These links I would recommend to anyone investigating the CNC and 3D printing world. Please give me some feedback and maybe I can add some more.
Owners of Mach3. It’s a great CNC application and they also include many tools for getting your art, or dxf files converted to g-code (the code that is interpreted into step signals and direction signals).
The main purpose of this website (the mission) is to offer free to low cost solution to provide automated fabrication to hobbyists.
Rockcliff Machine, for the past 20+ years, has been designing and building custom, industrial Machines.
They are selling extruders and hot ends