Welcome to Our Community

Some features disabled for guests. Register Today.

      1. Build Progress:
        • Build in Progress...
      Rate This Build
      0/5,
      0 votes
      My Hyatt machine will assist in guitar speaker cabinet fabrication including single and multiple speaker (2, 4, and 6) designs.

      180408-174807.jpg 180423-090137.jpg 180611-002059.jpg 180613-011704.jpg 180613-011732.jpg


      The screw-driven Openbuilds Workbee 1010 was perfect.
      hyatt cad.png


      With limited workshop space, Hyatt will store inside my 9'x5' workbench and rise to working height with a mechanical lift system.
      hyatt lift.png


      Many speaker cabinet designs use finger joinery. Hyatt has a removal split work surface that enables vertical stock end milling. Using vertically-mounted Rockler Vacuum Clamps, vertical stock protrudes through the Hyatt base for stock-edge finger joint cutting.
      vertical.png


      Hyatt steps up motion performance using JMC NEMA23 2NM integrated step-servo motors with driver and position encoder.
      ihss57-20.jpg


      I also wanted a machine that my granddaughter and wife could operate manually (ie no CAD/CAM/Sender). She and I work on various projects together.
      160525-204423.jpg
      181031-143934.jpg
      170510-145128.jpg


      A variety of operator interface projects exist, mostly involve a laptop or RPi. I didn't want this for Hyatt. There's too much to know, the operating learning curve is too long. Hyatt must turn on and be ready to run in 5 seconds. Otherwise my now-impatient granddaughter will go back to playing computer games. I want her to experience the joy of precise machining and project builds.


      That being said, I set off to create an operator interface and machine control system using Bart Dring's GRBL Cypress PSoC5 port that includes the following.

      Hyatt Feature Set
      • CY8KIT-059 based design
      • 4 axis CNC controller, Dring GRBL port - PSoC HW pulse generation, debounce, interrupts
      • Spindle speed/direction control - PSoC PWM
      • Piezo element work piece probe - PSoC opamp, ADC, DAC comparator, interrupt
      • Motor drive current monitor - PSoC analog mux and ADC
      • Supply voltage monitor - PSoC ADC
      • WiFi link with webserver, OTA, flash filesystem, websockets, TCP-serial bridge using ESP8266 - PSoC USART
      Operator Interface
      • 12 illuminated buttons via I2C I/O port expanders - PSoC I2C Fixed master
      • Jog wheel with quad encoder - PSoC quad decoder
      • 20x4 LCD panel display - PSoC I2C Fixed master
      • 3.5" TFT 480x320 resistive touch screen display, attached to X axis gantry - PSoC USART
      • Real-time feed speed override - PSoC ADC
      • SDCard reader- PSoC SPI EmFile library
      • Wireless CNC pendant - DirecTV remote control - my custom IR decoder using PSoC digital logic
      Custom PCB board, 100x100mm 2 layer, mixed through and SMT parts, see holla2040/hyatt

      cy8ckit-059.jpg
      schematic.png
      hyatt-PCB-component-v1.0-180804.png
      wiring.png

      20181201_121837.jpg 20181201_121851.jpg 20181201_121940.jpg 20181201_122033.jpg 20181201_122006.jpg


      My complete build progress is documented here, The Valve Studio WorkBee 1010 Build and holla2040/hyatt .

      I'm almost done and operational. Step-servo performance is unbelievable with 0.001mm positional accuracy (100x better that I need). See

      DaleHyatt.jpg
      Project named after Dale Hyatt, the one of the original K&F (Kaufman and Fender) guitar amp cabinet makers. See "The Sound Heard 'Round the World", Richard Smith, p28.

      Attached Files:

      1. Special Notes

        I love the Hyatt operational simplicity. However that comes with a complexity of design that requires multi-discipline experience. I'm an embedded hardware designer with 25+ experience years, so digging into GRBL, PSoC, and circuit design is what I do.

        Hyatt's desired output, guitar speaker cabinets, is part of my true lifelong passion to learn every aspect of guitar amplifier design. This build lasted a year and I loved every minute of it. Its yet another step on my journey to Tonehenge.
      MaryD, Anthony Bolgar and GeoffH like this.
  • Loading...
  • Build Details

    Build License:
    • MIT Licence (MIT)

    Reason for this Build

    I need a precise machine to eliminate fabrication variance when researching speaker cabinet design choices. If I'm evaluating tonal differences between cab A, B and C where A,B and C might be different material, thickness, joinery, etc. I don't want introduction of additional variables to due to fabrication differences.

    Inspired by

    Clearly the Openbuild's Workbee build videos.
  • Attached Files:

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice