Raymoto App Parameter Guide

① Power (%):
Sets the laser output power during processing. Higher power produces deeper engraving or marking results. Range: 1–100.

② Speed (mm/s):
Sets the movement speed of the laser beam during processing. Lower speeds allow the laser to remain on the material surface longer, resulting in greater energy absorption and deeper engraving or marking. Range: 1–100 mm/s.

③ Passes:
Sets the number of times the laser follows the processing path. Increasing the number of passes produces deeper engraving or marking results. Range (Laser Engraving): 1–9.

④ Engraving Density:
Adjusts the spacing between laser scan lines. Lower values produce denser scan lines, resulting in finer engraving details. Higher values increase the spacing between scan lines. Engraving density affects the resolution of the engraved image. Range: 1–100.

⑤ Scan Mode:
Selects the scanning method for laser engraving.

  • Bidirectional Scanning: The laser is active during both left-to-right and right-to-left movements. This mode reduces processing time but may produce lower engraving accuracy due to mechanical backlash. Fine details, especially along image edges, may be less sharp than with unidirectional scanning.
  • Unidirectional Scanning: The laser is active only during left-to-right movement and is turned off during the return stroke. This mode requires more processing time but delivers higher engraving precision and sharper image quality.

⑥ Dot Time:
Dot time refers to the duration of laser dwell at a single engraving point, measured in microseconds (μs). Higher values result in deeper burn depth at each point, while also increasing overall processing time. Bitmap engraving is formed point by point, so this parameter directly controls engraving depth and processing efficiency. Increasing dot time can deepen the burn and may cause dark materials to appear lighter or whitish in the engraved area (as shown below).

⑦ DPI:
DPI is a measurement unit for raster images, representing the number of pixels per inch. Range: 1–1270. Conversion rule: 254 DPI = 100 lines/cm (linear density).

In theory, higher DPI values produce more detailed engraving results. However, due to the fixed laser spot size, if the DPI exceeds the bitmap’s native pixel density, overly small dot spacing will cause excessive overlap of laser spots. This not only fails to improve precision but may also result in darker output and blurred edges, leading to reduced engraving quality.

⑧ Filter:
“Image Mode” is a bitmap engraving–specific parameter.

Available modes: Grayscale, Black & White, Sketch, Engraving (Default: Grayscale)

  • Grayscale: Automatically adjusts laser power and dotting based on image grayscale values. It reproduces smooth tonal transitions with natural gradients and fine image detail.
  • Black & White: Produces a pure binary output with only black and white, without grayscale levels. It offers strong contrast between lines and shapes with clear edges.
  • Sketch: Simulates hand-drawn sketch effects by using varying line density to represent shading. It creates a drawing-like texture with emphasized linework.
  • Engraving (Woodcut Style): Reproduces a traditional woodcut print style with distinct blocks of tone, bold and rugged lines, sharp edges, and a strong artistic appearance.