If the DXF/DWG file contains a large number of blocks (more than 200), you are prompted to enable the Explode Blocks option. Explode the blocks to improve import performance. Font properties. Adjust font's width. Ignores width factor for AutoCAD fonts and uses font's default width. Input file properties. Select the units of the.

Hi smh55, I wanted to know which exact version of Ultiboard are you using. You can find this out by clicking on Help -> About Ultiboard. One thing I would like you to try is to export one of the sample files to DXF and see if that works.

You can do this by clicking on the blue open button next to the regular one in the toolbar. Select the file named Wizard Routed and open it. Then click on File -> Export. Then select DXF and click on properties. Download film blue.

Then select the board outline, 3D Info-Top and 3D Info-Bottom layers. Click ok and then select Export. Try to open the exported file with a DXF viewer and see if it works. Please let me know what happens.