Opensource forum seems the most current. https://www.rtai.org/ https://forum.linuxcnc.org/9-installing-linuxcnc https://wiki.linuxcnc.org/cgi-bin/wiki.pl?LinuxCNCVersion2 https://linuxcnc.org/docs/2.8/html/getting-started/about-linuxcnc.html http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Mechanical_Spreadsheet Embedded video for LinuxCNC Outline Making1um (0.00004") - Micron Tolerance DIY Lathe and Grinder 240v 3 Phase High Leg Delta 3d Printing 9x19 Grizzly G4000 Rescue Arduino + Rotary Encoder Bridgeport Series 1 12x34 CNC Mill Project CNC Lathe + Router CNC Power Delivery + FPGA Cerakote Fixed Gantry DIY CNC Router Flatness - Surface Plate Conditioning Gear Generator - Javascript for Fun General Machinery Resources Online Hardinge DSM-59 Turret Lathe Heat Treating Metals IMU - Arduino Inclinometer + Motion DIY Lathe Restoration Lathe Usage Lightweight DIY Plasma Cut Off + Magnetic Workholding LinuxCNC MAHO Mill CNC Conversion Machinery's Handbook - 16th Edition Magnetic Drill Press - Tool Adaptive Reuse Maslow CNC Mechanism by Keown and Faires on Archive.org OLED + Arduino/NodeMCU + I2c Okuma Lathes Physical Properties of Titanium Alloys Radius Cutter - Nice! Sidney Lathes Surface Grinding Tapping Head + Fun Video Tig Hand Welding Aluminum - Santa Cruz Bikes Tig Rotary Table - Fun Video Tips On Manual Lathe High Production TouchDRO Turning Titanium + Vernier Scale ‹ Lightweight DIY Plasma Cut Off + Magnetic Workholding up MAHO Mill CNC Conversion ›