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Greg Zumwalt

Retired but still enjoy learning.

Oklahoma
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45 Followers
36 Following
99 Projects
416 Likes
greg-zumwalt
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This user joined on 02/05/2019.

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Modeled after a wrist watch video sent to me by our youngest son.
Project Owner Contributor

Geneva Clock

greg-zumwaltGreg Zumwalt

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A 3D Printed Hopping Mechanism.
Project Owner Contributor

Hopper.

greg-zumwaltGreg Zumwalt

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An electro-mechanical Valentine Day automaton with an 18 layer heart.
Project Owner Contributor

A 3D Printed Valentine For My Wife, With A Twist.

greg-zumwaltGreg Zumwalt

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You just gotta love refrigerator magnets...
Project Owner Contributor

Refrigerator Rover

greg-zumwaltGreg Zumwalt

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A magnetic tensegrity model.
Project Owner Contributor

3D Printed Magnetic Tensegrity Model

greg-zumwaltGreg Zumwalt

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Sometimes simple is better.
Project Owner Contributor

A 3D Printed Simple "Walking" Mechanism.

greg-zumwaltGreg Zumwalt

View all 99 projects

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!

Hummingbird

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

Darth

Animated / exploding Darth Vader model.

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FREE and Open Source, Arduino Due based Telescope Control GOTO
Project Owner Contributor

rDUINOScope Boiana

dessislav-gouzgounovDessislav Gouzgounov

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Breaking the encryption on the Lerdge series mainboards so I can try porting Marlin 2.0 to it.
Project Owner Contributor

Lerdge 3d Printer Mainboard Hacking

jc-nelsonJ.C. Nelson

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Get high-resolution 3D printing by building your own.
Project Owner Contributor

Laser SLA 3D printer with galvo

mark-pengMark Peng

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The EVI is at-risk of becoming extinct. Explore the development of a DIY EVI Windcontroller for survival of this great instrument
Project Owner Contributor

DIY EVI-Style Windcontroller

steve-andersonSteve Anderson

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Instead of showing the time like in classical type of clock with the hands or numbers, it shows you a time by displaying the text
Project Owner Contributor

Word Clock base on RGB LED WS2812B

simonSimon

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Replace the bimetallic thermostat with a few microcontroller based thermostats to control the combi boiler.
Project Owner Contributor

Multi Zone Wireless Thermostat

jose-maria-rodriguez-saezJose Maria Rodriguez Saez

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Universal 3D printed gripper for robotics.
Project Owner Contributor

Modular Universal Jamming Gripper

cole-bCole B

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An launch pad and gantry for the LEGO Saturn V model. Crane, crew arm, gantry arms, service arms and model itself are animated for liftoff.
Project Owner Contributor

An animated Saturn V launch pad and gantry

mark-howeMark Howe

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Tiny IOT Solution based on Arduino& SIM808 GPS/GPRS
Project Owner Contributor

IOT- SIM808 GPS Tracker Based on Arduino

makerfabsMakerfabs

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Week of Arduino
Project Owner Contributor

Arduino Skillz

kendoken.do

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UNMANNED GROUND VEHICLE, Compatible with Arduino
Project Owner Contributor

M1 Rover

ahmed-azouzAhmed Azouz

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Simple ESP32-based robot controlled with ESP8266-based wifi remote
Project Owner Contributor

Robo32

matthew-gorrMatthew Gorr

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Using an Wemos D1(esp8266), cheap power supply, a switch, and a temp sensor you can automate anything
Project Owner Contributor

Home Automation on the Cheap V2

thjubeckthjubeck

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Experimenting with 3D printed tools.
Project Owner Contributor

3D Printed Opensource Tools

progressthProgressTH

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Internet enabled lock for main door
Project Owner Contributor

IoT Main Door Lock

danielblanquezdaniel.blanquez

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PCB Badge, with ESP8266 microcontroller (ESP-12) with WiFi, 5 directional Neopixeles.
Project Owner Contributor

Oshwi, the octopus IoT Badge

gustavo-reynagaGustavo Reynaga

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A seven segment LED display clock, immersed in mineral oil.
Project Owner Contributor

JAR Clock

marius-taciucMarius Taciuc

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A BCD binary clock that fits inside of a jar
Project Owner Contributor

Binary desk USB jar clock

marius-taciucMarius Taciuc

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Bits

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

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

  Are you sure? yes | no

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

  Are you sure? yes | no

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