Process Date: March 2003

The marks shown in the photo were made with a Synrad 48 Series, 25W CO2 laser and FH-Series marking head using an 80mm lens that provided a 116 micron spot size. Marking velocity for the text was 0.75 inches per second (IPS) and 0.5 IPS for the 2D code; two Mark Passes were used for both objects. The entire mark - 2D code and text - was created in a total cycle time of 18 seconds and is readable using a handheld scanner. 

Typically, WinMark Pro's Spot Marking Style is used to mark small 2D codes where each cell is comprised of a single spot. To produce this type of mark, Resolution is set to 50 DPI, 2D Barcode Bitmap is "No", and the overall code is sized to fit the spot.

Each 2D code cell in this example however, was formed using five spots arranged in a pentagon shape. By selecting various 2D Barcode Circle Radius and Resolution settings, different fill patterns for code cells are possible. In this case, a Resolution of 300 DPI and 50% circle radius was set. A close-up view of the code cells is shown in the lower photo, where the pentagon cell pattern is clearly seen.

  
A 0.175”-square Data Matrix code and
human-readable text were marked on Grade 2
titanium sheet using 25W.

This close-up of the individual Data Matrix cells shows the pentagon pattern.