How To Replace The Small X Axis Belt Loop

The small X axis belt can sometimes become 'noisy' enough to warrant replacing. This is often mistaken for bearing noise.

 This noise will sounds like squeaking, growling, like a bearing. But the bearings are likely okay and no lubrication is required here. 

Here is what the noise typically sounds like:

This belt usually gets changed for that reason and not due to a critical failure. There is sometimes a spare belt in the toolbox that came with your laser.

Here is how to replace it:

Gauge the belt tension prior to beginning the process and take some pics of the assembly for reference, just in case

Loosen 4 motor mounting bolts:

The 4 bolts (A) are accessed from the bottom side

Adjust tension screw to remove belt:

Turn tension screw (B) counter-clockwise until there is enough slack to remove the belt

Install new belt:

Remove the old belt and replace with the new one

Tighten the tension adjustment screw:

Adjust the tension screw clockwise until the belt is properly tensioned

Tighten the 4 motor bolts:

Tighten the 4 motor screws to lock it down

Reference Information:

Nova Series Belts

Replacement Belt

• Related Articles

• Example of Belt wear on a Thunder Laser Nova Series Machine

  Preface: This article covers what worn belts may look like on your Nova series machine. Odometer Reading: Using Lightburn's "Get Controller information" we can take a peak at the odometer of the machine. The Nova 51 has over 5000 hours of movement ...

• Bolt Series Belts

  Preface: This article covers Bolt Series Belts for the X, Y, and Z axes. How to read a Belt Part Number: (Note that Length may be omitted when buying bulk or when searching for bulk length belt) Bolt Bolt Plus Bolt Plus 24 Bolt Pro 36 Bolt Location ...

• Odin Series Belts

  Preface: This article covers Odin Series Belts for the X, Y and Z axes. How to read a Belt Part Number: (Note that Length may be omitted when buying bulk or when searching for bulk length belt) Odin 22 Odin 32 Odin 22 Location Length/Part Number Qty ...

• Titan Series Belts

  Preface: This article covers Titan Series Belts for the Z, Y and Z axes. How to read a Belt Part Number: (Note that Length may be omitted when buying bulk or when searching for bulk length belt) Titan 27 and Titan Pro 27 Titan 35 and Titan Pro 35 ...

• Nova Series X Axis Motion Failure

  Preface: This article will cover reasons why your X axis will not move left or right. There can be several different causes from mechanical to electrical, including a failed sensor, failed driver, improper adjustment, belt tension etc. The only way ...