The HTS in action with the side panels removed.

HTS: Hypodermic Trade System

(2019, Age 13)

This machine was designed and produced by me for the Pennsylvania Governor’s STEM Competition 2019 for my team at EWCTC. It was an automated needle exchange system for intravenous substance users to safely dispose of used needles, and acquire a clean replacement as a method of harm reduction.

It utilized NFC tags to verify that an HTS syringe and needle are being returned to the machine, and would dispense a clean syringe and needle after verification of the code contained on the tag. It was entirely 3D printed out of ABS plastic. It contained an Arduino Uno for machine control, along with two stepper motors.

Even though the HTS was one of my first full-size machines, it was exceptionally rigid and polished, still fully functional three years later. Our team was recognized at the state level in competition.