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| wiki:groups:lasercutter:laser_focus_lens_focal_length [2026/08/07 15:58] – phb | wiki:groups:lasercutter:laser_focus_lens_focal_length [2026/09/28 10:26] (current) – admin | ||
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| Understanding laser focus will help you reason about difficulties that you are having with cutting your material. Here is a diagram of a general lens mfor a laser cutter: | Understanding laser focus will help you reason about difficulties that you are having with cutting your material. Here is a diagram of a general lens mfor a laser cutter: | ||
| ![Laser focus diagram](https:// | ![Laser focus diagram](https:// | ||
| - | ![Material | + | Different lenses have different average sizes for the focal point: |
| + | ![Lens size to point focus diagram](https:// | ||
| As the diagram indicates, material surfaces that are placed above or below the focal point will have a larger cutting area than the potential minimum size. A larger area means the same energy is dispersed over a larger area, and therefore may not create as deep of a cut as you are expecting. | As the diagram indicates, material surfaces that are placed above or below the focal point will have a larger cutting area than the potential minimum size. A larger area means the same energy is dispersed over a larger area, and therefore may not create as deep of a cut as you are expecting. | ||