How to export to STEP from AutoCAD?
Sometimes .STEP files can be problematic. Not all the time, it really depends on the file's contents. In my case -using IV2011, either that file wont load or maybe a crash will occur. So it has to be treated in AutoCAD. Here, I'm using AutoCAD Mechanical 2011, and it can export/import .STP files, I don't believe it will export .STEP formats. Here, I'm not exactly sure what the technical difference is, except to describe the STEP format as some kind of "assembly" file format. From time to time the .STEP format will bring problems on the other side, import that file into another CAD program. On occasions, I have to explode the blocks in those files, to get 3dsolids, may have to explode reference blocks several times in order to get everything into 3dsolids. A downside is the file size can get get huge in the .STP format.
Here's an example, this file as . step would not load in IV 2011, so had to import, explode in AutoCad Mechanical, it went from 17K to 23K by exploding the blocks into solids. <iframe title="GrabCAD Cad File" class="grabcad-cadfile" type="text/html" width="468" height="360" src="http://grabcad.com/library/machine-for-study-of-bacteria/embed" frameborder="0" scrolling="no" style="border: 1px solid #ddd;"></iframe>
AutoCAD is Acis based. So the best way is to im- and export data is a .sat file. Many years ago, there was a free online translation service between .x_t(Parasolid), .sat (Acis) and .stp (AP214 and AP203) at STEP Tools INC. It would be great for all engineers, if GrabCAD could offer such a service.
Pour ma part, Lorsque j'ai installé autocad 2013, Inventor Fusion s'install automatiquement. Une fois le dessin fait, ouvrir Inventor Fusion et simplement enregistrer le dessin en format STEP. Sinon, Autocad peut exporter un dwg en Iges.
At the AutoCAD 2013 installation, Inventor Fusion install automatically. Once the drawing is done, simply open Inventor Fusion (open ur drawing) and save the drawing as STEP. Otherwise, AutoCAD can export a dwg file to Iges.