I was very excited to try the Windows Beta of Designer - bought the Mac version and have been using that to create vector files to cut on an Epilog Mini Helix laser cutter. Originally, those files were saved and cut via Corel Draw on the Windows only Helix, but I thought, hey! Let's give Designer a try...
But.
It seems that the printer code is rasterizing things before sending to the printer driver, a situation I found with Inkscape as well. This results in the Epilog not seeing any vector lines to cut - making it a raster only process. Queue sad panda. The Epilog uses a custom windows driver, so not sure if anyone has every had success, or if there's something I can change so i can use Designer directly.