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#16: Fixtures of Echoing Tubes

EP#16: Fixtures of Echoing Tubes

Hosts: Parker Dillmann Stephen KraigGuests: N/A Figure 1: Non working Space Echo RE-201 Figure 2: A NuTube 6P1 straight from KORG. Figure 3: The constant current source Stephen is using for his NuTub...

20 Touko 201643min

EP#15: Ridiculously Blinking LED

EP#15: Ridiculously Blinking LED

Hosts: Parker Dillmann Stephen KraigGuests: N/A Figure 1: SSPS front panel test layout. Miniature version of the real front panel to test physical placement and new parts. Figure 2: Two TPS65982-EVM b...

13 Touko 201633min

EP#14: Discrepant Diodes

EP#14: Discrepant Diodes

Hosts: Parker Dillmann Stephen KraigGuests: N/AFigure 1: SSPS front panel layout. Traces to come soon. Figure 2: Inconsistencies in the LTST-C171CKT datasheets.Podcast NotesStephen is still working on...

6 Touko 201635min

EP#13: Picture Books for Engineers

EP#13: Picture Books for Engineers

Podcast NotesOur guest this week is Dustin Holliday, a Production Line Engineer at MacroFab, INC. Dustin programs the My200 paste jetter, the My500 pick and place, and the Rhythm Selective Solder. See...

29 Huhti 201640min

EP#12: Silicon Condensors

EP#12: Silicon Condensors

Podcast NotesStephen built a power supply for an old school tube microphone for Josh. Josh does the recordings for the Podcast. See Figure 1 for the schematic.Microphone is a Sony C37 tube condenser m...

22 Huhti 201630min

EP#11: False Fuses and Kitschy Kickstarters

EP#11: False Fuses and Kitschy Kickstarters

Podcast NotesParker has been hard at work on the PinHeck Test Fixture. It uses over 160 pogo pins to test every single function of the PinHeck Pinball System. There will be an article about designing ...

15 Huhti 201637min

EP#10: IoT’s Cloudy Future

EP#10: IoT’s Cloudy Future

Podcast NotesFirst Guest for the MacroFab Engineering Podcast! Trey German is working on a IoT platform using BLE and a small coin cell.Trey's device worked on the first revision! How often does that ...

8 Huhti 201641min

EP#9: Robots with Feelings

EP#9: Robots with Feelings

**Podcast Notes*** Parker and Stephen continue work on the [Super Simple Power Supply](https://github.com/MacroFab/SSPS). There is a full on simulation of the analog section on MultiSim.* Stephen foun...

1 Huhti 201636min

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