How to Prepare Your Files for Laser Cutting
Getting your design file ready for laser cutting isn't complicated, but a few key steps can save you time, money, and frustration. Whether you're working with vector graphics or preparing your first project, understanding file requirements upfront means faster turnaround and better results.
Use Vector Formats, Not Raster Images
Laser cutting software reads vector files—think Adobe Illustrator, CorelDRAW, or Inkscape. These formats store shapes as mathematical paths, not pixels, so they scale perfectly to any size without loss of quality. Common vector formats include .ai, .pdf, .eps, .dxf, and .svg. If your design is in Photoshop or PNG format, you'll need to convert or redraw it as a vector first. Raster images can be used for engraving, but cutting always requires vectors.
Set Up Your Layers Correctly
Most laser software uses layers or color-coding to distinguish between cutting and engraving operations. Typically, red lines indicate cuts and other colors indicate engravings. Before you send your file, confirm with your laser shop which color scheme they use. Make sure your cut paths are on a separate layer or color from any engraved details. Clean, organized files speed up the process and reduce the chance of mistakes.
Account for Kerf (Material Loss)
The laser beam has a width—usually around 0.1mm to 0.15mm depending on your material. This width removes material as it cuts, an amount called "kerf." If you're designing precise parts that need to fit together, account for kerf in your measurements. For example, if you want a box with interlocking sides, slightly adjust your slot sizes. Your laser shop can advise on kerf amounts for your specific material and equipment.
Double-Check Your Dimensions
Verify that your file dimensions match your intended output size. If you designed a 12-inch sign but your artboard is set to 12 feet, you'll have a problem. Include dimensions in your file or in a note to your shop. Also confirm your material will fit in the cutting area—American Laser Cutter's largest machines handle pieces up to 4' × 5', but if you're cutting multiple items, the arrangement matters.
Simplify and Weld Where Needed
Remove any unnecessary points, overlapping lines, or hidden objects from your design. Duplicate paths or stray lines can confuse laser software and cause unexpected results. If you have shapes that should be one unified cut, weld or combine them into a single path. Simple, clean files process faster and cut cleaner.
Ready to send your design to a professional laser shop? Visit americanlaserco.com to discuss your project and get expert guidance on file setup.