Compare two drawings and find differences

I very often receive drawings with minor changes, e.g. rev A to rev B. But because the drawing is complicated, it is very difficult to fine where the changes are if the customer didn't specify them. Is there any good approach to compare two similar drawings and highlight the differences?
Anybody having experience please give me some ideas, thanks a lot!

 

If things are bylayer you can xref the drawing twice into an empty drawing
and rename the second instance of the xref. After that you can set different
colors on the layers for the two xrefs. Or there is a tool from Furix called
CompareDWG that can help you.

--
Best Regards, Jimmy Bergmark
CAD and Database Developer Manager at www.pharmadule-emtunga.com
Take a look at
JTB FlexReport (FLEXlm report tool) - www.jtbworld.com/jtbflexreport
SmartPurger (Purges automatically) - www.jtbworld.com/?/smartpurger.htm
or download some freeware at www.jtbworld.com
More on AutoCAD 2005;
www.jtbworld.com/autocad2005.htm

because the drawing is complicated, it is very difficult to fine where the
changes are if the customer didn't specify them. Is there any good approach
to compare two similar drawings and highlight the differences?

 

Thanks a lot

 

I can't see your original post so I'm just replying to your subject line.
Xref the 2 drawings into a new drawing. Set all color in 1 drawing to red.
Set the other to green. Set lines to merge. Plot the drawing. Black is
equal. Red and Green show differences.

Allen