Circuit Break - A MacroFab Podcast

MEP EP#224: The Normal ChaosStephen

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

Show Notes

MEP EP#224: The Normal Chaos

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

Creators & Guests

Host
Parker Dillmann
A Founder @MacroFab.Builds Electronics, Cars, & Jeeps.
Host
Stephen Kraig
EE
Producer
Chris Martin

What is Circuit Break - A MacroFab Podcast?

Dive into the electrifying world of electrical engineering with Circuit Break, a MacroFab podcast hosted by Parker Dillmann and Stephen Kraig. This dynamic duo, armed with practical experience and a palpable passion for tech, explores the latest innovations, industry news, and practical challenges in the field. From DIY project hurdles to deep dives with industry experts, Parker and Stephen's real-world insights provide an engaging learning experience that bridges theory and practice for engineers at any stage of their career.

Whether you're a student eager to grasp what the job market seeks, or an engineer keen to stay ahead in the fast-paced tech world, Circuit Break is your go-to. The hosts, alongside a vibrant community of engineers, makers, and leaders, dissect product evolutions, demystify the journey of tech from lab to market, and reverse engineer the processes behind groundbreaking advancements. Their candid discussions not only enlighten but also inspire listeners to explore the limitless possibilities within electrical engineering.

Presented by MacroFab, a leader in electronics manufacturing services, Circuit Break connects listeners directly to the forefront of PCB design, assembly, and innovation. MacroFab's platform exemplifies the seamless integration of design and manufacturing, catering to a broad audience from hobbyists to professionals.

About the hosts: Parker, an expert in Embedded System Design and DSP, and Stephen, an aficionado of audio electronics and brewing tech, bring a wealth of knowledge and a unique perspective to the show. Their backgrounds in engineering and hands-on projects make each episode a blend of expertise, enthusiasm, and practical advice.

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