High school engineer building things that shouldn't exist yet. Custom 3D printers, composite winding machines, and high-power rockets — all designed from scratch and fully open source.
The first-ever implementation of a Colinear Delta — a novel hybrid of standard Delta and Quantum Delta CNC motion. Both the hotend and the bed move independently using delta kinematics. Exhibited at Open Sauce 2025 in San Francisco — a premier maker convention attended by leading global figures in engineering and making. Rigid 2040 frame, 0.9° steppers, remote CPAP part cooling, self-contained RRF with Ethernet.
A modernized quantum delta optimized for high-speed performance through custom composites work, achieving a total moving mass of under 120 grams. Direct-drive BoomBox extruder, AWD motion, triple 124CFM axial fans, carbon fiber arms, MGN12C rails. Sponsored by Polymaker, Siraya Tech, Fysetc, and HackClub.
A fully custom 3-axis CNC filament winder for high-performance rocketry components. The largest working area of any open-source composites winder: 60" length by 10" diameter. Winds carbon fiber, fiberglass, and basalt composite tubes for rocket bodies and motor casings. Novel "Omegadrive" belted linear system, Marlin firmware. HackClub Blueprint funded.
Big Engine Certification Completion Attempt. A fully custom 5-foot L1 certification rocket targeting Mach 0.8 and 1-mile altitude on an Aerotech I500. Dual-deploy parachute system with custom GPS avionics using a Particle Boron and Adafruit Ultimate GPS for post-flight recovery.
A self-contained camera module for a high-performance 3" rocket, engineered to withstand Mach 6+ velocities and operate beyond the Kármán line (100km). Integrates a COTS camera with a custom LoRaWAN-enabled control PCB and custom machined mounting and camera shrouding.
A high-performance cartesian toolhead with an SLM aluminum monobody cooling duct and heatsink. Applied fluid dynamics principles to duct and hotend design for optimized thermal and airflow performance. Orbiter 1.5 extruder, BTT Eddy Duo scanning Z probe. Designed in under 48 hours for HackClub Rework.
A massively overengineered high-performance Y-axis assembly for the Ender 3. 4040 base, 3090 Y extrusion, dual MGN12H rails, AWD motors, and huge bracing — chunky by design. Built in 11–12 hours for HackClub Rework.
A fully custom amateur sounding rocket. Repository coming soon.
I'm Parker Rupe, a high school student concurrently pursuing an Associates in Applied Mathematics at Boise State University. My focus is mechanical engineering with a specialty in additive manufacturing — not just using 3D printers, but designing entirely new ones from scratch.
From delta kinematic hybrids to composite fiber winders to high-power rocketry, every project pushes into territory that hasn't been explored yet. I document everything openly on GitHub so the broader community can learn from and build on the work.
I'm proud to be sponsored by SUNLU Filament, whose material support has made several builds possible. I've also received grants from HackClub's Blueprint and Highway programs, and been sponsored by Polymaker, Fysetc, and Siraya Tech.
My long-term goal is pushing additive manufacturing into aerospace and high-performance applications — winding my own rocket motor casings, printing flight-critical hardware, and eventually reaching for spaceshot altitudes.
Interested in collaboration, sponsorship, or just want to talk shop about 3D printing or rocketry? Reach out — I'm always happy to connect with people who are building things.