an open chassis vehicle using balloon power. Ran 50 feet on concrete.

Wifi Paddle Boat

A pool toy I designed for the grandkids.

Fab Lab Tulsa 1 (FLT1)

Fab Lab Tulsa asked me to design a boat for their boat race challenge, and I gladly accepted!


An animated Hummingbird I designed for my wife, who loves hummingbirds.


Animated / exploding Darth Vader model.

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Michael Gardi wrote 08/02/2020 at 20:58 point

I really really love your work. It makes me happy. Thanks!

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Greg Zumwalt wrote 08/03/2020 at 00:08 point

Thank you so very much Michael for your very kind words, and I'm truly happy to bring happiness to you! Greg

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