Macrofab Engineering Podcast

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig delve into the fascinating and somewhat humorous topic of hot dog conductivity. They explore an in-depth study conducted by Seth Jenkins, Neil LaTourette, and Brendan Liverman on how boiling time affects hot dog conductivity. The hosts also discuss the historical Presto Hot Dogger, community experiments involving hot dogs, and various methods of cooking hot dogs, all while interspersing their own anecdotes and insights. This episode is a blend of scientific curiosity and light-hearted banter, making for an entertaining listen.Key Discussion Points:Introduction to hot dog conductivity and its surprising properties.Shout out to Seth Jenkins, Neil LaTourette, and Brendan Liverman for their 2007 study on hot dog conductivity.Historical gadget: The Presto Hot Dogger and its mechanism.BigCliveDotCom's high-voltage experiment with the Presto Hot Dogger.The Thought Emporium's thermite-based "Instant Hot Dog" device.Methodology of Jenkins, LaTourette,

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig are joined by Matt Brown, an inventive engineer and YouTube content creator renowned for his electrifying DIY projects and creative automotive builds. The trio delves into the concept of "good enough engineering," where Matt shares insights from his career, including his experiences working at Tesla and on various personal projects like the land speed car and the off-road Viper. The discussion also covers the challenges of engineering in unpredictable environments, the balance between planning and improvisation, and the joy of creating new things.Key Discussion Points:Introduction of Matt Brown and his YouTube channel SuperfastMattThe concept of "good enough engineering" and its applicationMatt's background in engineering and his career journeyExamples of "good enough engineering" in Matt's projectsThe importance of intuition and experience in engineering decisionsThe challenges of off-road vehicle engineering compared to aerospaceBalancing m

In this episode, Parker Dillmann and Stephen Kraig chat with Cy Keener, an interdisciplinary artist who merges art and technology to document and visualize the natural world. Cy discusses his journey from architecture to creating custom instruments and sensors for scientific research in the Arctic. He explains how his work helps visualize complex phenomena like sea ice and ocean waves, and shares insights into his collaboration with scientists. Cy also delves into the engineering challenges of building durable sensors for extreme environments and the artistic process of transforming raw data into compelling visual art.Key Discussion Points:Cy Keener's background in architecture and transition to art and technology.The process of designing custom instruments and sensors for Arctic research.Challenges of creating durable electronics for extreme environments.Collaboration with scientists to document and visualize sea ice and icebergs.The artistic process of transforming scientific data into visual art.The signif

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig dive deep into the concept of HMLV (High Mix Low Volume) PCB manufacturing. They discuss the challenges and advantages of HMLV, contrasting it with high volume manufacturing methods used by giants like Apple and Foxconn. They also share personal project updates, including Parker's PWM fan controller and Stephen's work on LED matrix driving. The episode wraps up with insights into MacroFab's latest platform updates and the creation of an ultimate glossary of electronics and PCBA terms.Key Discussion Points:Introduction to HMLV: What does High Mix Low Volume mean?Differences between HMLV and high volume manufacturing.Flexibility and specialized equipment required for HMLV.The importance of a skilled workforce in HMLV environments.Personal project updates: Cyclone Pulse Wrangler and LED Matrix driving.The significance of proper inventory management in HMLV.Insights into MacroFab’s platform updates and their new glossary of electronics terms.Real

In this episode of Circuit Break, hosts Parker Dillmann and Stephen Kraig welcome Rick Altherr, a full stack engineer, to discuss the intricacies of quantum computing. Rick shares insights into the working of quantum processors, particularly the trapped ion approach used by IonQ, and delves into the technical challenges and potential future applications of quantum computing. The conversation covers the practicalities of building quantum computers, the nature of quantum algorithms, and the current limitations that keep quantum computing in the R&D phase.Key Discussion Points:Introduction to Rick Altherr and his background in quantum computing at IonQ.Explanation of the trapped ion approach and its components like RF, lasers, and cryostats.The process of capturing and manipulating qubits in a quantum computer.The role of control theory in regulating trapped ions and performing quantum operations.The coherence time and its impact on quantum computations.Challenges in scaling up quantum computers and achievin

In this episode of Circuit Break, hosts Parker Dillmann and Stephen Kraig dive into the nuances of working with contract manufacturers, specifically focusing on the responsibilities of both the designer and the manufacturer. They discuss critical topics such as reflow profiles, solder specifications, parts washing, and the benefits of allowing your CM to handle PCB panelization. Parker also shares updates on his personal project, the PropFan controller, detailing its features and the challenges faced during its development.Key Discussion Points:What information can you assume your CM will handle?Reflow profile considerationsSolder specifications and BGAsParts washing requirementsPanelizing PCBs: Why it's best left to your CMPersonal Project Updates: PropFan controllerSwitching to a SamD21 MCU for the PropFanUsing the LT8672 for circuit protectionDetails on the Crystal Fontz CFA533-TFH-KC displayImplementing I2C to differential pair conversion with PCA9615Using Ethernet to connect the display and PWM controlle

In this episode of Circuit Break, hosts Parker Dillmann and Stephen Kraig interview Steve Furber, Professor Emeritus of Computer Engineering at the University of Manchester. They discuss his early career at Acorn Computers, the development of the BBC Micro and the ARM processor, and his work on the SpiNNaker project, which models brain functions using a million ARM processors. Furber shares insights into the challenges and successes of these projects and provides advice for aspiring engineers.Key Discussion Points:Steve Furber's early career at Acorn ComputersDevelopment of the BBC MicrocomputerChallenges faced in early computer developmentDesign philosophy behind the ARM processorARM's widespread adoption and current export restrictionsThe SpiNNaker project and its applicationsEvolution of neuromorphic computing and AIPersonal interests and hobbies, including playing bass guitarAdvice for aspiring engineers and future computing technologiesHypothetical career scenarios and advice to his younger selfRelevant

In this special episode celebrating International Women in Engineering Day, hosts Parker Dillmann and Stephen Kraig are joined by Kaylan Smith, Lead Software Developer for Supply Chain and Finance at MacroFab, and Laura Manley, Product Manager for Marketplace & Factory Experience at MacroFab. They discuss their journeys into engineering, challenges faced, and the importance of diversity and inclusion in the field. The episode highlights personal stories, experiences, and insights into how they navigated their careers and the future of women in engineering.News/Announcements:June 23rd is International Women in Engineering Day.Kaylan and Laura share their professional journeys and roles at MacroFab.Discussion on the importance of diversity and inclusion in engineering.Key Discussion Points:Kaylan and Laura’s educational backgrounds and paths to MacroFab.The impact of role models and mentorship in their careers.Challenges faced by women in engineering and how they overcame them.The importance of diversity an

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig, along with special guests Chris Gammell and James Lewis, discuss various aspects of engineering career paths. They delve into how they chose engineering, their first jobs, reasons for changing jobs, and what being an engineer means at different career stages. They also reflect on what they wish they had known earlier in their careers and share some personal anecdotes about non-engineering jobs they've held. The discussion is rich with insights and advice for both new and experienced engineers.Key Discussion Points:How the hosts and guests chose engineering as a career.The impact of their first jobs out of school.Good and bad reasons to change jobs.The role of mentorship and learning from senior engineers.Reflections on imposter syndrome and its effects.The importance of prioritizing tasks and learning to say no.Career transitions and the challenges faced.The influence of non-engineering jobs on their engineering careers.Advice on surrounding

In this episode, Parker and Stephen dive into the intricacies of capacitor selection, discussing various types of capacitors, their properties, and how different factors affect their performance. They also touch on the new custom bare PCB service offered by MacroFab. The episode is rich with technical details, tips for selecting capacitors, and practical advice for engineers.Key Discussion Points:Introduction to the new custom bare PCB service by MacroFabDetailed explanation of capacitor types: Class 1 and Class 2Importance of voltage coefficient of capacitance (VCC)Challenges in selecting capacitors for different applicationsComparison between different capacitor sizes and their effectsTips for avoiding edge cases in capacitor selectionExplanation of how barium titanate affects capacitor performanceMurata's Sim Surfing tool for capacitor dataImpact of capacitor choice on manufacturing and performanceBest practices for selecting capacitors in design projectsRelevant Links:MacroFab Custom PCBsEpisode 141 - It

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig welcome Urban Bruhin, the creator of LibrePCB, an open-source EDA tool. Urban shares his journey from being an electrical engineer to developing LibrePCB, driven by his dissatisfaction with existing EDA tools like Eagle. The discussion covers the unique features of LibrePCB, the challenges faced during its development, and the design philosophy behind its advanced library concept. Urban also discusses the future of LibrePCB and how the community can contribute to its growth.Key Discussion PointsUrban Bruhin's background and inspiration for creating LibrePCB.The challenges faced during the development of LibrePCB.The unique features of LibrePCB, including its advanced library concept and order feature.How LibrePCB handles DRC and multi-user collaboration.The future of LibrePCB and upcoming features.Ways to contribute to and support LibrePCB.Relevant LinksLibrePCB Official WebsiteASML and TSMC NewsCommunity QuestionsWhat are your thoughts on th

In this episode of Circuit Break, Parker Dillmann and Stephen Kraig discuss the recent increase in semiconductor tariffs and its impact on the electronics industry. Parker shares insights from his latest article analyzing how these tariffs affect bill of materials costs. The hosts also dive into a compelling news story about ASML and TSMC's ability to disable chip machines remotely in the event of geopolitical conflicts, particularly if China invades Taiwan. They explore the ethical implications and security concerns surrounding this capability. Personal project updates include Parker's work on Python scripting to automate data extraction from invoices.News/AnnouncementsRecent increase in semiconductor tariffs and its potential impact on bill of materials costs.ASML and TSMC's ability to remotely disable chip machines in case of geopolitical conflicts.Key Discussion PointsAnalysis of the new semiconductor tariffs and their impact on BOM costs.Breakdown of HTS codes and country of origin data for electronic co

SummaryIn this episode, Parker Dillmann and Stephen Kraig delve into the fascinating world of time modulation, discussing recent advancements in capacitor technology. They explore a new dielectric structure made from barium titanate and its potential impact on energy density and efficiency. The hosts also discuss the implications of new tariffs on semiconductors and other goods from China. Additionally, they touch on new developments from the Raspberry Pi Foundation and share updates on Parker's personal projects, including his work on a 1965 Checker Marathon engine.News/AnnouncementsNew tariffs announced by the U.S. government: 50% on semiconductors, 25% on steel and aluminum, 100% on EVs, and 50% on solar panels from China.The Raspberry Pi Foundation announced an M.2 hat for the Raspberry Pi.Key Discussion PointsTime modulation in capacitors and the new dielectric structure using barium titanate.The concept of heterojunctions and homojunctions in semiconductors.Efficiency improvements in capacitors and thei

Summary:In this episode, Parker Dillmann and Stephen Kraig delve into the hefty topic of U.S. funding for 'digital twin' chips research under the CHIPS Act, comparing its budget to other big expenditures like Boeing's Starliner and military budgets. They also discuss EDA tool pricing, breaking down costs from freeware to industry heavyweights, and the implications for small vs. large businesses. Additionally, Parker shares his personal project update on his first KiCad PCB.Key Discussion Points:Introduction to the topic of U.S. funding for 'digital twin' chips research and its comparison to other large expenditures.Overview of the CHIPS Act, its budget, and its place in the broader U.S. budget context.Discussion on the price and subscription models of various EDA tools, from entry-level to high-end industry standards.Analysis of the impact of EDA tool pricing on small businesses versus large corporations.Parker's personal project update: success with his first KiCad PCB.The hosts reflect on the social dynamic

This week we delve into the major (Isn't there always one?) lawsuit against Apple for monopolizing the smartphone market. We explore the implications of Apple’s business practices on innovation, consumer choice, and market competition. The discussion also covers the ethical concerns around Apple's ecosystem exclusivity and how it affects users' perceptions of non-Apple products.Discussion Highlights: Overview of the Justice Department's lawsuit against Apple for monopolizing smartphone markets, focusing on exclusionary practices that hinder competition.Examination of how Apple's ecosystem locks in users, making it difficult to switch to competitor products like Android.Discussion on the ethical considerations of business practices that degrade competitor's product functionality.Reflections on personal and societal impacts of technology choices, including the social implications of being labeled by the type of device one uses.Relevant Links:Justice Department Sues Apple: https://www.justice.gov/opa/pr/justice-

This week we dive into the fascinating world of vintage tech repair, focusing on efforts to preserve General Motors' futuristic '80s digital displays. Hosts Parker Dillmann and Stephen Kraig discuss the resilience and repair techniques of the Visual Information Center (VIC) screens, introduced in the late '80s. They also highlight MacroFab's new inventory management features that streamline the process for electronic components, ensuring efficient project management and system updates.Discussion Highlights: Launch of MacroFab's enhanced inventory management system, improving component tracking and project management.The survival and repair techniques of GM's '80s digital displays, highlighting the challenges and techniques involved in maintaining legacy technology.Discussion on designing long-lasting electronic components and the importance of planning for product lifecycle and reliability.Exploring the impact of technology on product longevity and the potential of modern tools to extend the life of electroni

In this episode of Circuit Break, we wrap up the Food Device Design Derby. We celebrate the innovation and creativity of contest entries like the JavAqua, Pizza Pouch, and the winner, BarBuddy, a personal robotic bartender. Notable discussions include a look at podcast statistics, with an impressive 86% of listeners tuning in for entire episodes. We also introduced a new email notification system for podcast releases, moving from Tuesday to Friday releases, and encouraged listeners to engage with reviews. There is also a brief discussion about if PCB assembly drawings are still relevant.Discussion Highlights:Introduction of "Breakers" as a nickname for the podcast listeners.Discussion of the podcast's high listener engagement stats.Introduction of an email notification system for new podcast episodes.Results and highlights from the Food Device Design DerbyThird place: Pizza PouchSecond place: JavAquaFirst place: BarBuddyCircuit Break Favorite: h0t_d0gThe importance and challenges of creating accurate assembly

Today, we're tackling a topic that's a gold mine for any designer: crucial features you might not have considered for your prototype. From debug headers to "Swapperoo" resistors and heartbeat indicator LEDs, we're covering it all. Tune in as we share insights, anecdotes, and maybe a few confessions from our own prototyping adventures. Plus, we dive into the importance of making your prototype testing-friendly and discuss a poll that could solve a common UART connection dilemma. This is episode 426 – your prototype's new best friend!Discussion Highlights: Debug Headers: Taking inspiration from James Lewis’s Apple Mega 2 project, we discuss the importance of embedding debug headers directly onto the PCB. We also highlight the Tag Connect's footprint as a space-saving, connector-free debugging interface. Test Pads for Production Testing: Crucial for measuring signals ensuring that potential circuit issues are not overlooked. This measure is crucial for validating the prototype’s performance. Jumper Headers in Se

This week, hosts Parker Dillmann and Stephen Craig are joined by Kyle McLeod, the OE Project Manager, and Nicholas Lundgard, the OE Team Lead at MacroFab. They delve into recent software releases enhancing the ordering experience on the MacroFab platform, including ITAR compliance, improvements in design file uploads, and the introduction of customer-furnished material options. They discuss the importance of seamless user interactions for uploading PCBs, placing orders, and how MacroFab's platform facilitates these processes. The episode provides insights into MacroFab's efforts to make PCB manufacturing more accessible and efficient for their customers.Discussion Highlights:Introduction of ITAR compliance and its significance for MacroFab's platform and users.Enhancements in PCB design file uploads, including support for additional file types and improved user interface.The role and benefits of customer-furnished material options in the ordering process.Discussions on intelligent overage logic for parts orde

This week, delve into the fascinating world of Batman's utility belt. We begin by tracing the evolution of this iconic accessory from its humble origins to its current complex design. The belt features a diverse array of gadgets, tools, and essentials utilized by the Dark Knight. Our discussion covers a wide range of items, from lockpicking tools to unique additions like crayons and lollipops. We examine the practicality and innovative engineering behind Batman's assortment of tools and contemplate what items electrical engineers might include in their own specialized utility belts. Join us for an insightful exploration of superhero gadgetry and its parallels in real-world engineering.Batman and Engineering: Could Batman be seen as an engineer? Relies on technology and intellect rather than superhuman abilities. Utility Belt Evolution: The history and evolution of Batman's iconic utility belt, from its initial simplistic design and its evolution into a more complex, gadget-laden accessory.Batarang: The Batara