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March 11, 2020, Episode #215
Parker
- Brewery Update
- Pump mount design completed
- 3D printed brackets
- Bending tubing this week!
- Need to finish the last bit of wiring in the electrical box
- Python PDF Creation
- Why do they all suck?
- Currently using fpdf
Stephen
- CNC Update
- Moving…mostly
- Still need to get the X-axis moving
- Sprockets to weld on
- Will try rotational tig welding
- Midi to G-Code
- Motor Cable
- Igus 16/4 plus braided shield
- Chainflex
- Best way to attach the shield?
- Rack Mount Amplifier
- Replaced the transformer last week to boost the votlage
- Went from a 12:230 to a 10:230 ratio for a 20% increase
- Output changed exactly by 20%….go figure!
- Moving…mostly
Rapid Fire Opinion
- 3D printed forms for sheet metal pressing?
- Sort of Worked…
- Interesting to see the progress but it still required a mill to get a usable form
- With more experimentation and proper design of the part to be bent this could be a real option
- 3D printed tool punches as well

3D model of the pump bracket Parker design for his home brewing rig. Modeled with Autodesk Fusion 360.

Slicing the STL file that was output from Autodesk Fusion 360. Parker uses Cura for the slicer currently.

One over night session of printing and the first bracket is off the 3D printer! Turned out great so far!
The CNC Machine in Action!
About the Hosts

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 began his electronics career by building musical oriented circuits in 2003. Stephen is an avid guitar player and, in his down time, manufactures audio electronics including guitar amplifiers, pedals, and pro audio gear. Stephen graduated with a BS in Electrical Engineering from Texas A&M University.
Special thanks to whixr over at Tymkrs for the intro and outro!
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