amylmc Posted October 16, 2012 Share Posted October 16, 2012 Hello, This is rather exciting:). Was wondering would anybody have any idea how to solve this problem of 'Flattening a large 3d model (hospital ground floor) to a 2d floor plan drawing'. The 3d model was made in Rhino and I saved it as a .dwg file because Rhino kept crashing with the command 'make 2d' (file too large maybe :/). I don't know AutoCAD 3d so now, I'm trying to just change the line layers and eventually plot it all, but sometimes when I save the progress.... AutoCAD will delete sections of my work sometimes :/ Disastrous I know but I thought I would give this forum a try , any help would be amazing Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 16, 2012 Share Posted October 16, 2012 You could try Flatten or Flatshot to get a 2D representation in AutoCAD. Quote Link to comment Share on other sites More sharing options...
f700es Posted October 16, 2012 Share Posted October 16, 2012 You can try the Flatten command but it only works on 3D solids. Not sure if your model is made of solids or faces. You can also try flatshot. It will create a new 2D block of your model. You can tell it to hide or show obscured lines. Both might require some clean-up. Quote Link to comment Share on other sites More sharing options...
f700es Posted October 16, 2012 Share Posted October 16, 2012 Ah Remark beat me to the punch Quote Link to comment Share on other sites More sharing options...
amylmc Posted October 16, 2012 Author Share Posted October 16, 2012 Thanx for the help, I've tried both commands twice and the file just freezes :/ I think I'll have to go back into rhino and make 2D small sections at a time, then put it back into AutoCAD to fix up line weights. Damnit. Thankyou anyways Quote Link to comment Share on other sites More sharing options...
f700es Posted October 16, 2012 Share Posted October 16, 2012 Something up with the file then I guess. If it freezes both in Rhino and AutoCAD. Open AutoCAD but not that file yet and click on the big red "A" in the top left corner. Select Recover and then select that dwg file. Might or might do anything but again worth a shot. Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 16, 2012 Share Posted October 16, 2012 How big is this file anyway? What are the specs on your computer? Quote Link to comment Share on other sites More sharing options...
amylmc Posted October 16, 2012 Author Share Posted October 16, 2012 the file is only 420.530MB, but I have several detailed kiosk and cafeteria furniture models that i downloaded from the net. my brother built my tower for me, I'm not all that familiar with specs but this is what it is 8192MB RAM Intel ® Core i5 CPU 760@2.8GHz (4 CPUS)~2.8GHz Windows 7 64 bit lol don't know if that's any help or not.... :/ Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 16, 2012 Share Posted October 16, 2012 420MB? Am I reading that correctly? That's about 11 times larger than any drawing file I've ever had to push around using AutoCAD on a computer similar to yours. Quote Link to comment Share on other sites More sharing options...
amylmc Posted October 16, 2012 Author Share Posted October 16, 2012 hmmh.... yep:? just checked it again . that is correct. (no wonder why my laptop and the uni computers were struggling today).. :/ I'm slowly extracting wireframes from the downloaded models and then make 2d'ing them. .. will be a long night lol Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 16, 2012 Share Posted October 16, 2012 Yeah, that might explain why your laptop was making that strangling noise. 8MB of RAM is not going to be enough to push that puppy around and your graphics chip/card was probably wheezing as well. You should seriously consider using xrefs. Quote Link to comment Share on other sites More sharing options...
SuperCAD Posted October 17, 2012 Share Posted October 17, 2012 Try using SECTIONPLANE. If it is still too big, put some of the objects on different layers and take multiple sections, then you can explode the blocks and combine the objects (or leave them as blocks). Quote Link to comment Share on other sites More sharing options...
ReMark Posted October 17, 2012 Share Posted October 17, 2012 At this point, with a file size of well over 400MB, I don't think there is any AutoCAD command that will ultimately work. The problem is the OP's setup cannot handle the demands being put on it. Quote Link to comment Share on other sites More sharing options...
SuperCAD Posted October 17, 2012 Share Posted October 17, 2012 (edited) Due to the size of the file, I would break it up into multiple files and then XREF those files into a working file. Then I would use a section plane to generate a plan view. A while back I had a file that was huge (not as large as this one, but pretty big), and my computer was having trouble using it (and I have a pretty beefy CAD grade workstation). I broke it up into 15 or more different files, used XREFs and had no problems with it then. Here is a link to the results of my test: http://www.cadtutor.net/forum/showthread.php?60097-3d-blocks&p=408544&viewfull=1#post408544 The file had over 100 different windows with varying trim options, plus it had all of the framing members and finishes that needed to be applied in the field. We only supplied the windows, but the GC asked us to lay everything out to help him make sure it was installed correctly. Edited October 17, 2012 by SuperCAD Quote Link to comment Share on other sites More sharing options...
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