<a href="https://macrofab.com/blog/mep-ep237-ice-cream-solder-paste-equipotential">MEP EP#237: Ice Cream Solder Paste Equipotential</a> Parker
<ul>
	<li>Cat Feeder Unreminder

<ul>
	<li>Started designing the parts and symbols in Eagle. </li>
	<li>Will post more on twitter as I build the components and put together the symbols</li>
</ul>
</li>
	<li>Garage Door opener hacking

<ul>
	<li>Converting my normal style garage door opener to a “jackshaft” style opener</li>
	<li>Why? </li>
	<li>LiftMaster, Chamberlain, Craftsmen are all the same </li>
	<li>Mine is a Liftmaster Formula 1

<ul>
	<li>Belt drive need to convert to chain drive to attach to the jackshaft</li>
	<li>All of these use similar drive mechs</li>
</ul>
</li>
	<li>Other things that are needed

<ul>
	<li>Garage door auto lock

<ul>
	<li>SureLock Garage Door DeadBolt</li>
</ul>
</li>
	<li>Cable tension switch

<ul>
	<li>LiftMaster 41A6104</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
Stephen
<ul>
	<li>High voltage low current measurement

<ul>
	<li>Resistive dividers?

<ul>
	<li>Caddock 1776-C681</li>
	<li>10M ohm</li>
	<li>0.1% tolerance with 0.05% matching</li>
	<li>Low PPM</li>
	<li>This method is ok but requires a rather large current sense resistor which is not great.</li>
</ul>
</li>
	<li>Floating supplies

<ul>
	<li>This is how multimeters work. The reference is floating.</li>
</ul>
</li>
	<li>Isolation solution

<ul>
	<li>May go with an isolated solution - basically a power supply that isolates the secondary.</li>
	<li>Isolated digital communication down to LV side.</li>
</ul>
</li>
</ul>
</li>
	<li>Tests for pcb shielding

<ul>
	<li>Did a shield plane test on a new pcb assembly.</li>
	<li>Top and bottom pours that respect clearance rules.</li>
	<li>5mm pitch via stitching.</li>
	<li>All terminate to one pin on a 2 pin header.

<ul>
	<li>Second pin connects to a plated bolt hole that goes to chassis.</li>
</ul>
</li>
</ul>
</li>
</ul>

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.

<a href="https://macrofab.com/blog/mep-ep237-ice-cream-solder-paste-equipotential" rel="noopener noreferrer">MEP EP#237: Ice Cream Solder Paste Equipotential</a> Parker
<ul>
	<li>Cat Feeder Unreminder

<ul>
	<li>Started designing the parts and symbols in Eagle. </li>
	<li>Will post more on twitter as I build the components and put together the symbols</li>
</ul>
</li>
	<li>Garage Door opener hacking

<ul>
	<li>Converting my normal style garage door opener to a “jackshaft” style opener</li>
	<li>Why? </li>
	<li>LiftMaster, Chamberlain, Craftsmen are all the same </li>
	<li>Mine is a Liftmaster Formula 1

<ul>
	<li>Belt drive need to convert to chain drive to attach to the jackshaft</li>
	<li>All of these use similar drive mechs</li>
</ul>
</li>
	<li>Other things that are needed

<ul>
	<li>Garage door auto lock

<ul>
	<li>SureLock Garage Door DeadBolt</li>
</ul>
</li>
	<li>Cable tension switch

<ul>
	<li>LiftMaster 41A6104</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
Stephen
<ul>
	<li>High voltage low current measurement

<ul>
	<li>Resistive dividers?

<ul>
	<li>Caddock 1776-C681</li>
	<li>10M ohm</li>
	<li>0.1% tolerance with 0.05% matching</li>
	<li>Low PPM</li>
	<li>This method is ok but requires a rather large current sense resistor which is not great.</li>
</ul>
</li>
	<li>Floating supplies

<ul>
	<li>This is how multimeters work. The reference is floating.</li>
</ul>
</li>
	<li>Isolation solution

<ul>
	<li>May go with an isolated solution - basically a power supply that isolates the secondary.</li>
	<li>Isolated digital communication down to LV side.</li>
</ul>
</li>
</ul>
</li>
	<li>Tests for pcb shielding

<ul>
	<li>Did a shield plane test on a new pcb assembly.</li>
	<li>Top and bottom pours that respect clearance rules.</li>
	<li>5mm pitch via stitching.</li>
	<li>All terminate to one pin on a 2 pin header.

<ul>
	<li>Second pin connects to a plated bolt hole that goes to chassis.</li>
</ul>
</li>
</ul>
</li>
</ul>

MEP EP#237: Ice Cream Solder Paste Equipotential

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.

Join the conversation and community at our online engineering forum, where we delve deeper into each episode's content, gather your feedback, and explore the topics you're curious about. Subscribe to Circuit Break on your favorite podcast platform and become part of our journey through the fascinating world of electrical engineering.

Science

Technology

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. Join the conversation and community at our online engineering forum, where we delve deeper into each episode's content, gather your feedback, and explore the topics you're curious about. Subscribe to Circuit Break on your favorite podcast platform and become part of our journey through the fascinating world of electrical engineering.

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