AXCAD 2007
		Axcad is a fully DWG file compatible and AutoCAD command compatible CAD, it is another affordable choice for ex AutoCAD users. AXCAD using DWG as native file format.you... http://www.axcad.com/download/axcad2D.exe - 20.65MB - Download - Screenshot

		TRIANGULATION, ISOLINES, VOLUME & 3DINTERSECTION
		TRIANGULATION performs triangulation of a set of 3D points width compulsory interconnections. ISOLINES determines the curves of intersection of a set of 3DFACE entities... http://rcad.eu/i_triang.zip - 359KB - Download - Screenshot

		ZwCAD
		ZwCAD 2006i, more stable with over 200 enhancements, improve your drawing efficiency. ZwCAD, best alternative to AutoCAD. It can read save and edit the files produced... http://www.zwcad.org/download/zwcad2006ieng.exe - 31.49MB - Download - Screenshot

		ABLD-TkBill
		MITCalc is the multi-language mechanical and technical calculation package. It includes solutions for gear, belt and chain drives, springs, beam, shaft, bolt connection,... http://www.abld.de/Downloadpfad/ABLDTkBill.zip - 5.12MB - Download - Screenshot