What is DPI (Dots Per Inch)

DPI is a unit of measurement in dot matrix digital image, indicating the number of image pixels per inch. The setting range is [1, 1270]. When converted into linear density (lines per cm), 100 linear density equals 254 DPI. A higher DPI theoretically yields a finer engraving image effect.

Applicable Machines

DPI function is only available for Bitmap Engrave with xTool F1 and F1 Ultra.

When to Set DPI

Fine image engraving

When fine engraving is required, such as engraving photographs or complex designs, the higher DPI ensures that the details of the image are fully realized.

High-quality product logos

When creating company logos, trademarks, and other images that require high resolution, adjusting the DPI can ensure the clarity and professionalism of the logo.

Artwork creation

When creating artwork, artists can adjust the DPI to control the detail and texture of the work.

How to Set Dot Duration

You can select DPI values in two ways:

1. Move the progress bar.

1. 2. Click on the DPI value and change it directly to your desired data.

Tips & Tricks

DPI and image matching

The original pixel distribution of the bitmap image should be considered when selecting the DPI. When the DPI surpasses the bitmap's pixel distribution, overly dense dots can have a counterproductive effect, causing darker materials to appear whiter (shows in the image below ).

DPI and power adjustment

When setting a high DPI, be sure to consider power matching to avoid overheating or poor engraving.

Consider material characteristics

Different materials respond differently to the laser and may require different DPI settings to achieve optimal results.

Avoid overheating

When engraving dark-colored materials, too high a DPI can cause the material to overheat, resulting in White spot lesions and increased processing time.

DPI and image size

When engraving larger images, the DPI can be appropriately reduced to minimize processing time while maintaining image clarity.