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lisa · 14th December 2008, 04:10 PM

Make sure you have either just a section of an object or a polyline, versus a completely closed object so the extrusion isn't overlapping itself. (I'm probably not explaining this terribly well... )

i.e. You can't extrude a whole cube, but you could select the top of the cube and extrude it and that would work.

14th December 2008, 04:10 PM	#2
lisa Senior Member Professional user Join Date: Mar 2005 Location: Phoenix, AZ Posts: 917	Re: Extruding from a Surface Make sure you have either just a section of an object or a polyline, versus a completely closed object so the extrusion isn't overlapping itself. (I'm probably not explaining this terribly well... ) i.e. You can't extrude a whole cube, but you could select the top of the cube and extrude it and that would work.