Thunder Laser USA Beam Buddy HR Head Information & Instructions

1 min read·Updated Jul 2026
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Overview of the Thunder Laser USA Beam Buddy High Resolution Head, including exploded assembly, lens orientation, focal length, and replacement lens links.

Applies toAll machinesTopicGeneral
Beam Buddy HR Head

Description

Our Thunder Laser USA Beam Buddy High Resolution Head is manufactured in Canada to our specifications and this head performs a bit better than the factory legacy HR Head. More on that here: Factory HR Lens vs Beam Buddy Dot Test

Exploded Assembly

Note that the upper and lower lens are not the same and are not off the shelf lens. Links to replacements at the bottom of this article.

Both lens should be "dome up, away from the honeycomb" when installed.

Exploded Assembly Diagram
Lower Lens Upper Lens Side Profile
Lower Lens Upper Lens Side Profile

Focal Length

The nominal focal distance between the surface of the substrate and the bottom face of the head is 3mm.

The file to cut one from 3mm material is attached to this article (below) if you want to make your own.
Focal Length Gauge

Many just use a US Quarter as a focus gauge and have fabulous results.

Replacement

You can get replacement lenses here:

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