Difficult question.IGES(stl is much better) is very bad supported by free tools.So i got curious and browsed a little bit. Results :
This thing is demo software, but just limited in no more of 320 elements.Dunno what that means, but if is what i think, ur single piece model scan should open and convert...
http://www.durst.de/english/dowload_testsoftware.html
Free one. A converter , gpl, to convert IGES to *ac of ac3d comercial modeller. bellow of this link, to free modellers that open ac3d format. (ms dos tool, I think.Should be easy.)
http://www.on-the-web.ch/3dc/
this one could serve you convert the ac3d format to something much more common...
It supports a load of formats, maybe even iges, but if not, if at least it has ac3d import, u could import the files already converted from iges to ac3d in 3dc, above.
http://k3d.sourceforge.net/cgi-bin/wiki?Features
This one also opens ac3d format. Export to common formats.
http://prettypoly.sourceforge.net/index.php3?section=win_binary
Beware what 3dc opens are Varicad IGES, dunno if that's compliant with ur iges, but could be.
Minos.freeware. Seems that opens iges files, and can save to vrml.There's a LOAD of tools and ways to convert a vrml.Ask if u don't know any....(I've read somewhere ir not only output, but also imports IGES...)
http://perso.wanadoo.fr/rleboite/caps.htm
This thing is demo software, but just limited in no more of 320 elements.Dunno what that means, but if is what i think, ur single piece model scan should open and convert...
http://www.durst.de/english/dowload_testsoftware.html
Free one. A converter , gpl, to convert IGES to *ac of ac3d comercial modeller. bellow of this link, to free modellers that open ac3d format. (ms dos tool, I think.Should be easy.)
http://www.on-the-web.ch/3dc/
this one could serve you convert the ac3d format to something much more common...
It supports a load of formats, maybe even iges, but if not, if at least it has ac3d import, u could import the files already converted from iges to ac3d in 3dc, above.
http://k3d.sourceforge.net/cgi-bin/wiki?Features
This one also opens ac3d format. Export to common formats.
http://prettypoly.sourceforge.net/index.php3?section=win_binary
Beware what 3dc opens are Varicad IGES, dunno if that's compliant with ur iges, but could be.
Minos.freeware. Seems that opens iges files, and can save to vrml.There's a LOAD of tools and ways to convert a vrml.Ask if u don't know any....(I've read somewhere ir not only output, but also imports IGES...)
http://perso.wanadoo.fr/rleboite/caps.htm