Physics project redesign built for school STEM experiments — 7 measurable improvements over the Thingiverse baseline, including solid-spoke wheels, universal chassis cradles, and an axle string-release mechanism.

Custom Arduino shield redesigned for an intro Arduino class after SparkFun discontinued the original Danger Shield — adds improved components and layout while keeping the same hands-on exercise set.

A quick hands-on demonstration giving novice users a concrete feel for what an Arduino is, what it can do, and how easy it is to get started — progressing from blinking an LED through buttons, analog I/O, servo control, and sound.

Detroit Maker Faire demonstration reproducing Edison’s original incandescent light bulb — pencil lead as the filament, D-cell batteries in a PVC pipe as the power source, and a glass bottle as the envelope.