Affordable access to CNC prototyping equipment was limited, motivating the development of a low-cost CNC engraving machine suitable for education, prototyping, and small-scale manufacturing. School resources were reserved but not used in educational purposes.
I co-developed a budget CNC portal milling and engraving machine from 3D-concept to functional prototype from scratch. This project is a combination of mechanical design, electronics integration, and digital manufacturing workflows.
As a result:
Built a functional prototype for school display.
The project got awarded on two major conferences for young developers.
We had several publications and interviews in regional and city-level media
Attendance of extracurricular technology class was increased significantly over the next years by students, inspired by our example.
My responsibilities included:
3D modelling of mechanical components and assemblies in Autodesk Fusion 360
Selection of electronic components (stepper motors, Arduino-based CNC control system)
Mechanical design of the frame, gantry, carriage, and drive system
Fabrication of structural parts using CNC machining and 3D printing
Assembly, wiring, firmware setup (GRBL), calibration, and testing
Manufacturing sample engraved parts to validate accuracy and functionality
The system enables automated cutting, engraving, and prototyping operations controlled via G-code. It demonstrates practical applications of:
CAD/CAM workflow
Mechatronics system integration
CNC motion control
Rapid prototyping techniques
NC-code generation and reading
The project focused on achieving usable machining performance while maintaining affordability and simplicity.
Portal-type CNC structure with three axes (X, Y, Z)
Linear guides, belt drives, and stepper motor actuation
Custom-fabricated plywood frame and 3D-printed support components
Arduino Uno with CNC Shield running GRBL firmware
Stepper motor drivers and external spindle motor control
G-code generation from Fusion 360 CAM environment
Work area approx. 13 × 7 inches
Stepper motors: NEMA-17 class
Spindle speed up to ~10,000 rpm
Power supply: 24 V system
Machine weight ~8,8 lbs
These specifications made it suitable for light milling, engraving, and educational use.
Below here are the different views of the model I made. All the blue material later was 3D printed in black.
360-overview is available on Autodesk Library website or below
In the pictures below the assembly and the functioning CNC machine is shown.
The engraving and cutting functionality was later tested on softer material to ensure the calibration for precise handling of sophisticated paths. Pictures below.
Choosing on favor of mechanical rigidity or cost was the main issue. It was vital for us to keep it affordable, within the price of a school project, balancing the sufficient stiffness required for the proper functionality.
Programming motion precision was another task: belt tension, alignment, and calibration significantly affected the movement and needed exact calibration before use.
Electronics integration: firmware configuration, wiring reliability, and noise management required troubleshooting.
Manufacturing constraints: some components had to be adapted due to limited fabrication resources.
It is a good example of my ability to work in a small-scale, but real-world conditions, when the pre-calculations needed to be adapted to the environment of the project.
Young Technicians and Inventors Conference 2019
Awarded Best Industrial Design sponsored by Finval Group (Russia, Moscow, 2019)
ROST-ISEF (Growth-ISEF) International Science and Engineering Fair 2019
Participant (Russia, Innopolis, 2019)
Materials and development under supervision of Parshev A.A at Lyceum 17 for Physics and Maths, Severodvinsk, Russia.
Sample solutions were created by Grigorii Fediakov and Ekaterina Klimova, students of Lyceum 17 for Physics and Maths, Severodvinsk, Russia.
LinkedIn | +1 (917) 916 4549 | Brooklyn, NY 11226 | feduakov17@gmail.com