Electronic Manufacturing, electronics podcast, MacroFab, macrofab engineering podcast
Podcast
224

MEP EP#224: The Normal Chaos

Podcast Notes

Stephen

  • DC Heating and Thermal Testing
    • A low voltage moderate current linear power supply
    • 12.6V dc @ 0.55A 6.93W
    • LM2940T-12.0 LDO
    • TIP42 bootstrap transistor to share the load
    • 12V @ 2A transformer supplies ~16.2vdc with 200mV ripple
    • ~2W of heat to be handled
    • Shooting for about 250mW in the regulator and the transistor then the rest will get dumped in some resistors
    • PCB heatsinking
  • Diptrace 4.0 is finally here!
    • Snapping and aligning items
    • Circles and arcs actually have a center now…
    • Paste and Mask layers are finally visible
    • Pad angles other than 0 and 90 are now available in the pattern editor
    • One button for removing silkscreen from pads
    • Progressive searching for components instead of the seizure it used to be
    • Export options now can export all the manufacturing files as a single zip
    • Teardrops!

Parker

  • Wagoneer Engine Work
    • Timing cover
      • Water pump
      • Timing chain
      • Distributor gear
      • Distributor camshaft gear
      • Harmonic Balancer
      • All the gaskets
    • Radiator next
    • Dash Cluster
  • Fixing a wine chiller 

Refinished dash Parker restored and installed new gauges into.

Refinished dash Parker restored and installed new gauges into.

 

Gears are not supposed to be shiny and sharp! Cam distributor gear is all chewed up.

Gears are not supposed to be shiny and sharp! Cam distributor gear is all chewed up.

 

Oil seal surface on the harmonic balancer. Supposed to be flat...not dished and grooved.

Oil seal surface on the harmonic balancer. Supposed to be flat…not dished and grooved.


Special thanks to whixr over at Tymkrs for the intro and outro!