LaserGRBL Linux solution, LaserGRBL is one of the best software.
A Full PLM system based on odoo
LibrePLM integrates CAD editors in Odoo / LibrERP
3D/2D Concrete Reinforcement in Bentley MicroStation
Cross-platform Open-source 2D CAD
Free 3D Mobile CAD
AVR simulator IDE
Application Integration for HPC Multiphysics
Open Source Digital Laboratory - CAM module
CNC Interpreter for Arduino
ECEbuntu - a customized operating system designed for ECE
A CAD/CAM Package for CNC GCode Creation
use mouse to remotely control CNC writing machine