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gzumwalt
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My basement in Oklahoma, US
Joined February 1st, 2017
210
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1,533,839
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Our grandkids keep me busy!
Greg Zumwalt
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gzumwalt's Instructables
Marblevator, Loop 2.
Marblevator, Marble Launch Mechanism.
Christmas Tree, 2023.
Marblevator, Simple, Halloween
Marblevator, Less Simple, Less PLA.
Marblevator, Simple.
Pinwalker Penguin
Penguin at the Pole.
A "Do Nothing" Dominoes Box.
Marblevator, Clown.
Set Promoted Items
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210
Instructables »
Achievements
1K+ Comments
Earned a gold medal
1M+ Views
Earned a silver medal
100+ Featured Instructable
Earned a gold medal
Contest Winner
Second Prize in the
Magnets Contest
Contest Winner
Second Prize in the
Make it Move Challenge
Contest Winner
Runner Up in the
Halloween Contest
Contest Winner
Judges Prize in the
Microcontroller Contest
Contest Winner
Second Prize in the
Toys and Games Contest
Contest Winner
Runner Up in the
Arduino Contest
Contest Winner
Runner Up in the
Toys & Games Contest
Contest Winner
Runner Up in the
Anything Goes Contest
Contest Winner
Runner Up in the
Plastic Contest
Contest Winner
Second Prize in the
3D Printed Contest
Contest Winner
First Prize in the
Robotics Contest
Contest Winner
Runner Up in the
Halloween Contest 2019
Contest Winner
Runner Up in the
Make it Move
Contest Winner
Runner Up in the
Epilog X Contest
Contest Winner
Runner Up in the
Pocket Sized Contest
Contest Winner
Runner Up in the
Toys Contest
Contest Winner
First Prize in the
Water Contest
Contest Winner
Runner Up in the
Make it Move Contest
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Runner Up in the
Wireless Contest
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Runner Up in the
Untouchable Challenge
Contest Winner
First Prize in the
Design Now: In Motion Contest
Show 21 More »
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