74HC595, A, ACS711KEXLT-15AB-T, Adventure, Apparatus, Based, Bender, Birth, Centrifugal, Cheeseburger, Child, Contest, Design, DOOM, electronics, Engineering, Falcon, Force, Fredman, MacroFab, Millennium, of, PinoTaur, Podcast, SAO, Simulation, Text, Tunnel, Wind, Wire

<img src="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI.png" class="attachment-post-thumbnail size-post-thumbnail wp-post-image" alt="engineering podcast" srcset="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI.png 900w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI-150x67.png 150w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI-250x111.png 250w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI-768x341.png 768w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI-700x311.png 700w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI-600x267.png 600w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mep179_FI-120x53.png 120w" sizes="(max-width: 900px) 100vw, 900px" />

engineering podcast

Podcast

179

Parker Dillmann | July 8, 2019

MEP EP#179: Mach 3 Cheeseburgers

Podcast Notes

The MacroFab Engineering Podcast Useless Machine Contest Sponsored by Mouser Electronics is in full swing! We have cash prizes up for grabs. Contest Ends August 10, 2019. Check out the Macrofab Blog and Podcast Episode 175 for more contest details.

Parker

PinoTaur Updates
- Simulated Mosfet Driving
  - Limiting the 74hc595 driver to 10mA
- Solenoid Mosfet Current Sensing
  - - ACS711KEXLT-15AB-T

DOOM SAO
- Hardware Repo is assembled
- Software Next
  - Detailed instructions on building the environment
  - How the main code functions

Stephen

Fredman clip
- Parker brought up the SM57 microphone holder he 3D printed to compare to the clip that was bought online
Text Based Adventure Update
- Majority of the story, characters, and environment are designed

R.F.O.

Cheeseburger Wind Tunnel Tests
- Could this be McDonald’s wind tunnel tests so you can eat burgers faster?
- Millennium Falcon wind tunnel tests at Mach 3!
Wire Bender Aims To Take Circuit Sculptures To The Next Level
- Great example of 3d printing done right!
Apparatus For Facilitating The Birth of A Child by Centrifugal Force
- Patent
- If you could design something that would operate by using Centrifugal Force what would it be?

Visit our Public Slack Channel and join the conversation in between episodes!

<img aria-describedby="caption-attachment-5245" class="wp-image-5245 size-large" src="https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-700x427.png" alt="MacroAmp PCB Render." width="700" height="427" srcset="https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-700x427.png 700w, https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-150x92.png 150w, https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-250x153.png 250w, https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-768x469.png 768w, https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-600x366.png 600w, https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp-120x73.png 120w, https://mxcdn.macrofab.com/wp-content/uploads/2019/06/MacroAmp.png 1207w" sizes="(max-width: 700px) 100vw, 700px" />

MacroAmp PCB Render.

Stephen’s MacroAmp PCB render. This project is sponsored by Mouser Electronics!

<img aria-describedby="caption-attachment-5264" class="wp-image-5264 size-large" src="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-700x517.png" alt="Simulation schematic for the PinoTaur. IRL540 mosfet with a 100 ohm resistor to keep the drive strength of the 74HC595 in check." width="700" height="517" srcset="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-700x517.png 700w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-150x111.png 150w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-250x185.png 250w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-768x568.png 768w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-600x444.png 600w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1-120x89.png 120w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation_1.png 832w" sizes="(max-width: 700px) 100vw, 700px" />

Simulation schematic for the PinoTaur. IRL540 mosfet with a 100 ohm resistor to keep the drive strength of the 74HC595 in check.

Simulation schematic for the PinoTaur. IRL540 mosfet with a 100 ohm resistor to keep the drive strength of the 74HC595 in check.

<img aria-describedby="caption-attachment-5265" class="wp-image-5265 size-large" src="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/mosfet-simulation-700x207.png" alt="Current of charging up the gate on the IRL540 in the simulation." width="700" height="207" />

Current of charging up the gate on the IRL540 in the simulation.

Current of charging up the gate on the IRL540 in the simulation.

<img aria-describedby="caption-attachment-5266" class="wp-image-5266 size-large" src="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-700x355.jpg" alt="The compairson between the two SM57 clips. Parker's 3D printed one is on the right. " width="700" height="355" srcset="https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-700x355.jpg 700w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-150x76.jpg 150w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-250x127.jpg 250w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-768x390.jpg 768w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-600x305.jpg 600w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips-120x61.jpg 120w, https://mxcdn.macrofab.com/wp-content/uploads/2019/07/clips.jpg 1024w" sizes="(max-width: 700px) 100vw, 700px" />

The compairson between the two SM57 clips. Parker's 3D printed one is on the right.

The compairson between the two SM57 clips. Parker’s 3D printed one is on the right.

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

About The Hosts

Parker Dillmann is MacroFab's Co-Founder, and Lead ECE with backgrounds in Embedded System Design, and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. He also runs the blog, longhornengineer.com, where he posts his personal projects, technical guides, and appnotes about board layout design and components. Parker graduated with a BS in Electrical and Computer Engineering from the University of Texas.

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.

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