Buildbotics CNC Controller

(40 reviews) Write a Review
  • Front View
  • GST280A with cord
  • WiFi plugged into Buildbotics Controller
  • DB15 Breakout Box (Female)



  • 4 stepper motor outputs
  • Control and configure from your web browser or plug a monitor, keyboard, and mouse in directly.
  • Gamepad manual control
  • Remote video monitoring (optional)
  • Wired or wireless, WiFi builtin (optional USB WiFi antenna available)
  • 4 USB ports
  • 10 programmable digital inputs available for limit switches, probe interface, and estop
  • 5 programmable digital outputs available for tool enable, tool direction, flood, mist, and fault outputs.
  • PWM, 0-10V Analog, and RS485 (VFD) spindle control 
  • 250k steps/second on each motor output
  • 24 - 48 Volt DC power input
  • Robust inrush management 
  • 5 Volt I/O
  • Accessible step and direction signals (DB15 breakout box option recommended)
  • Over voltage protection on logic inputs
  • Up to 1/256th microstepping
  • S-Curve path planning
  • Understands most common GCodes
  • 3D Visualization of GCode paths
  • Accurate estimated time to completion.
  • Free CAMotics GCode verification software
  • 100% Open-Source
  • And much more...


60 Day Money-back Guarantee

If you are not 100% satisfied, return the product to us within 60 days and we'll refund the purchase price. Note, shipping costs will not be refunded.

Visible signs of abuse will void this guarantee.


  • The Buildbotics CNC Controller
  • A Logitech F310 gamepad for manual control
  • DB25 breakout box for easy access to all I/O
  • 4 x 10-foot motor cables
  • 1 x DC power supply cable


  • Mean Well GST280A48-C6P power supply (Fully enclosed 48 volt, 280 Watt power supply)
  • Mean Well LRS-350-36 (48V, 350 watt power supply)
  • USB webcam
  • USB WiFi adapter
  • DB15 Breakout Box (You'll need this if you plan to bypass the internal step and direction signals and use external drivers)

40 Reviews

  • 5
    Great controller for the price

    Posted by Geordon on Dec 16th 2023

    This is a great controller. I used it in a retrofit of a Dyna Myte 2400 and it controls the stepper motors with ease. I am able to feed at 50-60 IPM in the Z and Y axis and 90 in X. The motors are able to deliver ~230-300 Newtons of force on each axis before stalling at top speed (about 50-65 lbs). This should be enough to cut any material. The spindle now seems to be the weak link. I would highly recommend this controller.

    On a side note: Can the software be updated to save the motor amp setting up to 8? Right now when it powers down it drops to 6.

  • 5
    Great customer service

    Posted by Bill Oliver on Nov 20th 2023

    Doug has given me the best customer service ever! He is always so very knowledgeable and spends time with me any time I have needed him. I had issues with my machine and it turned out not to any issue with the controller, he still helped me to figure the prolem to a great solution! THANKS DOUG

  • 5
    3+ Years Later

    Posted by Bob on Jun 1st 2023

    I'm still loving my Buildbotics controller. However, I'm even more impressed how Doug, one of the principals behind buildbotics is still providing top notch, beyond the call of duty customer service. 3+ years later he still treats me like a prospect before the sale. I needed my controller fixed. I shipped it to him, and I had it back in about one week. Working like a charm. If you want a controller that's awesome, that has even more awesome after the sale customer service, you've come to the right solution.

  • 5
    plug and play

    Posted by Evan Goodwin on Sep 13th 2022

    I built an unconventional custom 3-axis machine (X-A-Z) and got it operational within 4 hours of sitting down with the controller and mechanical system. I was able to find and modify a Fanuc post from Fusion's library with very little development time. When we did run into problems support (email and phone) from Buildbotics was excellent. I can't say enough about how pleased I am with my first custom CNC machine R&D project.

    I have no doubt that I will order another controller in the next couple of months for another specialty machine.

  • 5
    Great customer service

    Posted by David a Mello jr on Jul 17th 2022

    Just here to say Thank you Doug ,for top notch customer service He taught me a lot about his controller and programming it ,He always there to troubleshoot problems and answer question I would highly recommend buying his controller.He has a passion for what he does and he's a great teacher keep up the good work Doug.Thank you

  • 5
    Great product with even better service

    Posted by Robert Stewart on Mar 13th 2022

    I've had my controller for over 2 years and to this day I haven't had as much as a hiccup with it. Not only has it ran flawlessly, but any time I had a question about it I had a reply back that day. My primary use has been on a 3 axis CNC router, but I've toyed around with a rotary axis and even a diode laser. I highly suggest this controller and I am sure I will be buying another one when I finish my new machine.

  • 5
    Excellent product, easy and intuitive to learn and work with, no surprises

    Posted by Alex Reichstadt on Feb 14th 2022

    We decided to build our own CNC router and obtained a kit from I decided on the buildbotics controller due to its foundation in open source and the level of transparency. I am happy to pay for someone maintaining and open to suggestions, which such approach suggests to me. I was on spot with my assessment.
    Everything was excellent, the product shipped on time, everything was complete and well documented.
    I didn't know much about spindles and for lack of experience had obtained a somewhat exotic spindle from amazon, but as it turned out it is based on the V70 controller.
    With Doug's support I was able to connect my VFD to the controller and had my router running perfectly. This has been one of my most rewarding learning experiences due to the level of support as well as the excellent documentation and quality of the product itself. I see no challenge in adopting this controller for any project regardless of size. The design is so open and flexible that extending a setup is easy.

  • 5
    Great Product

    Posted by John Burks JR on Jan 4th 2022

    This is my second Buildbotics controller. Outstanding product.

  • 5
    Excellent controller system

    Posted by Shannon Bailey on Dec 31st 2021

    This is a great setup. Use it for my 4 axis cnc router. Works perfect and easy to setup. They also have top notch customer service. The best response time of anyone I have ever dealt with and very helpful. Highly Recommend.