Mechanical Design // Mechanisms // Actuation // Manufacturable Hardware

Dorian PANGbuilds things that move

PANG Yuen Hui (Dorian) · 彭炫栩 · Hong Kong

I'm a mechanical engineering student at The Hong Kong Polytechnic University. I design mechanisms in SolidWorks, hand-calculate what they need, fabricate them, and get them running — from a competition robot to a flight-tested drone and a motor driver I built from a blank schematic. From CAD to a part you can hold.

Focus
Mechanism design & actuation
Based
Hong Kong SAR
Studying
BEng Mechanical Engineering, The Hong Kong Polytechnic University
View projects Contact
Dorian PANG
Selected work

Projects

Six projects, one thread — design it, calculate it, build it, make it move. Open any one for the full case study.

Mini-ROVMini-ROV front
Underwater robotChampion

Mini-ROV

2025 · Team of 13

A remotely-operated underwater vehicle built in my first month at The Hong Kong Polytechnic University — full CAD, waterproof hull, thruster mounts.

Champion13 teamsFull CAD
Robocon R1IC382 robot
Competition robotCompeted

ABU Robocon 2026

2025–26 · Team 2

Competition robot for The Hong Kong Polytechnic University Redbricker — a 2-segment linked conveyor manipulator, built up from my IC382 course machine.

2-segment manipulatorLinked conveyorsTeam 2
ReducerBLDC driver
Self-initiatedRunning

Actuator Stack

2024–26 · personal

A 4:1 planetary reducer I designed and printed, plus the BLDC driver I learned to build so it could actually turn.

4:112+ revisions39/39 tests
X8 droneCleaning arm
Drone startupFlight-tested

Humflight X8

2026–present · co-founder

Co-founded a window-cleaning drone startup — designed the X8 airframe and vacuum-adsorption cleaning arm end-to-end.

X8 airframeCleaning armFlight-tested
Quadruped leg
Final-year projectIn progress

Robotic Dog

2026–present · mechanical lead

Mechanical lead of a 12-joint quadruped with an arm — leg design and the hand-calculated torque sizing behind it.

12 joints22 N·m peakCNC-bound
Can cutterBattery test frame
InternshipIn production

GrinBean Internship

2026 · HK Science Park

Summer internship at a company — a can cutter and a battery test frame, both designed for real manufacture.

Can cutter V3Battery frameDFM
About

Systems Overview

Final-year Mechanical Engineering at The Hong Kong Polytechnic University, on the Dean's Honours List. I like the whole loop — draw the mechanism in CAD, work out what it needs by hand, build it, and watch it run on the bench.

01
Design it
Every project starts as a SolidWorks model — gear trains, linkages, rack & pinion, telescopic mechanisms.
02
Prove it by hand
Torque, force and speed calculations before anything gets cut — so the design is right, not just drawn.
03
Build it
3D printing, laser cutting, waterjet, sheet metal, machining and soldering — plus the motor drivers and PCBs that make it move.