MacroFab Engineering Podcast
370 episodes - English - Latest episode: over 1 year ago - ★★★★★ - 34 ratingsMacroFab'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.
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Episodes
MEP EP#266: The Expert
March 03, 2021 17:18 - 54 minutes - 75 MBMEP EP#266: The Expert Design for Manufacturing – Beyond the Digital Domain Webinar that Chris Church (Co-Founder of MacroFab) will be co-hosting with Edwin Robledo of AutoDesk. Building a Program and Testing procedure for your first production run Take lots of pictures Keep it up to date and version controlled Hand off the procedure to a colleague and have them run through it Work with your CM MacroFab works closely to help flesh out procedures and fixture designs What is you acce...
MEP EP#265: NuFuel and Gas Classic
February 24, 2021 23:48 - 1 hour - 99.3 MBMEP EP#265: NuFuel and Gas Classic Resealing 12oz cans? FAIL! Worked till can shaken a bunch Improvements Working on finding a softer sealing surface Currently using a Shore 55A neoprene rubber sheet Increase seal pressure on can Carmakers wake up to new pecking order as chip crunch intensifies Follow up from last week's discussion on Auto industry shutting down production due to lack of electrical components. Both automakers and chip manufactures are pointing fingers Chip mak...
MEP EP#264: Electronic Wear Items
February 18, 2021 16:54 - 51 minutes - 47.3 MBMEP EP#264: Electronic Wear Items Tesla Recalls Cars With EMMC Failures, Calls Part A ‘Wear Item’ Wear items on cars are designed to be “easily” serviced Is this just a cop out to avoid warranty issues and recall problems? If the EMMC is a wear item it should have a recommended service interval but it does not Derek Fronek from the slack channel: “So it finally happened.... after all these years of using SD cards on pi's ive never had an SD card fail on me, until today.......” Reseal...
MEP EP#263: Hoarders Edition
February 10, 2021 21:22 - 1 hour - 90.6 MBMEP EP#263: Hoarders Edition Chris Carter Owner of Mercury inc, a design consulting firm with expertise in electrical mechanical software and firmware development Was last seen on MEP episode 244 Comic Con for Engineers DFM For Safety As in Supply Chain Safety Difference in projects Project specific information Based on price and quantity breaks for components Multiple Vendors Vendor accessibility (location location location) Alternate sources Communications between contract manuf...
MEP EP#262: Flex PCB Primers
February 03, 2021 23:52 - 43 minutes - 59.8 MBMEP EP#262: Flex PCB Primers Parker Robert Feranec Published a video about what to consider when selecting chips for your new board design. Don’t want to steal Robert's content so go check him out. Hardware design and PCB Layout online course Comprehensive Power Supply System Designs for Harsh Automotive Environments Consume Minimal Space, Preserve Battery Charge, Feature Low EMI Analog engineer Bin Wu and previous Linear Tech engineer Zhongming Ye writing an application note with li...
MEP EP#261: Critical Path Components
January 28, 2021 00:23 - 55 minutes - 75.7 MBMEP EP#261: Critical Path Components Parker What can you do to help alleviate component shortages and lead times in your design Last week we talked about automotive component shortages Passive components Most passives it is easy to find substitutes Check your specifications Components that have extraordinary specs for there package size Active components Diversify what you can Discretes Diodes Mosfets Integrated Components Different packages or packaging Connectors Different...
MEP EP#260: A Couple Months Ago...
January 20, 2021 23:03 - 1 hour - 56.4 MBMEP EP#260: A Couple Months Ago... Parker Homebrew going big Uncle runs a brewpub down in Alvin, Tx Going to help him repair and rebuild the brewery for post COVID Building more electrical boxes Chip shortages hit even as auto chip sales climb Ford and Fiat Chrysler are temporarily closing factories due to limited supplies of electronic components that are used in displays and transmissions Apple wants to make a self-driving electric car by 2024 VLSI Research report 4th quarter aut...
MEP EP#259: Troncrete
January 13, 2021 17:33 - 48 minutes - 44 MBMEP EP#259: Troncrete Parker Your C@$% Is Mine Now We actually brought up the security report on this device back in Oct 2020 on episode MEP 245: K-factoring A Gumbo Qiui, the China-based manufacturer of the device, which is aptly called Cellmate, did not respond to a request for comment Stephen Solar Freaking Roadways! First talked about on MEP EP1… “France building a huge solar roadway. This again?” Solar Roadway Timeline 2006 solar roadways is founded 2009 - 100k small busines...
MEP EP#258: Chainsaws, Wasps, Doom, and Gloom
January 06, 2021 22:20 - 57 minutes - 52.3 MBMEP EP#258: Chainsaws, Wasps, Doom, and Gloom Parker PCBA Lead Times in Q1 2021 Supply chain disruption in 2020 started with the Lunar New Year and quickly extended into the COVID-19 2021 LNY falls between February 9 to February 16 COVID-19 Vaccines Logistic capacity being reserved for the vaccine distribution 10 Day service at MF will be the biggest hit. Guaranteed 10 day service will be disabled on January 13th and will resume on February 16th. On Dec. 31, 2020, the United States T...
MEP EP#257: Viciously Different Creams
December 30, 2020 18:47 - 50 minutes - 69.7 MBMEP EP#257: Viciously Different Creams Parker The ole ordered a 0603 and it was metric instead resulting in an 0201 imperial chip component. 0.6mm x 0.3mm = 0.024” x 0.012” 0201 imperial chip size only size that does not match the actual size Imperial 0201 is 24mil x 12mil... not 20mil x 10mil like the name implies Imperial 0603 is 60mil x 30mil 0603 metric is the only standard metric size that has the same size code as an imperial one! Does anyone actually use the metric sizing for...
MEP EP#256: Color Clashing Chip Consolidation
December 23, 2020 22:14 - 1 hour - 85.1 MBMEP EP#256: Color Clashing Chip Consolidation Parker Whats up with the Cat feeder unreminder? Still waiting on components to test with PinoTaur taking priority Email PDFs of wiring harnesses Jeep Fan Project Revisit Jeep Fan was a project idea to take sensor input from all over the Jeep and display on a VFD Universal Multi Gauge exist but kinda suck Rear view mirror has a screen in it Composite video? Stephen Negative in negative out SMPS Help from PhilG and Tom Anderson from th...
MEP EP#255: Fifth Annual MacroFab Star Wars Christmas Special - Neo Jedi
December 17, 2020 00:32 - 1 hour - 137 MBMEP EP#255: Fifth Annual MacroFab Star Wars Christmas Special - Neo Jedi Parker SPACE TRASH in Star Wars Recently ESA commissioned the world’s first space debris removal ClearSpace-1 which will launch in 2025 Would space trash be a concern for the galaxy far far away? I don’t think the Empire cares all too much about space garbage since they just jettison everything before jumping to hyperspace as seen in Empires Strikes Back. If it was merely a case of if space was just big enough th...
MEP EP#254: Ridiculous Relay Ratings
December 09, 2020 18:06 - 51 minutes - 71.3 MBMEP EP#254: Ridiculous Relay Ratings Parker PinoTaur updates REV 4 Automotive relays are not certified to run at the voltages we need G2RL-1A-E-CV DC12 Max voltage rating is 300VDC “Rated” current is 24VDC at 16A G2RG-2A-X DC12 Rated at 500VDC at 10A Looking at other relays used for this purpose in production machines… Am I missing something in choosing the correct relay? RGB Light string split into two Power current is the reason Foxconn Electronics hit by Ransomware $34 millio...
MEP EP#253: Benjamin Jordan of Autodesk
December 02, 2020 23:47 - 1 hour - 152 MBMEP EP#253: Benjamin Jordan of Autodesk Benjamin Jordan A Computer Systems and PCB Engineer with over 25 years of experience in embedded systems, FPGA, and PCB design Is an avid tinkerer and is passionate about the creation of electronic devices of all kinds Holds a Bachelor of Engineering with First Class Honors from the University of Southern Queensland Currently Senior Product Manager for ECAD in Autodesk Fusion 360, and 16 years prior with Altium Recently licensed HAM radio operato...
MEP EP#252: Kicking Troglodytes Off The Stage
November 26, 2020 05:01 - 48 minutes - 67 MBMEP EP#252: Kicking Troglodytes Off The Stage Parker PCB serial numbering or other unique marking I have batches of boards and need to put some unique numeric identifier and a MAC address on each board. Besides stickers, laser etching, scratching or DIY stencil and paint, what are folks doing? PinoTaur REV 3 boards arrived REV 4 changes already ;) Ben Jordan of Autodesk will be a guest on the podcast Product manager and is responsible for the EAGLE product Get your Eagle questions i...
MEP EP#251: Loopholes or Equivalent
November 18, 2020 20:51 - 47 minutes - 65 MBMEP EP#251: Loopholes or Equivalent Parker Wiring Harness update Wire Jacket Temperature rating Wire strandedness or number of strands Labeling Requirements? Treatment to pigtail end RoHs? The Untold Story Of The Bug That Almost Sank The Dreamcast's North American Launch Audio IC hardware layout problem Floating input pin causing the IC to flip into MIDI mode and crash the software BL6: The Coolest* Console Ever Video game console that is supposed to look like a 6 pack of beer ...
MEP EP#250: Artisan Sudo Toasters
November 11, 2020 19:10 - 44 minutes - 61.8 MBMEP EP#250: Artisan Sudo Toasters Parker EXTRALIFE charity update How Biden may handle China and the electronics trade CHIPS Act Creating Helpful Incentives for Producing Semiconductors Incentives for the construction of semiconductor manufacturing facilities and equipment Calls for $300 billion in new funding over four years for R&D and breakthrough technologies like AI and quantum computing. “aggressive trade enforcement actions against China” Drawing wiring harness diagrams for...
MEP EP#249: How Soft Are Your Diodes?
November 04, 2020 23:54 - 48 minutes - 66.2 MBMEP EP#249: How Soft Are Your Diodes? Parker Signed up for the EXTRA LIFE charity this year to raise money for the Texas Children's Hospital This Saturday (Nov 7th) Parker will be broadcasting a 24 hour video game stream Will be playing the Half-Life 2 video game all the way through This includes the two episode expansions to the base campaign Difficulty level will be set to 'Hard' and I will be attempting to unlock all the achievements at the same time. Donations are tax-deductible a...
MEP EP#248: Keeping The Spirit Costs Extra
October 28, 2020 19:47 - 46 minutes - 64.5 MBMEP EP#248: Keeping The Spirit Costs Extra Parker AMD to buy Xilinx for $35 billion in stock Wasn’t that long ago that Intel bought Altera Why such a merger? Sharing topography, technology, and manufacturing techniques Tariffs and the Election Engineers and Manufacturers have been decoupling from China for the last 4 years The big question is what happens next. If Biden wins, are the Trump tariffs gone? Or will we keep them? What happens if Trump wins? Tesla self driving Imagine l...
MEP EP#247: To Bake an Apple Pie
October 21, 2020 21:02 - 53 minutes - 73.9 MBMEP EP#247: To Bake an Apple Pie Parker PCB Stackup Why is it important to manufacturing? Who should define it? CM? PCB Fabricator? Designer? PCB Bodges Your worst bodge Most proud bodge? DIY Glycol chilling? Chiller Daddy Pump Diverter Stephen Brexit and the UKCA Mark New regulatory mark to make things easier… Goes into affect 1 January 2021 The UKCA marking can be used from 1 January 2021. However, to allow businesses time to adjust to the new requirements, you will sti...
MEP EP#246: Doing Something Magical
October 14, 2020 22:46 - 41 minutes - 56.6 MBMEP EP#246: Doing Something Magical Parker Physicists build circuit that generates clean, limitless power from graphene University of Arkansas physicists Energy harvesting the thermal motion of graphene Without getting all quantum about it, it seems to work by configuring the graphene as one electrode (or both) of a capacitor. As the graphene flaps in the breeze (actually Brownian motion, I assume), the changing geometry will change the capacitance. The team's next objective is to det...
MEP EP#245: K-Factoring a Gumbo
October 07, 2020 23:16 - 44 minutes - 61.8 MBMEP EP#245: K-Factoring a Gumbo Parker Security flaw left ‘smart’ chastity sex toy users at risk of permanent lock-in List to podcast for additional information... Stephen Fusion 360 has changed their personal license subscription model All of these went into effect on Oct 1 Project storage is limited to 10 active and editable documents Exports are now limited to a small number of file types. Thankfully this still includes STL files but alas, DXF, DWG, PDF exports are all gone Perha...
MEP EP#244: Comic-Con for Engineers - Chris Carter
September 30, 2020 19:21 - 53 minutes - 72.8 MBMEP EP#244: Comic-Con for Engineers - Chris Carter Chris Carter The owner of Mercury Inc. Mercury Inc. is a design consulting firm with expertise in electrical mechanical software and firmware development DFM for PCB Assemblies Industrial Design What is this? Special Assembly Unique processes Sequences and events Design for Serviceability Documentation Change logs
MEP EP#243: Schematics and Connectors, Name a More Iconic Duo...
September 23, 2020 20:57 - 53 minutes - 73.8 MBMEP EP#243: Schematics and Connectors, Name a More Iconic Duo... Parker Battery Charger debacle update Two batteries recovered, One failed Amazon Sidewalk draws electronics from among TI, Silicon Labs and Semtech Amazon Sidewalk, a new shared wireless network for IoT consumer device DXF to Board outlines? Eagles DXF importer doesn’t work all too well Suggestions? AutoDesk Fusion seems to import just fine Stephen Connectors on schematics Rfdave on slack channel asked a question ab...
MEP EP#242: The Heartbeat of Cats and LEDs
September 17, 2020 00:27 - 47 minutes - 65.4 MBMEP EP#242: The Heartbeat of Cats and LEDs Parker Battery charger and maintainer died Took all my batteries with it Company is replacing the unit Nothing looks particularly wrong with the PCB Assembly besides it being gross SF1565SG Current Mode PWM Controller FQPF12N60C Fet used in the PWM Controller HT46R004 HolTek MCU Cost Effective? Cat Feeder Unreminder Ordered a breakout board for the AEM10941 Super Caps SCCS30B106PRB 10F @ 2.7VDC Solar Panel AM-1816CA 84µA at peak ...
MEP EP#241: Failing to Electrocute the Chicken
September 09, 2020 21:58 - 49 minutes - 68.5 MBMEP EP#241: Failing to Electrocute the Chicken Parker Bit of feedback on a live stream People suggesting YouTube live Will set this up for episode 242 The little things no one sees that make projects take forever 3D printer update completed New fans TI calls for lower-cost sensors to boost robot adoption “We don’t see as many robots as we’d like” Elon Musk’s Neuralink implant Pig example Stephen High voltage low current measurement - The circuit evolves Adding resistance measur...
MEP EP#240: Disturbed Solder Accuracy
September 02, 2020 22:55 - 40 minutes - 55.9 MBMEP EP#240: Disturbed Solder Accuracy Parker Got a fully automatic screen printer! ESE US-2000X Potentially lower our minimal paste size Twitch Live Stream podcasts? Amazon multimeter probes Stephen High voltage low current measurement Don't want to break the connection so a traditional ammeter isn't going to work Sticking with the read both sides of a resistor method Caddock 1776-C681 high voltage high resistance high tolerance divider 1/100 so 0 to 500v becomes 0 to 5v ADC - M...
MEP EP#239: Frictionless Spherical Cow Transformers
August 26, 2020 21:09 - 50 minutes - 68.9 MBMEP EP#239: Frictionless Spherical Cow Transformers Parker Garage Door opener hacking Converting my normal style garage door opener to a “jackshaft” style opener Reversing the direction of the A/C single phase motor? Split phase motors One phase is shifted with a large capacitor by ~90 degrees In my application I just had to reverse the wires and the end stop wires PyInstaller Can take your python scripts and make it into a self contained application Useful for non technical inclin...
MEP EP#238: Better Encryption than Zoom, Firmware Stacks with AND!XOR
August 19, 2020 19:56 - 1 hour - 111 MBMEP EP#238: Better Encryption than Zoom, Firmware Stacks with AND!XOR AND!XOR Previous podcast episodes: Incognito Mode which was episode number 69 Arduino, The Gateway Drug To #BadgeLife which was episode number 109 Espress-ify? Designing Products Around the ESP-32 Platform which was episode number 144 Feel the Hum which was episode number 183 Firmware RTOS vs No OS (i.e. Arduino or pure SDK usage) What about a Bootloader? Zephyr RTOS DTS Config Drivers Whats good about Zephry...
MEP EP#237: Ice Cream Solder Paste Equipotential
August 12, 2020 22:11 - 57 minutes - 79.1 MBMEP 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 ...
MEP EP#236: Excited Electrons
August 05, 2020 22:06 - 1 hour - 82.4 MBMEP EP#236: Excited Electrons Parker Lead Forming Topic Tools 3D printed forms Best practices? Cat Feeder Unreminder Choosing a solar panel Solar Panels generally act like a current source across its useable power band Specifications that are important Power (Watts) - Max Current @ Peak Power Voltage @ maximum power point (Vmpp) Vmpp - Voltage @ open circuit (Voc) AEM10941 Solar Panel Chip Max V is 5V so open circuit can’t be higher then this MPP is set by 2 configuration p...
MEP EP#235: Solar Freaking Cat Feeders
July 29, 2020 21:40 - 59 minutes - 81.2 MBMEP 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 sectio...
MEP EP#234: Bashing LEDs
July 22, 2020 20:46 - 44 minutes - 61.7 MBMEP EP#234: Bashing LEDs Parker Didn’t get to work on the Cat Feeder Unreminder but there are lots of interest and ideas in our slack channel! TheStumbler Found a 12hr egg timer. Defeats the purpose of building and learning a new embedded skill. Eric McFall E-Ink for the persistent display. This is a great idea. I will look through my parts bins for a e-ink. Might have one. Derek Does it count as feature creep if the project is still doing the same thing but is way more complicated?...
MEP EP#233: Good Enough for a Bagel
July 15, 2020 20:08 - 42 minutes - 38.9 MBMEP EP#233: Good Enough for a Bagel Parker The Cat Feeder Unreminder Bagel Pin Toaster Controller usable? PT8A2514APE MC14536B 24 stage stage counter with on board RC oscillator Stephen SPI Code Bytes Working on the second PCB revision of a product Code that worked on previous revision didn't work on the new prototype! Changed Chip Select pin for the SPI buss R.F.O. Grant Imahara passes at 49 Maxim is being purchased by Analog for 21 billion dollars
MEP EP#232: Chonky Motherboards
July 08, 2020 22:12 - 51 minutes - 70.3 MBMEP EP#232: Chonky Motherboards Parker The Cat Feeder Unreminder Different implementations to accomplish the goal Stephen Synth DSP replacement Korg MS2000 Was pulling an additional 500mA on the power supply Found a blown surface mount fuse The DSP chip XCB56362PV100 was hot to touch Replaced with part found on ebay Wasn’t sure if this part needed programming LED Matrix Driver - IS31FL3741 39x9 LED matrix = 351 individual color leds or 117 RGBs QFN-24 package 256 levels of PWM...
MEP EP#231: Throw The Bacon Across The Stage
July 01, 2020 23:13 - 45 minutes - 62.9 MBMEP EP#231: Throw The Bacon Across The Stage Danny Rankin An instructor in the creative technologies and design program at the University of Colorado Boulder The courses he teaches and his individual research reflect a diverse array of expertise, including graphic design, material fabrication, game design, hardware hacking, sustainable agriculture and large-scale installation art Danny was a guest on MEP episode #171: Mayonnaise Drone (And Other War Crimes) Danny’s experience with teach...
MEP EP#230: We Are All Idiots Together On This Planet
June 24, 2020 20:41 - 1 hour - 89.2 MBMEP EP#230: We Are All Idiots Together On This Planet Parker Brewery is autotuned and sight gauges calibrated New Alternator for Wagon Brewery is “done” from a build standpoint for this season Parker’s next podcast project Stephen On track to brew on Saturday! Got the whole box built and wired over the weekend Cheapo pump from amazon just arrived today EDA workflow and footprints Do you do things based on the footprint? When is it ok to rely on someone else's footprint? Standard...
MEP EP#229: Get Cute This Weekend
June 17, 2020 19:51 - 57 minutes - 78.7 MBMEP EP#229: Get Cute This Weekend Parker Brewery Lives! Test boil and Process Issues with the current iteration of the brewery What is next Take Inventory of Brew Equipment Spare parts Storage on cart Clean and Fire up Fermentation chamber Clean the brewery Ingredients BREW Future? Motorized valves to simplify the fluid transfer process Drains at bottom of vessels? Better way to change set points on the PID controllers? A/C window unit Wine Chiller Parker Kool 2800 Issues ...
MEP EP#228: Weapons of Mathewson Destruction
June 10, 2020 20:27 - 49 minutes - 68 MBMEP EP#228: Weapons of Mathewson Destruction William Mathewson An entrepreneur, electrical engineer, and user experience designer for his company William Mathewson Devices otherwise known as WMD Began WMD in 2007 Designed over seventy products that inspire artists and sound designers throughout the music industry Starting A Hardware Manufacturing Company The name WMD How did William arrive at deciding to start WMD? What do y'all do at WMD? The story? How did it all start? Pedals t...
MEP EP#227: Ultrasonic Beer Science - Eli Hughes of Tzero
June 03, 2020 18:02 - 1 hour - 102 MBMEP EP#227: Ultrasonic Beer Science - Eli Hughes of Tzero Eli Hughes The CTO of TZero Research and Development TZero was founded in 2016 by 3 Penn State University graduates who have training and experience in embedded systems, acoustics, mechanical engineering and software Technical background is in electronics, software and acoustics Currently also does work for NXP semiconductors Worked at the Penn State Applied Research Lab where he worked on applications in sensors, condition base...
MEP EP#226: Chickens and Tea leaves, Al's Simulation Recipe
May 27, 2020 21:57 - 58 minutes - 80.5 MBMEP EP#226: Chickens and Tea leaves, Al's Simulation Recipe Al Williams One of the authors behind Hackaday, a website that features electronic projects and other things that appeal to people interested in computers, electronics, and technology Ham radio operator Author of many books Has worked on everything from underwater technology to the International Space Station and just about everything in between Was on previous episodes EP#57: Mr. Williams, your book changed my life EP#94: A...
MEP EP#225: Clipping and Clamping OpAmps
May 20, 2020 21:52 - 54 minutes - 75.5 MBMEP EP#225: Clipping and Clamping OpAmps Stephen DC heaters continued Tested the new values Last episode was shooting for ~250mW of dissipation in the regulator and transistor Measuring closer to 350mW Quiescent current and some balancing and tolerance Opamp clamping circuit A useful voltage clamping circuit with independent upper and lower thresholds Pros Much more accurate than the simple clipping circuits Hard turn on characteristics Can be overdriven without much issues Not ...
MEP EP#224: The Normal Chaos
May 13, 2020 22:11 - 1 hour - 91.4 MBMEP 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 a...
MEP EP#223: The Inverted Success Funnel - IdeaFab
May 06, 2020 22:18 - 1 hour - 91 MBMEP EP#223: The Inverted Success Funnel - IdeaFab The Idea Tank Podcast Scott Hansen and Eric Benzenhoefer are idea men who, not humbly, seek to change the world through sharing their million dollar ideas, and humbly, seek to make a podcast talking about their idea Scott and Eric where last seen on the MEP on Episode 77: The IdeaFab Podcast The Ideas King...or Queen... of Cooking Saving the restaurant industry Allow entry level chiefs compete in restaurants Big Brother Brands You al...
MEP EP#222: Turning It On - New Design Checklists with James Lewis
April 29, 2020 23:26 - 1 hour - 112 MBMEP EP#222: Turning It On - New Design Checklists with James Lewis James Lewis His passion for teaching non-engineers has led him to create the Baldengineer Blog and the AddOhms video tutorial series With 20 years of experience in electronics, marketing, sales, and teaching, James boils seemingly difficult concepts down to the core, so that anyone can learn what they need to finish that next great project James was on the previous MEP EP#141: It Depends – An In Depth Look at MLCCs with J...
MEP EP#221: ThunderOhm Style
April 22, 2020 22:41 - 58 minutes - 80 MBMEP EP#221: ThunderOhm Style Josh Rozier Been on the previous MEP episodes MEP EP#152: Third Annual MacroFab Star Wars Christmas Special – Vader’s Fake Fingers MEP EP#174: Apply Inspiration Here MEP EP#178: Little Shop of Transformer Horror MEP EP#204: Fourth Annual MacroFab Star Wars Christmas Special – C3PO Steals the Show Layout Experiences The What-A-Booster Reverb Pedal Power supply Through hole to SMD transition EDA tools What and how did you get started? Analog stuff? S...
MEP EP#220: Blinky is 90% of Your Project
April 15, 2020 22:10 - 1 hour - 57.3 MBMEP EP#220: Blinky is 90% of Your Project Parker Hoppes #9 for the printer seems to work well Will it hold up long term? Still waiting on fans for the printer and other various parts Jeep Fan Evolution Fabio and Roger on the MacroFab Slack channel has suggested the nRF Series NRF52-DK Arduino compatible Stephen Connector Woes JST style connectors A family big enough to have their own wiki Hackaday has a good article Looking at XH series 2.5mm RC battery pack connector CNC ...
MEP EP#219: Virtual Earth Mixers
April 08, 2020 22:32 - 52 minutes - 72.4 MBMEP EP#219: Virtual Earth Mixers Parker Brewery Update Still bending tubes Going cheap and buying a roll of stainless steel tubing was a mistake Started looking into the Jeep Fan controller project again Evolving into a Body control module Investigating the best way to add wireless remote control? Pinotaur LED REV2 design is completed Using those APA-102C-NEW-260 Working on a motor controller add-on for the Pinotaur board Socketed motor controllers allow stepper or DC motor contro...
MEP EP#218: Like Old Cheese
April 01, 2020 21:59 - 57 minutes - 78.5 MBMEP EP#218: Like Old Cheese Parker 3D printer upgrades Waiting on parts Brewery Printed the pump brackets Bending Tubes and mounting brackets tonight Stephen Frequency counter woes Found the led driver. It is not a pic like was suggested ZLG7289BS Translated the document Page 7 has a schematic that looks like it will help Rotary switching Doing it “right” this time Purchasing the switch before designing the board Part numbers STmicro website? Why? Dave Jones and documentat...
MEP EP#217: Frequency Stability Dependability
March 25, 2020 21:25 - 1 hour - 89.3 MBMEP EP#217: Frequency Stability Dependability Parker Reverse Engineering Tools? Calipers Edge profile gauge Dial indicator with radius gauge attachment Angle finder/gauge Good Scanner? 3D printer improvements for the Monoprice Ultimate Maker Stuff it already has Internal RaspPi running octoprint MicroSwiss metal hot end Enclosure BLTouch Better cable management Fixed print surface improvements Fan upgrades Switch to a faster bed heater? Lubrication suggestions? Stephen ...