1.4 Assembly & First Setup¶

This section explains how to assemble, and prepare your YUMI Laser for its first use.
The complete illustrated assembly instructions are available in PDF format.

YUMI Laser Assembly

1.4.1 Assembly Manual (PDF)¶

Click here to download the official assembly guide:
YUMI L Series (Laser) Assembly Guide

1.4.2 Assembly Checklist¶

1- Unpack all components

Check that all parts match the inventory list in the manual.
Inspect each item for shipping damage.

2- Frame Assembly

Follow the sequence in the PDF guide to assemble the aluminum frame.
Ensure all screws are tightened evenly, but avoid over-tightening.

3- Install Laser Module

Mount the selected laser head (2.5W / 5.5W / 10W / 20W).
Connect the laser cable to the control board.

4- Install Accessories

Attach Air Assist pump and tubing (included).
Install honeycomb bed or rotary module if used.

YUMI Laser Module

5- Connect Power & USB

Plug in the supplied 12V adapter.
Connect USB cable to your computer if controlling via software.

1.4.3 Belt Tension Adjustment¶

Belt Tension Adjustment

Proper belt tension is important for accurate engraving and cutting.

Steps:

Locate the Y axis belt.
With the machine powered off, gently press each belt at the midpoint.
They should not be too loose or too tight. They should feel firm, with about 3–4 mm of deflection when pressed.
If a belt is too loose or too tight, adjust using the belt tensioners on the frame.
Make sure both sides are equally tensioned to avoid skewed movements.
Re-check after a few hours of operation, as new belts may stretch slightly.

A belt that is too loose can cause layer shifting, while a belt that is too tight may cause excessive wear on motors and pulleys.

1.4.4 First Power-On¶

Belt Tension Adjustment

Turn on the main power switch on the socket and then turn the safety key.
Ensure that Air Assist is working (you should hear airflow).

Belt Tension Adjustment

The laser head should remain off until commanded by the software.

1.4.5 Safety Reminder¶

Wear laser safety glasses before testing.
Keep flammable materials away from the working area.
Never operate the machine unattended.