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AutoCAD 2012 for 1:1 3D model making/printing? Answered

The title just about sums up my question. I am using AutoCAD 2012 to make 3D models for the intent of 3D printing. However, all the models I make in CAD are smaller then they are showing. For example, I draft a 5x5x5 cube, and export it as an STL. Then open in a a few different STL viewers, and the cub has shrunk down to about 2.5x2.5x2.5.

Now, I can always just scale up my models to fit the needed size, but if I can get CAD to agree with me to make a 5x5x5 cube that will really come out to be 5x5x5, that would make things easier. 

Also, as a precursor, I have changed the units in CAD to match my needs, but it the models are still coming out small



I've had issues with other packages and STL, not just AutoCAD. It may be a generic problem with the format ! I use Alibre, and some tools accept its STL out, in scale, some don't.

This from http://www.rmweb.co.uk/community/index.php?/topic/69074-autocad-2013/"

"... As Paul says the export to .stl function is fairly recent - remember to set facetres to 10 as, iirc I think this affects the resolution of the .stl.... "


Lucky Balaraman

I actually just noticed that. Sketch-up seems to be giving me the same sort of hassles..

Hmmm, didn't have this problem with CATIA V5 and Instructable's printers.