Setting this to 90 will scan the laser vertically over the image, progressing from left to right. If you set this to 180, the laser will scan the image from top to bottom. Normally 0, meaning the laser will scan back and forth horizontally across the image, progressing from the bottom of the image to the top. DPI (dots per inch) is just 25.4 / interval. DPI (Dots Per Inch)Ĭontrols the pixel density of the output - this is simply another way of representing line interval that is more intuitive for some. Line IntervalĬontrols the spacing between scanned rows, and indirectly controls 'DPI'. If you do not see this setting, your machine is likely a DSP controller and handles this automatically in hardware. If your machine has low acceleration or you see darker burns at the sides of your fills, you may need to increase the amount of overscanning. When enabled, adds extra moves to the beginning and end of each line to give the laser time to speed up before firing, and slow down afterward. This is useful for engraving slate or glass, where burned areas become lighter. This will invert your image during engraving. When disabled, the laser will engrave traveling one way, then return to the start of the next line, not engraving the return pass. When enabled, the laser will engrave in a side-to-side sweeping motion, engraving in one direction and again for the return direction. So you may need to change this scale depending on the source image being used. If your image does not contain pixel values at these extremes the laser will never fire at exactly those min/max settings. Note: The min to max power scale will effect the entire range from absolute white to absolute black. Increasing this value beyond your lasers firing threshold will allow the laser to fire for absolute white. Min Power is only used when using the Grayscale image mode, and is the minimum power of the laser for pure white. Setting this to a lower value will decrease the power of the laser when engraving absolute black. Max Power is the maximum laser power for pure black. To see a side-by-side comparison of the source and output image, while being able to change both the layer settings described in on this page and the image shape properties, checkout the Adjust Image tool. Instead those are set on a per-image basis and can be accessed via the Shape Properties panel. These settings do not allow you to control things like image brightness or contrast.
Note that on a CO2 laser it's likely that you will be running at a low power and/or very high speed, whereas a diode laser may be run at full power, depending on material. Many of these will be familiar from Fill mode with the rest specific to image engraving.
The image above shows the settings available for images. This mode is only available for image shapes, and lets you choose options that control how LightBurn renders the image data on the laser. Numeric Edits - size, position, orientation