EP#394: GPUs D.O.A, Reverse Polarity Problems, 3D Printer Pickles

EP#394: GPUs D.O.A, Reverse Polarity Problems, 3D Printer Pickles

Parker and Stephen discuss some MacroFab updates including news about their pod community and Slack, what’s wrong and right about high-end GPUs and the marvels of KrisFix and his YouTube repair channel, what’s up with consumer electronics and their lack of reverse polarity protection, and Parker muses about when it’s time to call it day for a 3D Printer.


More on these topics:


Community:

  • New community hub! Shifting away from the Slack channel?
  • Are you in or near Houston, Texas any time soon? Please come out to Beers for Engineers! More info below!

Dead on Arrival for high end GPUs - Nvidia

  • RTX 4090 - The biggest problem with modern cards that the manufacturer refuses to repair
  • KrisFix’s repair skills
  • Popping the pad
  • Too much Board Flex
  • “RTX Technology Package” (air quotes)
  • Decoding NVIDIA
  • 5000 Series Rumours?

Why do so many consumer electronics not have reverse polarity protection?

  • Looking through Windows
  • Can’t turn it up to 11
  • Motherboards of Invention
  • Guitar Pedal Problems
  • The hot leg
  • The P Channel Set-up
  • “Slap a diode on it”
  • Italian Decisions
  • Why Raspberry Pie “Won”

Personal Project Updates:

  • Should Parker replace his 3D printer?
  • When to pull the plug on such a hard-working machine

Good links:

Thank you for listening to the MacroFab Engineering Podcast! We’d love to hear what you think of the show so please tweet at us @MacroFab and join our slack channel at Macrofab.com/slack or email us at podcast@macrofab.com.

Jaksot(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 Syys 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 Syys 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 Elo 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 Elo 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 Elo 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 Elo 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 Heinä 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 Heinä 201631min

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