Project 04 / Personal · Machine design
Desktop CNC Mill
A full mechanical, electrical, and controls build—plus an honest rigidity lesson

01 / Objective
Build a desktop machine capable of cutting aluminum.
The project combined a complete CAD assembly, motion hardware, spindle cooling, electrical controls, and custom printed components. Standard extrusion kept the frame accessible while printed parts made fast iteration possible.
02 / Build
Integrate mechanics, controls, cooling, and wiring as one system.
I modeled the assembly in Fusion 360, selected a 2.2 kW water-cooled spindle and 180 W servos, built the frame and motion system, and integrated the control cabinet and coolant loop.
The machine became fully operational and completed motion and cutting tests, making system-level problems visible that were not obvious in CAD.
03 / Result
Function achieved; aluminum-cutting rigidity did not.
The machine worked, but the bed and printed structure were too flexible for the intended aluminum milling. That limitation was the most useful outcome: stiffness, joint design, and structural loop closure matter more than individual component specifications.
The build strengthened my mechanical troubleshooting, electrical integration, and willingness to document a result that did not meet the original performance target.



Tools and methods
- Fusion 360
- Assembly design
- Servo controls
- 3D printing
- Electrical integration
- Water cooling