MatterControl - MatterControl is a free, open source app that lets you organize and manage your 3D prints.
Microsoft 3D Builder - View, capture, personalize, and print 3D models.
Slic3r - STL-to-GCODE translator for RepRap printers Here comes Slic3r! Its features are: - speed
VARKON - Varkon is a very powerful parametric 2D/3D CAD, modeling and application development tool for...
Cura - Cura aims to be a end solution for personal 3D printing with RepRap based machines.
Vectorworks - Vectorworks 2D / 3D CAD and BIM software for Mac or Windows provides one flexible solution for your entire design process. Sketch, model, and present with the ultimate software from start to finish.