Copper Pour™


(33 reviews) Write a Review
  • Copper Pour™ INTERFACE CNC Touch  CP-3100


INTERFACE puts control in your hands, enabling you to Jog, Home, Zero, Load and Run jobs all from a stand alone plug and play hand held pendant.

No computer required! Run your jobs directly at your machine with the OpenBuilds INTERFACE.
Its never been easier, simply load the job, set the starting point and run it.

INTERFACE was designed as a purpose built tool that is a part of your machine. It is rugged, user friendly and it will quickly become a favorite in your shop!



  • Standalone Human-Machine Interface for controlling your machine
  • Tactile haptic and audible feedback system for confirmation in noisy CNC environments
  • Supports Homing, Jogging, Probing, Zeroing and Running your CNC (of USB thumb drive)
  • Capacitive touch switches for the UI
  • Plug-and-play with OpenBuilds BlackBox Motion Controller
  • Can easily be mounted to your machine front with our Mounting Kit Option (Magnet not included)
  • *Note: Can be used with any Grbl 1.1 based controller, which has RX/TX/GND/5V pins (may require you to make your own cabling)

What is Included

  • (1) Interface
  • (1) 2.5m Connection cable RJ12-RJ12 for BlackBox X32 CNC Controller
  • (1) USB Drive

Product Specifications

  • 240Mhz 32-bit Xtensa Dual-Core Microprocessor
  • 520Kb SRAM
  • 4Mb Flash
  • 802.11 b/g/n Wifi (Firmware upgrades)
  • Bluetooth v4.2 and BLE
  • High Contrast Color TFT LCD display
  • LED Backlit Capacitive Touch buttons
  • Beeper
  • Vibration Motor
  • USB-C Connectivity
  • Grbl 1.1f and newer Support
  • FAT32 Flash Drive Support
  • RoHS and CE Certified

Assembly/Support/Documentation/3D Models

Easy follow along tutorial videos – awesome community support – top notch documentation

Support   OpenBuilds Support Docs   CAD Files

This design or build includes CopperPour, LLC design work(s) shared Open Source under the CC BY-NC-SA 4.0 License

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33 Reviews

  • 5
    Interface CNC Touch

    Posted by Kenneth Macklem on May 5th 2024

    This product is amazing. It has completely changed the way I work. I am much more efficient now. I use this with the probe.

  • 5
    NO More Computer

    Posted by Jerry Thowson on Mar 20th 2024

    I purchased this interface just because I was ruinnning a windows 7 computer. Is the best purchase Ive made this so simple to use no more waiting for computer fire up cords going everywhere, only one cord from interface to the BlackBox plug in you USB with your code and the normal probe adjustment and you off no sawdust getting into your computers Im very happy with this purchase.

  • 5
    A high level device

    Posted by Alain JBT on Feb 28th 2024

    As usual, impeccable customer service. Compared to other light CNC brands that make gadget toys, OpenBuilds Interface is undeniably distinguished. Functional characteristics. The quality of its development and manufacturing Integration into the working environment Its competitive price If your Blackbox controller is properly configured and you have provided the necessary settings, you do not actually need a PC to manage your CNC and carry out all your work. For me, Interface is essential and in perfect adequacy with Blackbox. Thank you OpenBuilds.

  • 5

    Posted by Michael Morgan on Nov 20th 2023

    Worked great out of the box, very complete menu and control. Was able to remove my computer from the dusty shop

  • 4
    New interface

    Posted by Mark Rice on Nov 13th 2023

    It appears to work good . I have only just installed and started using today so far so good.

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