/r/CNC: CNC - For anything CNC related: CAD, CAM, automation, and more! - August 7, 2021 - 04:00
/r/hobbycnc: CNC for hobbyists - A subreddit for enthusiasts of hobbyist CNC machines like the Shapeoko, X-Carve, 6040, etc - April 13, 2021 - 20:24