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CAD tip CAD tip # 8729:

Question CAD 
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Q - question

Compare two DWG drawings - identify their differences.

A - answer If you need to compare two DWG files a find their differences - changed, erased and added geometry - you can use the free application Autodesk Design Review (see Download).

This tool employs the DWF/DWFx drawing format and its function "Compare Sheets" allows to highlight in color all differences in the geometry of both drawings.

The workflow of generating DWF from a drawing and comparing two schemes from AutoCAD P&ID is described in a video available in the CAD Video section - see AutoCAD video #12


or on the CAD Studio's YouTube channel:

100% *  CAD 
31.7.2012    30826×   FAQ  
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applies to: AutoCAD · AutoCAD LT · PIant · DWG · DWF/Design Review ·

See also:
Tip 13800:Visually compare 3D geometry in CAD and BIM files.
Tip 13683:Limitations of the LISP language (AutoLISP, VisualLISP) in AutoCAD LT - what to watch out for
Tip 13522:LookupXLS - populating DWG texts from Excel spreadsheets.
Tip 13459:DWG drawing version history directly in AutoCAD.
Tip 13082:PDF published from AutoCAD shows blurred lines.

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Generate hatch patterns automatically from your DWG drawings with
HGEN 2006 More info

Please use these tips at your own risk.
Arkance Systems is not responsible for possible problems that may occur as a result of using any of these tips.