This 3D graphics editing tool can be easily used for molecule creation. Falco Molecule is a 3D graphics editor for molecule creating. You can use this OpenGL editor in order to generate chemical molecules
LWALL is an AutoCAD or BricsCAD add-on for 3D reinforcement of L retaining walls. It is a very useful program for designers, automatically generating execution drawings and reinforcement quantity lists for concrete L-type retaining walls.
Design of furniture. An add-on for AutoCAD at least 2013! You can project bodies composed from plates and assemblings. Holes, grooves or edgings can be applied. Execution drawings and lists are automatically generated.
An add-on for AUTOCAD or BricsCAD, which determines the unfolded section of one set of 3DSOLID, 3DMESH or 3DFACE entities and vertical planes passing through a 2D POLYLINE which may contain arcs, in XOY plane. It also extract multiple PDF from a DWG.