Id buy that for five dollars

Circuit Break Podcast #216

I’d Buy That For Five Dollars

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March 18, 2020, Episode #216

Stephen solves his VFD EMC problem and surfaces the spill board on the CNC machine. Parker starts working on Zebra Printers and learning ZPL and JS.

Parker

  • Python PDF
    • Looked at peoples suggestions and none really did what I needed
    • FPDF will do for now since I have made a template already
    • Most suggestions are building HTML then converting to PDF which is fine but not really a good solution
  • Zebra Printers
    • ZPL or Zebra Programming Language
      • ZT230 
      • ZD420
    • My process so far for making a ZPL webapp thingy
      • Zebra Designer 3 for Developers
        • Makes the Template
        • Push Template over to printer
        • Use Variables for fields you want to “input”
      • Zebra Setup Utilities
        • Allows talking to the printer easily 
      • Zebra Browser Print SDK
        • Makes a USB bridge to a local web server
      • Web Server for Chrome
        • Used to point to where your application is at
      • Application is written in Javascript

Stephen

  • CNC is fully functional!

    • Calibrated the three axis
      • Ran cable “tubes”
      • Set up spindle control
      • Table surfacing
        • 4 flute
        • 2&1/32 in diameter surfacing bit
        • 12,000 RPM
        • 100ipm
        • 0.005-0.01 DOC
  • VFD EMC
    • Pages 10-12
    • VFD cables are to have the shield (screen) connected at both ends
    • This is an impedance thing
    • Shield should be at least 80% coverage
    • Foil and braid is best but most expensive typically

Rapid Fire Opinion

Cnc view 1
Cnc view 2

About the Hosts

Parker Dillmann
  Parker Dillmann

Parker is an Electrical Engineer with backgrounds in Embedded System Design and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. The following year he designed and produced an Atari 2600 video mod to allow the Atari to display a crisp, RF fuzz free picture on newer TVs. Over a thousand Atari video mods where produced by Parker from 2006 to 2011 and the mod is still made by other enthusiasts in the Atari community.

In 2006, Parker enrolled at The University of Texas at Austin as a Petroleum Engineer. After realizing electronics was his passion he switched majors in 2007 to Electrical and Computer Engineering. Following his previous background in making the Atari 2600 video mod, Parker decided to take more board layout classes and circuit design classes. Other areas of study include robotics, microcontroller theory and design, FPGA development with VHDL and Verilog, and image and signal processing with DSPs. In 2010, Parker won a Ti sponsored Launchpad programming and design contest that was held by the IEEE CS chapter at the University. Parker graduated with a BS in Electrical and Computer Engineering in the Spring of 2012.

In the Summer of 2012, Parker was hired on as an Electrical Engineer at Dynamic Perception to design and prototype new electronic products. Here, Parker learned about full product development cycles and honed his board layout skills. Seeing the difficulties in managing operations and FCC/CE compliance testing, Parker thought there had to be a better way for small electronic companies to get their product out in customer's hands.

Parker also runs the blog, longhornengineer.com, where he posts his personal projects, technical guides, and appnotes about board layout design and components.

Stephen Kraig
  Stephen Kraig

Stephen Kraig is a component engineer working in the aerospace industry. He has applied his electrical engineering knowledge in a variety of contexts previously, including oil and gas, contract manufacturing, audio electronic repair, and synthesizer design. A graduate of Texas A&M, Stephen has lived his adult life in the Houston, TX, and Denver, CO, areas.

Stephen has never said no to a project. From building guitar amps (starting when he was 17) to designing and building his own CNC table to fine-tuning the mineral composition of the water he uses to brew beer, he thrives on testing, experimentation, and problem-solving. Tune into the podcast to learn more about the wacky stuff Stephen gets up to.

Special thanks to whixr over at Tymkrs for the intro and outro!

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