Cheap CNC: https://amzn.to/35oIgcQ
Also cheap CNC: https://bit.ly/3Ib6eHc
IndyMill: https://indystry.cc/indymill
Dremel CNC: https://www.instructables.com/DIY-3D-Printed-Dremel-CNC/

3018 CNC is probably the most inexpensive machine you can buy. Surprisingly with proper settings and materials, you can achieve really nice results! Sure, it's not the fastest CNC machine but definitely a great inexpensive learning tool for beginners.

Pyramid milling bit: https://bit.ly/3wvkV2Z
Wood bit: https://amzn.to/3xwMhGj
Acrylic bit: https://bit.ly/3xqVj7H
My 3D Printer: https://amzn.to/3cPXDf3
Fusion 360: https://www.autodesk.com/products/fusion-360


Feedrate and depth of cut per pass:
Wood engraving: 500mm/min, 1mm
Wooden tray: 500mm/min, 1mm
Plywood: 400mm/min, 1mm
Acrylic engraving: 600mm/min, 1mm
Acrylic contour: 1000mm/min, 0.5mm
PCB: 300mm/min, 0.12mm and 0.6 for the contour