Use Autodesk Fusion 360 on Linux
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
A Cross Platform and Open Source Electronics Design Automation Suite
A Full PLM system based on odoo
Arma Design Studio - CAD/CAM Software
3D/2D Concrete Reinforcement in Bentley MicroStation
SOLVESPACE is a free (GPLv3) parametric 3d CAD tool.
cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
BoltGenerator is an automated CAD tool which produces 3D bolts.
Did you ever made a production machine on steroids?
Additional resources for OpenSCAD
Free 3D Mobile CAD
Dedicated to computer-aided engineering Linux distribution
Open-Source Shoemaking
A debian image with linux RT kernel, OpenCV345, ROS, and LinuxCNC
Blender plugin slicer that generates gcode for CNC machines.
Parallel finite element analysis
Solution for changing your device into full-feature CNC controller
2.5D CAD CAM emphasis on CAM and toolpaths
Special Raspbian image system
3D CAM program for CNC mills/lathes
CNC machine code generation for 3D models