A main landing gear for a light aircraft, built as a SolidWorks motion model and a working Meccano prototype. A motor and pulley retract it, a syringe acts as the hydraulic cylinder for extension and damping, and a second syringe works the brakes.
Designed to fit a gear bay shared with three other teams (34 × 12 × 11 in, Piper PA-28R based), so every team's gear could swap into the same fuselage.
I wear my Garmin to bed and my phone charges across the room, so turning off my lights or fan meant getting up. I built a Connect IQ widget that does it from my wrist: it lists my Govee devices and toggles them with one button.
Written in Monkey C for the Forerunner 265, now in beta on the Connect IQ Store. Tested on my own watch, and used every night.
A spiral staircase a homeowner can assemble without a contractor: identical stair modules that lock onto a central column. We designed the kit, its bill of materials and installation instructions, then used a House of Quality to redesign it.
Version 2.0 added a continuous handrail, ribbed anti-slip treads and longer-lasting finishes, benchmarked against two kits on the market.
A web-based calculator for sizing HVAC ductwork. Pick what you want to solve for (velocity, cross-sectional area or flow rate) and it asks only for the inputs that answer needs, in whatever units you have.
When solving for area it suggests the most suitable duct size.