MEP EP#203: Lizard Brain Information - David Gunness of Fulcrum Acoustic

MEP EP#203: Lizard Brain Information - David Gunness of Fulcrum Acoustic

MEP EP#203: Lizard Brain Information - David Gunness of Fulcrum Acoustic

David Gunness

  • Vice President of R&D at Fulcrum Acoustic
  • Lead Product Designer
  • Photographer
  • Copy Writer
  • Ambassador to Italy
  • Facilities Maintenance
  • Director of Calculus
  • Technical Writer
  • Lead Coffee Maker

Fulcrum Acoustic

  • Who are they and what do they do?
  • What does it take to get into sound design?
    • Education?
    • Frequency Theory
  • Passive Cardioid Technology
    • Technology to eliminate rear low frequency radiation
      • Where is this an issue?
    • Active solution
    • Passive solution
    • Patent 10,123,111 B2 “Loudspeaker with passive low frequency directional control”
  • Building a better coaxial speaker
    • What is a coax?
    • Beamwidth
    • How is this validated/tested?
  • Manufacturing enclosures with wood
    • Why wood?
    • Sourcing materials
    • General Design
    • Tolerancing considerations?
    • Finishing and Covering
      • Sanding
      • Painting
      • Spraying materials

Episoder(448)

EP#32: Erroneous Enclosures of Enormous Energy

EP#32: Erroneous Enclosures of Enormous Energy

Podcast NotesStephen brewed a batch of beer over the last weekend with his new electric brewing setup. It is not complete yet but it does work. Stephen converted his brew kettle to include a 4500W hea...

9 Sep 201627min

EP#31: Embedded Brewing with Arduinos

EP#31: Embedded Brewing with Arduinos

Podcast NotesParker designed the Macro Duino! Basically a Arduino clone using Type C USB, a FT230X as the USB UART bridge, and proper power switching with the Ti TPS2113A. See Figure 1. Also supports ...

2 Sep 201633min

EP#30: You won’t believe this ONE WEIRD Engineering trick

EP#30: You won’t believe this ONE WEIRD Engineering trick

Podcast NotesParker is working on streamlining the Selective Solder Process at MacroFab. Writing a script that will take XYRS data and generate the G-Code for the machine.Design work on a calibration ...

26 Aug 201634min

EP#29: Modular Toilet Humor

EP#29: Modular Toilet Humor

Podcast NotesStephen is currently working on DipTrace part libraries and templates for DRC and CAM file generation. Should have an article out next week about it. GitHub repository for DipTrace files ...

19 Aug 201627min

EP#28: Dissolving Energon Cubes

EP#28: Dissolving Energon Cubes

Podcast NotesStephen has been running tests on the Energon Cube for the SSPS. So far everything is working great. Check out Stephen's blog post update:  Super Simple Power Supply "SSPS" Design (Part 3...

12 Aug 201631min

EP#27: If There is a Bug, You Can Fix It

EP#27: If There is a Bug, You Can Fix It

Podcast NotesOur Guest this week is Kwabena Agyeman who runs OpenMV. See Figure 1.The OpenMV project is about creating low-cost, extensible, Python powered, machine vision modules and aims at becoming...

5 Aug 201636min

EP#26: Super Simple Buss Bars of Power

EP#26: Super Simple Buss Bars of Power

Podcast NotesStephen has been working on making the copper buss bars for the SSPS Energon cube. See Figure 1.We calculated that the resistance of the copper buss bars is 0.00458 ohms or 4.58 mohm. Our...

29 Jul 201631min

EP#25: Lousy Datasheet Buyouts

EP#25: Lousy Datasheet Buyouts

Podcast NotesStephen has completed the SSPS Analog board. See Figure 1. Testing will begin early next week.The Macro Amp that Stephen has been working on is almost done. He just needs to solder the th...

22 Jul 201631min

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