Here’s a list of every software tool I’m using in this project.

LibreCAD is a free 2D CAD. Every little FlameCut part started in this software.

OpenSCAD – The Programmers Solid 3D CAD Modeler
Used to primary mesh modeling. Here is the place where 2D drawings become STL objects.

FreeCAD: An Open Source parametric 3D CAD modeler
Used to put all parts togheter.