I made my triangle size small and the flat pattern generated great, although processing was much longer. This is why I got 10 from 100 (mm)Ģ) STL only works in UNITS (doesn't recognise cm, mm, inch, etc) so 10 cm becomes 10 unitsģ) For whatever reason changing the STL export settings in Alibre can make the difference between Mesh Unfolder giving complete garbage on a flat pattern or giving a perfect flat pattern. So far this is what I've picked up from you and some other posts:ġ) Alibre internally works in CM and the IGES import / export changes anything to CM so my 100 mm became 10 cm. I noticed you've mentioned to a few people about the setting for STL export. I've been going through a few of the forum posts regarding STL to see what I could find. I'm still on quite a high having aquired such information and now being able to generated flat patterns in Mesh Unfolder (well I'm getting there). Sorry but I just have to say once again, THANK YOU for that great tutorial you gave me on getting the surfaces out of a solid. If not I might start a new thread on the STL export. I'll plod along further and see if I can work anything out. I've Googled about STL export from Alibre and there seems to be quite a few reports of bugginess with STL exports. In my cad, I can delete them plus all the other 100s of mesh triangle lines quite easily to leave me with the basic perimeter (my cut path) but I'm wondering if these "weird" lines are an indication of a less than perfect STL file. Plus the generated flat pattern has a lot of extra "weird" lines which cross over the perimeter of the flat pattern. However once it gets into Mesh Unfolder the scale is all out of whack (not a 10:1 reduction any more but a number with several decimal places) and I don't know if the problem is from the STL file or in Mesh Unfolder. Visually the part (surfaces) look fine in both Doublecad & the STL viewing software. When I opened in a dedicated STL viewing program with measuring facilities the measurements where 10mm. The scale seems to be going from 100mm in Alibre to 10mm in the STL file (or 10 units because when I opened up the STL in a demo version of Doublecad XT Pro, it was 10 inches). I seem to be getting problems when I get to the STL side of things. My Alibre Design version is 2012 Personal with full import / export capability. ![]() ![]() IGES import / export seemed to by fine and all measurements stayed the same at each stage. Scaling is going a bit funny so I checked at each stage of the import / export. I couldn't get away with it that easy could I.
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