While cheap hobby CNC mills and routers are great machines that allow you to build ... so speed control of the spindle via Gcode is nigh impossible. They’re also usually built with a piece ...

They are small, light, fast and can be inexpensive. [Raynerd] wanted a new spindle for his CNC machine and thought that a brushless DC motor would be a great platform to build from. [Raynerd ...

Shops that are machining blades for aerospace engines or making molds need CNC controls with high processing speeds to ensure the multi-axis interpolative moves are executed without hesitation.