hfs Posted August 30, 2012 Share Posted August 30, 2012 Hello! I have a 3D geometry in .dwg format ... it is a part of an umbrella membrane structure (see the attached pic.) This geometry is divided into litte pieces. Each piece is a '3D surface' object I need to give this umbrella a thickness! I tried Extrude command; Error! the surface object should be planner I tried surface offset command as explained here http://autocadinsider.autodesk.com/my_weblog/2010/12/offsetting-surfaces-in-autocad-2011.html did not work cuz my object is not a planner surface nor a extruded surface so... what to do experts?! Thanks a lot in advance! Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 30, 2012 Share Posted August 30, 2012 Did you try the THICKEN command? Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 30, 2012 Share Posted August 30, 2012 Surface before using THICKEN command on left. After using THICKEN command on right (now it is a solid). Quote Link to comment Share on other sites More sharing options...
hfs Posted August 30, 2012 Author Share Posted August 30, 2012 Did you try the THICKEN command? Thanks! I will try it! Quote Link to comment Share on other sites More sharing options...
hfs Posted August 30, 2012 Author Share Posted August 30, 2012 [ATTACH=CONFIG]36865[/ATTACH]Surface before using THICKEN command on left. After using THICKEN command on right (now it is a solid). Perfectttttttttttt! Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 30, 2012 Share Posted August 30, 2012 I'll assume that ^ ^ ^ means you are pleased with the results. Good. Quote Link to comment Share on other sites More sharing options...
hfs Posted August 30, 2012 Author Share Posted August 30, 2012 I'll assume that ^ ^ ^ means you are pleased with the results. Good. What I meant by perfectttttt is that I liked your photo I tried it now It worked with a LOFTED Surface (that you can create with LOFT command) Unfortunatly, Did not work with my surfaces they are of type 3D surfaces Thanks for your tip anyway ... waiting for more Quote Link to comment Share on other sites More sharing options...
hfs Posted August 30, 2012 Author Share Posted August 30, 2012 Here are some of those objects [Check the attachment] Part.dwg Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 30, 2012 Share Posted August 30, 2012 The surface I used in the example was a simple flat one. I'll take a look at your part.dwg when I get a chance. Quote Link to comment Share on other sites More sharing options...
Dadgad Posted August 31, 2012 Share Posted August 31, 2012 Welcome to the forum. How did you create the 3D Faces in your drawing? Quote Link to comment Share on other sites More sharing options...
hfs Posted August 31, 2012 Author Share Posted August 31, 2012 The surface I used in the example was a simple flat one. I'll take a look at your part.dwg when I get a chance. Thank you! Quote Link to comment Share on other sites More sharing options...
hfs Posted August 31, 2012 Author Share Posted August 31, 2012 Welcome to the forum. How did you create the 3D Faces in your drawing? I got those from the company that produce this kinda structures. They have used Form-Finding optimization technique to get this geometry. Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 31, 2012 Share Posted August 31, 2012 Why did the company send you this drawing? What are you expected to do with it? I've had no luck so far although I am only on my first cup of coffee. After I have my nine other cups maybe I'll be thinking clearer. Quote Link to comment Share on other sites More sharing options...
Dadgad Posted August 31, 2012 Share Posted August 31, 2012 The object which you supplied in the drawing is a whole bunch of contiguous 3D Faces. I am way out of my element working with Surfaces, Meshes & Nurbs, but as far as I know the 3D Faces in Autocad are always attached to a 3D Solid, and I am not aware of any way to work with those which have become disenfranchised, if you will. Like ReMark I had no luck with it, but I was sufficiently jacked up on fresh hot coffee, that I am unable to blame my lack of success on something less than CRITICAL CAFFEINE MASS. One would imagine that the program capable of this sort of work, could also export a more Autocad friendly representation. Maybe INVENTOR could handle the entity type? Quote Link to comment Share on other sites More sharing options...
hfs Posted August 31, 2012 Author Share Posted August 31, 2012 Why did the company send you this drawing? What are you expected to do with it? I've had no luck so far although I am only on my first cup of coffee. After I have my nine other cups maybe I'll be thinking clearer. hahaha Thank you for spending your coffee time on thickening my membrane I got it to make a wind simulation (CFD) on it using OpenFOAM Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 31, 2012 Share Posted August 31, 2012 I tried exploding one of the faces but that failed since it is non-planar. I also tried recreating the shape of one of the faces uses a 3dpolyline, which did work, but it can't be extruded (non-planar) and when I make a copy slightly above it and try to loft it that doesn't work either. The thicken command obviously doesn't work because it is not a surface. One must be carefully with the use of terminology as it can lead to misconceptions about the nature of the object one wishes to edit. Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 31, 2012 Share Posted August 31, 2012 Please answer my questions in post #13. This is funny why?? Quote Link to comment Share on other sites More sharing options...
hfs Posted August 31, 2012 Author Share Posted August 31, 2012 Thank you guys! I have tried also what you have done! no use! I guess I am left with drawing the whole membrane again ... I will use the old one and draw over it ... Let's see what happens,,, Thanks again Quote Link to comment Share on other sites More sharing options...
hfs Posted August 31, 2012 Author Share Posted August 31, 2012 Please answer my questions in post #13. This is funny why?? hahaha I have answered in #15 I need to have an STL file to use it in OpenFOAM ... to deal with the geometry as an obstacle in the wind way Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 31, 2012 Share Posted August 31, 2012 Well good luck. Maybe you should dial down the laughing gas one notch too. Quote Link to comment Share on other sites More sharing options...
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