Week 8 — Group Assignment: Electronics Production

This week group assignment focuses on electronics production. Instructor Matthew gives us a full train of cnc machine safety check items.

1.1 CNC Machine - KEXU

KEXU is a mini CNC engraving machine designed for high-precision carving and milling of jade, wood, and metal.

1.2 install cutting tool

First, install the appropriate cutting tool (V-bit) for PCB milling.

1.3 copper board and set zero

Place and secure the copper-clad board on the platform. Use the controller to position the tool.

1.4 Set X, Y, Z Zero Point in Screen Setting

Calibrate the zero point through the controller screen:

Axis	Setting Method
X, Y	Move tool to front-left corner of copper board → Press "Set XY Zero"
Z	Lower tool until touching copper surface (paper drag test) → Press "Set Z Zero"