Step 1: Differentiate the Machine Type (Choose the Machine for the Job)

Simple Differentiation:

1. For 3D relief carving, grooving, and cutting thick plates → Choose a CNC mechanical engraving machine

2. For surface marking, fine cutting of thin materials, and burr-free machining → Choose a laser engraving machine

Step 2: Determine 3 Basic Parameters

1. Working Stroke (XY, Z axes)

2. Precision Requirements

3. Output (Daily Processing Time)

Step 3: How to Examine the Core Hardware

1. Spindle

2. Drive Motor

3. Guide Rails and Transmission

4. Machine Bed

5. Control System

6. Worktable

Step 4: Budget & Avoid Pitfalls

Don't buy machines with "prices far below market value for the same configuration." They likely use refurbished/low-quality parts for the spindle, motor, and guide rails.

Confirm After-Sales Service: Warranty period, whether on-site training is provided, and the supply cycle for easily damaged parts (spindle bearings, drivers, guide rail sliders).