The machinist, or whoever uses the drawing, would not expect to be able to put the drawing under a microscope and get details that don't quite show. Perfect as far as that printer is concerned. So long as the PDF is better than the resolution of the print means, which in percent of drawing extents will vary by drawing size, the print will be "perfect". Both those things set a limit on the visual resolution of the print. And the medium has some surface texture, fibrous for paper, smooth but toothed for drawing film, etc. The printer has a certain resolution, its dots are only so small. The PDF program is making a "virtual print" of a certain destination size. There are several reasons for that, and a couple cases in which it might not be exactly true, but for any meaningful zoom it should be perfect. If you look at the CAD display of the lines in the drawing, they will be essentially perfect, showing good curves at all zoom levels. The CAD input MIGHT use a line width that is larger or smaller, although that may not impact the image portion of the drawing much if at all. The line quality is therefore a function of the way the PDF program translates the CAD input to "effective printing". The file is printed to the PDF program as if it were a printer. Remember, a PDF maker is effectively acting as a printer. What you are seeing is almost 100% under the control of the PDF making program. If anyone has seen this and come up with a workaround (other than exporting to DWG and reprinting with DraftSight!) I would really appreciate hearing from you! I would swear that older versions of Alibre did not have this problem. If I export each sheet to a DWG, load them into DraftSight, and export as PDF I get perfect output with crisp, thin lines that are 100% vector scalable. Since the data used to build an EMF is usually what a windows app uses as the front end input for all print operations I'm theorizing that this problem is built into the windows printing portion of the drawing application and not solvable. In the attached example, the text was projected from the 3D model. Note that this "fuzz" seems to show up mainly on geometry, not text generated by the 2D module. This makes PDF quality quite poor compared to other applications that generate vector PDF output. The lines generated by Geomagic are "fuzzy" at the vector level and made from rather heavy weight segments. This topic has been mentioned a couple of times in the past, but I've never seen any definitive answers.Īttached is a zoomed in shot of what I'm seeing.
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