I've been researching building my own cnc machine for about 2 weeks now and finally settled on a build plan : DIY CNC Router Plans | BootstrapCNC. This is a 2x2 router with plans for a moving gantry and moving table version. I haven't decided on a version yet, but the gantry is basically the same for both, so I can get started. I have some plywood, MDF, screws, and PSUs in the shop but besides that I'll be buying everything else. I want to see how decent of a machine a first timer can make with minimal investment. I think I can get a machine up and running for about $600 all in. I'll document my costs as I go along. Any help, advise, or feedback will be appreciated!

High level plan
  • bootstrapcnc plans made from 3/4 plywood
  • 1/8 aluminum rails
  • GRBL on Arduino Uno
  • TB6560 stepper drivers
  • nema 23 stepper motors
  • 24 V power supply - 2 ATX PSUs in series
  • opensource software
  • router - TBD
  • lead screws - TBD