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Andrio Rayon Achas
Summary
I’m a mechanical engineer with a passion for robotics and teaching others about engineering and technology. I enjoy turning creative ideas into practical solutions, sharing what I learn, and inspiring others through hands-on projects. Here are some projects I’d like to highlight:
Projects
HOVERCRAFT - PERSONAL - ONGOING
Hover craft
Hover craft
Summary
My brother and I built a custom hovercraft using parts salvaged from a broken Yuneec drone. We designed and 3D-printed the chassis and impeller, then repurposed the drone’s electronics and motors to bring it to life. This project combined creative problem-solving, mechanical design, electronics, and sustainable reuse.
Skills
Skills
CAD in onshape
Advance lofting
Ground Effect Desing
Air-Cusion System
Ducted Impeller
CFD - Solidworks flow simulation
Design Iteration
Design process
Prototyping and assembly
Documention
IMG_7041.movMKI
MKI
Our first hovercraft design was large and used four separate pods to generate the air cushion. However, its size and weight made it inefficient, difficult to control, and prone to breaking.
A0D00169-662F-45E5-9228-9780FBBAD7E5.movMKII
MKII
For the second design, we used the entire body to maximize the air-cushion surface area. We combined lightweight wood with 3D-printed components to reduce weight and developed a more efficient impeller, resulting in improved performance and reliability.
(This is a video of my teacher, Mr. Jernigan, showcasing my design)
ENGINEERING DRAWINGS AND CAD
ENGINEERING DRAWINGS AND CAD
MARS ROVER - PERSONAL
Mars Rover
Mars Rover
Summary
I designed a Mars rover in Onshape and made it almost entirely from 3D-printed parts, including the gearbox and print-in-place bearings. Instead of using a custom PCB, I wired and soldered every electronic component by hand. This project combined mechanical design, 3D printing, electronics, and hands-on problem-solving. This was one of my first projects
Skills
Skills
CAD modeling
Onshape design
3D printing
Design process
Mechanical design
Print-in-place bearings
Gearbox design
Electronics wiring
Soldering
Prototyping and testing
Troubleshooting
Creative problem-solving
WATER JET BOAT - PERSONAL - ONGOING
Water Jet Boat
Water Jet Boat
This water boat project introduced me to surface modeling in CAD. I began by sketching the concept and then followed the engineering design process to develop and refine the design. Although budget constraints required me to pause the project, I documented each stage thoroughly, making it easy to continue in the future. The experience taught me valuable lessons about CAD, planning, documentation, and iterative design.
Hull
Hull
This 3D-printed boat features a catamaran-style hull that went through many design iterations to improve its stability, strength, and performance. The final design is watertight and includes integrated mounts for a water-jet propulsion system.
Powertrain
Powertrain
This compact water-jet system was designed specifically for 3D printing. Despite its complex appearance, the body consists of only three parts, with the main structure printed in a single piece. The duct is manufactured separately, simplifying assembly while maintaining a functional and efficient design.
Engineering Drawings
Engineering Drawings
I take pride in documenting my work clearly and thoroughly. This was one of the first projects where I made documentation a major part of my design process. I recorded each stage, including my ideas, design changes, challenges, and results. This made it easier to reflect on what I learned and continue improving the project in the future.
EXAMPLES OF COMPLEX CAD MODELS (SURFACING)
Wing Plane
Wing Plane
This aircraft wing was designed and manufactured entirely using 3D printing. Through this project, I learned how to incorporate airfoils into my CAD designs using NACA profiles. It helped me better understand aerodynamic principles, structural design, and the challenges of creating lightweight 3D-printed components.
RC helicpoter body
RC helicpoter body
An RC hobbyist I met at a park commissioned me to recreate the damaged body of his RC helicopter. I modeled the replacement in CAD and 3D-printed it to fit the helicopter’s existing components. This project gave me experience working with a client, measuring an existing part, and developing a practical replacement.
ROBOTICS COMPETITION
(VEXU and FTC)
High School FTC
High School FTC
I served as the team captain of the FTC Robotics Team at Cerritos High School. I was responsible for designing the robot’s chassis in CAD and helping guide the team through the engineering process. I also prototyped and tested each subsystem to ensure it performed reliably and worked with the complete robot. This experience strengthened my leadership, teamwork, mechanical design, and problem-solving skills.
Testing Subsystems
Testing Subsystems
These are some of the robot’s subsystems that I helped design, build, and test. Our team completed many design iterations and extensive testing to improve its performance and reliability. Through this experience, I learned how to lead a team, solve problems collaboratively, and work efficiently under time constraints.
College VEXU
College VEXU
I am currently the president of the Cerritos College Engineering and Technology Club, where our team competes in VEX U Robotics. During my three years of leadership, we qualified for the VEX Robotics World Championship twice. This role has taught me how to manage a large budget responsibly and allocate resources effectively. It has also strengthened my ability to communicate, collaborate, and lead a large team.
The robot on the left was designed entirely by me, then built and tested with the support of an eight-person team. I led the design process while collaborating with the team to assemble, troubleshoot, and improve the robot. The robot on the right was designed by my brother, and I helped him build, test, and refine it.
On the left are the designs for the first VEX U robot ever created by Cerritos College. I designed every component and helped bring the robot from an initial concept to a complete, functional system.
ENGINEERING NOTEBOOK
2026-09-17 11-18.pdfI have three engineering notebooks that document my growth and development as an engineer. My first notebook is complete, while my second was burnt in a house fire. I am currently working on my third notebook and continuing to record my ideas, designs, and lessons learned. The final page is intentionally left blank to represent that my engineering journey is never finished and that I will always continue documenting my work.
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