Cura - Cura aims to be a end solution for personal 3D printing with RepRap based machines.
FreeCAD - An open-source parametric 3D modeler
Slic3r - STL-to-GCODE translator for RepRap printers Here comes Slic3r! Its features are: - speed
Repetier - Software for controlling RepRap style 3D-printer like Mendel, Darwin or Prusa mendel.
nanoDLP - NanoDLP is a host and control software for SLA / DLP 3D printers.
PrusaSlicer - PrusaSlicer (formerly known as Slic3r PE) is our own in-house developed slicer software based on the open-source project Slic3r.