Things I've Built
Potato guns
A barel sealing piston valve integrated potato gun for an extremely fast opening high performance experience. Tennis balls can easily achieve 90% the speed of sound.
End grain cutting boards
Simple end grain cutting boards as well as a PHP based cutting board design calculator and visualizer
3D printer
A 3 axis, CNC 3D printer that uses all metal rigid frame and precision ground linear bearings for low flex and high speed printing, machining, etc.
Homemade scuba diving gear
A large party helium tank was repurposed as a scuba diving supply. A long hose supplies air from the tank floating on the surface of the water.
Electric Bicycle
A 1000 watt brushless hub motor and batteries mounted to a standard bicycle for pedal free transportation.
Spot welder
A rewound microwave oven transformer to output very high currents for resistive welding.
RC sailboat
A homemade fiberglass hull sailboat with hand sewn sails. Standard RC electronics allowed remote control of the sails and rudder.
Night vision goggles
A pair of night vision goggles made from near IR LEDs and a mini CRT view finder from an old video camera.
Binary Clock
A clock comprising three rows of LEDs that read out the current time in a binary format.
Automatic cat feeder
A microcontroller controlled cat food dispenser to meter dry cat food over the course of a few days.
Stirling Heat Pump Refrigerator
A self designed and machined stirling heat pump to replace a mini-fridge compressor. The stirling engine was run by an electric motor to pump heat from inside the fridge.
High power bench-top power supply
A general purpose high power bench-top power supply with integrated features such as battery charging profiles, and serial communication and logging.
Mechanical Calculator
A wooden mechanical analog of a basic four function calculator, including registers and logic gates.
Word Clock
A wall mounted clock that comprises a 10 by 10 matrix of illuminated letters to spell out the time of day.
Weather Logging Station
A solar powered weather station that logged sunlight, rain, temperature, and wind speeds. The data was then compiled and pushed to a remote server for access and analysis. The project ran successfully for multiple years, before being taken down.
Roald Lemmens
Matias N.
sayanee
PROFESOR
ascendtech.robotics
Mo Badr
Tamarisk Labs
Alex McClung
joaquin.aldunate
KarolGalka
fiveseven808
Curt White
Chris Gkiokas
Erik S. Bailey
SHAOS
jordan314
Bikash Narayan Panda