The timing belt is an important part of the Longer Ray5 laser engraver. It helps control the movement of the laser module and ensures stable and accurate engraving.
After long-term use, the timing belt may become loose, worn, or damaged, which can affect engraving precision and machine performance. This guide explains how to replace the timing belt on the Ray5 10W / 5W laser engraver step by step.
Tools Required
- Hex wrench (Allen key)
- Replacement timing belt
- M5×10 screws with flat washers or M5×6 screws with T-nuts
Step-by-Step Instructions
1. Remove the Old Timing Belt
- Use a hex wrench to loosen the screws securing the timing belt.
- Carefully detach and remove the old belt from the frame.


2. Install the New Timing Belt
① Position the Belt
Place the new timing belt along the designated path (as indicated by the red arrow in reference materials). Ensure the toothed side is facing downward for proper engagement.
② Secure One End of the Belt
You may choose one of the following methods:
-
Flat Washer Method
Attach a flat washer to an M5×10 screw.
Press the belt down with the washer and tighten the screw securely. -
T-Nut Method
Slide a T-nut onto one end of the belt.
Rotate it into position using a hex wrench, then tighten an M5×6 screw to secure the belt.
③ Adjust Belt Tension
Pull the belt gently by hand to achieve proper tension—firm but not overly tight.
Secure the other end of the belt using the same method.
④ Repeat on the Opposite Side
Follow the same steps to install the second timing belt on the left frame.


Important Notes
- Avoid over-tightening the screws, as this may damage the belt.
- Ensure the belt is evenly tensioned to prevent uneven movement or vibration.
- After installation, manually move the laser module to confirm smooth operation.
Conclusion
Replacing the timing belt on the Longer Ray5 10W / 5W laser engraver is a simple but important maintenance task.
A properly installed belt helps maintain stable movement and accurate engraving performance. By checking the belt condition and replacing it when necessary, users can keep their Ray5 working smoothly and consistently.


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