MEP EP#237: Ice Cream Solder Paste Equipotential

MEP EP#237: Ice Cream Solder Paste Equipotential

MEP EP#237: Ice Cream Solder Paste Equipotential

Parker

  • Cat Feeder Unreminder
    • Started designing the parts and symbols in Eagle.
    • Will post more on twitter as I build the components and put together the symbols
  • Garage Door opener hacking
    • Converting my normal style garage door opener to a “jackshaft” style opener
    • Why?
    • LiftMaster, Chamberlain, Craftsmen are all the same
    • Mine is a Liftmaster Formula 1
      • Belt drive need to convert to chain drive to attach to the jackshaft
      • All of these use similar drive mechs
    • Other things that are needed
      • Garage door auto lock
        • SureLock Garage Door DeadBolt
      • Cable tension switch
        • LiftMaster 41A6104

Stephen

  • High voltage low current measurement
    • Resistive dividers?
      • Caddock 1776-C681
      • 10M ohm
      • 0.1% tolerance with 0.05% matching
      • Low PPM
      • This method is ok but requires a rather large current sense resistor which is not great.
    • Floating supplies
      • This is how multimeters work. The reference is floating.
    • Isolation solution
      • May go with an isolated solution - basically a power supply that isolates the secondary.
      • Isolated digital communication down to LV side.
  • Tests for pcb shielding
    • Did a shield plane test on a new pcb assembly.
    • Top and bottom pours that respect clearance rules.
    • 5mm pitch via stitching.
    • All terminate to one pin on a 2 pin header.
      • Second pin connects to a plated bolt hole that goes to chassis.

Jaksot(448)

EP#419: Kent Johnson: Religious Diversity in Electrical Engineering

EP#419: Kent Johnson: Religious Diversity in Electrical Engineering

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EP#418: Entangled Steam

EP#418: Entangled Steam

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EP#417: Cloud of Disks

EP#417: Cloud of Disks

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EP#416: No David here, Chris Gammell with Golioth.io

EP#416: No David here, Chris Gammell with Golioth.io

Discuss this episode.We welcome Chris Gammell, Developer Relations Lead at Golioth, to explore the exciting world of IoT (Internet of Things) and hardware. Chris brings his extensive engineering backg...

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EP#415: CI/CD - We Salute You with Brenden Duncombe

EP#415: CI/CD - We Salute You with Brenden Duncombe

This week Parker and Stephen welcome Brenden Duncombe to the show to discuss the pros and cons of continuous integration and continuous delivery/deployment (aka CI/CD) for hardware. Continuous integra...

30 Tammi 202445min

Welcome to Circuit Break - A MacroFab Podcast

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Prepare to plug into the world of electrical engineering on Circuit Break - A MacroFab Podcast. Join two adventurous engineers, Parker Dillmann and Stephen Kraig, as they dissect the latest tech innov...

24 Tammi 20241min

EP#414: Net Running the Nut Runners with Joe Grand

EP#414: Net Running the Nut Runners with Joe Grand

This week Parker and Stephen welcome Joe Grand to the show to discuss insecure IoT devices. Inspired by a recent incident where Bosch wrenches were infected by ransomware called DRILLCRYPT, the guys a...

23 Tammi 20241h 6min

EP#413: The Gray Zone with Kent Johnson

EP#413: The Gray Zone with Kent Johnson

This week Parker and Stephen welcome Kent Johnson to the show to discuss ethics in engineering. It’s a topic that has been alluded to over the course of Circuit Break, but this is the first time Parke...

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