MacroFab Engineering Podcast

MacroFab's Engineering Podcast! Where Electrical Engineers, Parker Dillmann and Stephen Kraig talk about electrical engineering topics, DIY projects, and industry news. Sometimes cool people stop by the podcast to drop some knowledge.

https://macrofab.com/blog/podcast/

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episode 235: Solar Freaking Cat Feeders


MEP EP#235: Solar Freaking Cat Feeders
Parker

  • Cat Feeder Unreminder
    • Pulsing current to light LEDs
      • http://donklipstein.com/ledlocup.html
      • http://www.discovercircuits.com/H-Corner/lowpwrflasher.htm
    • Timer IC
      • LTC2956
    • Power Management
      • Solar with super capacitors
      • Panasonic BSG series solar panels
        • Will have to do research on specifying solar panels
      • AEM10941
        • https://e-peas.com/wp-content/uploads/2020/04/DS_AEM10941.pdf
        • Built in LDO regulators
Stephen
  • Ball screws
    • Bought a small section of ball screw with the associated nut, nut housing, and end block
    • SFU1605 300mm - 16mm diameter and 5mm pitch
    • Trying to work out linear forces and the RPM range if it were to be driven from a stepper motor or servo
    • Mechanical engineering is tough
  • CNC work
    • Cut the first actual project on the CNC
    • Movable cradle for holding chassis - makes working on them super easy
    • Had to spend some serious time working on getting the machine to cut 90 degree
      • Iterative process
    • Flex in the machine - 0.02” accuracy
    • Going to cut some speaker cabs next
    • Added a simple fan radiator
    • 8020 catalog arrives sometime soon….
  • ARP 2600 repair
    • A client found a unit that was put in a closet in 1984
    • It was only pulled out last weekend and is now in my hands to do some repairs


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 2020-07-29  59m