Self-driving zero turn lawnmower v2
A rewrite of the controller and the compass calibration, plus a simulator that runs the real Arduino code
Projects
Work and personal, newest first. Everything here was built and, mostly, measured afterwards.
Electric go-kart v2
Two ClearPath servos and 10:1 planetary gearboxes, one per rear wheel — and the RMS current limit that ended it
Electric go-kart v1
Replacing fossil fuels is fun! And hard!
Automated roller diagnostic tool
The creation of a fully automated tool to determine roller health using optical flow sensors
Self-driving zero turn lawnmower v1
An Arduino, an IMU and a pair of linear actuators on the handlebars — the first version, which cut one strip of grass
Hot water recirculation
My adventure in trying to get hot water to my bathroom faster
Commute analytics
I hate sitting in traffic. I wrote some software to tell me when is the best time to go to work
Living room lighting
How to get some modern lighting into an old living room with no ceiling cavity for recessed lights
Ecobee wiring
How to wire up a 2-stage geothermal heatpump to an Ecobee with only 5 wires
Duct work redesign
When your HVAC company wants $5800 to do something that should only take you a few hours... right?
Crawlspace encapsulation
Crawlspace venting is required by code but it probably should actually be specifically disallowed
Geothermal heat pump
I needed a new air conditioning system anyway, so I decided to install a geothermal heat pump
Smart singulator
The newest technology in automated package singulation (converting bulk flow to single file)
Small package sorter
The first of a new generation of package sorting machines
Trailer hitch installation
How to install a trailer hitch on a 2013 Audi A3 TDI
Solenoid valve timing test
A test to determine if Ethernet and IO-Link controlled solenoid valve banks are as fast as direct wired
Marcus Hook
Marcus Hook, PA - A plant to separate, liquefy, and store ethane and propane from shale gas originating in western PA
Newcastle gas storage facility
Tomago, NSW, Australia - A liquefied natural gas peak shaver and truck loading facility
TED (The Energy Detective) installation
Installing The Energy Detective (TED) to determine electrical power consumption throughout the entire house
Motorcycle rebuild
My adventure rebuilding a 1976 Honda CL360 that someone had taken apart and then sold me pieces in rubbermaid containers
Temple LNG peak shaver
Reading, PA - A liquefied natural gas peak shaver expansion
Mt Hayes LNG peak shaver
Ladysmith, British Columbia - A new liquefied natural gas peak shaver
Elba Island LNG import terminal
Savannah, GA - A liquefied natural gas import terminal
Electric bike version 3
A third (and much better) attempt at an electric bike
Electric bike version 2
A second attempt at a battery operated electric bike
Saab CAN interpreter
Using a cheap CAN-RS232 converter, I built a dashboard that would display lots of information about how the car was running
Radar detector integration
I've never liked things stuck on the windshield so I integrated a radar detector into the radio head unit
Wind measurement logger
I built a wind measurement logger to see if it would make sense to invest in wind power generation in a certain area
Laptop battery cell replacement
After my laptop battery died, I replaced the cells individually. Cheaper than a whole new pack!
Electric bike version 1
My first attempt at a battery powered electric bike
PEM fuel cell hybrid bus
I spent a summer in Downey, CA helping to build a PEM fuel cell hybrid bus
Water balloon launcher
I built a pneumatic water balloon launcher capable of over 1000 feet
Medical tubing assembly machine
My senior design project was to design and build a machine to automatically assemble some medical tubing