Longer Laser Rotary Roller

The Longer Laser Rotary Roller is a useful accessory for laser engraving curved objects. Unlike flat materials, cylindrical items such as pens, jars, and bottles require a different engraving method to keep the laser focused.

By rotating the object during engraving, the rotary roller helps laser engravers create clear and accurate designs on curved surfaces. This article explains how the LONGER Rotary Roller works, how to install it, and how to choose the correct settings.

Why Do You Need a Laser Rotary Roller?

Everyone who uses a laser engraving machine knows that the laser beam needs to stay focused on the engraving surface to achieve accurate results.

Assuming the laser needs to maintain a 50mm distance between the laser module and the engraving surface to stay in focus, once the correct distance is set, the laser can engrave any point on a flat surface because the distance remains the same across the entire working area.

However, if the engraving surface is not flat but curved, this distance is no longer consistent. As shown in the image below, the focus point (fixed at point A) is lost when the laser module moves away from the original focus position.

How Does the LONGER Laser Rotary Roller Work?

The LONGER Laser Rotary Roller solves the focus problem by rotating the object instead of moving the laser module along the curved surface. During engraving:

• The rotary roller rotates the cylindrical object.
• Each part of the surface moves into the laser focus position.
• The laser module only moves along the X-axis.

This keeps the engraving distance consistent and helps create clearer designs on curved surfaces. For this method to work properly, the object should have a cylindrical shape. If the object is not cylindrical, the focus issue may still occur in another direction.

Installing the LONGER Rotary Roller

Installing the LONGER Rotary Roller is simple. To use it with the LONGER Ray5 laser engraver:

1. Connect the rotary roller to the Y-axis connector of the machine.
2. The laser module will continue moving along the X-axis.
3. The Y-axis movement will be transferred to the rotary roller.

After installation, the rotary roller controls the rotation of the engraving object instead of the Y-axis movement of the laser module. This allows the laser engraver to work with cylindrical materials while maintaining the correct engraving process.

Laser Engraving Settings with Rotary Roller

The engraving settings are similar to those used for flat materials. For example:

If you engrave a 10 × 10cm image on a flat surface, the rotary roller will create the same 10 × 10cm engraving size on a cylindrical surface.

The difference is only the movement method. A simple comparison is removing a label from a jar:

• When attached to the jar, the label is curved.
• When placed on a flat surface, it becomes flat.
• However, the label size remains the same.

The same principle applies to rotary engraving.

How to Adjust Rotary Roller Settings

In order for the movement steps to be respected, the Rotary Roller must be set differently according to the size of the object on which you intend to make the laser engraving. In detail, about the gear of the roller, you can refer to these dimensions in order to keep the correct steps:

• Distance between two axes is 5mm, suitable for engraving 6-38mm diameter objects
• Distance between two axes is 23mm, suitable for engraving 38-70mm diameter objects
• Distance between two axes is 41mm, suitable for engraving 70-102mm diameter objects
• Distance between two axes is 59mm, suitable for engraving 102-134mm diameter objects
• Distance between two axes is 77mm, suitable for engraving 134-166mm diameter objects
• Distance between two axes is 95mm, suitable for engraving 166-200mm diameter objects

Conclusion

The Longer Laser Rotary Roller expands the engraving possibilities of the Longer Ray5 by allowing users to work on cylindrical objects that are difficult to engrave with a standard setup.

With the correct installation and roller settings, creators can easily engrave more personalized products, including pens, jars, and other curved materials.