SuperLib Personal Version 

SuperLib is a drawing/picture library management software. Buildin support for (dwg bmp jpg jpeg gif png mng jng ico cur tiff tif tga pcx wbmp wmf emf j2k jp2 jbg jp2 j2k jpc j2c pgx ras psd pic pnm pgm ppm) file format.
drawing picture library management symbol block manager dwg bmp jpg gif resource extract insert

20sim Viewer 

An advanced modeling and simulation program for dynamic systems from the same lab as Tutsim. Easy-to-use and powerfull package for mechatronics, robotics, control engineering, mechanics, hydraulics, etc. From the same lab as Tutsim.
20sim tutsim bondgraaf bond graph bondgraph modeling simulation mechatronics robotics animation dynamic energy physical block diagrams