I didn't understand 80% of what happened in this video but it was one of the most satisfying things i've ever watched.

I feel like a phone sex operator just spoke to me in pretend English for 35 min. I enjoyed every second.

I have not seen DIY vapor phase reflow soldering before! The potential lethal danger adds that special level of excitement!

Oh Mr Reps I have missed you so much

Need moar ppms! Nice work and thumbs up for CERN folks for pushing DIY metrology forwards!

"Few hundred thousand dollar assembly line" *Looks nervously at the two students tasked at soldering 200 boards by hand*

- Ok, time for bed * Another video of Marco Reps pops in UKposts * - You know? Still some minutes for another video

I, gentleman, hereby manifest my interest in some Marco Reps bath water.

When Mr Reps said "straight FROM THE ARCANERY" was the most memorable bit for me :D but his voice is pure ASMR!

I understand so little of what you are talking about but can totally appreciate taking on a project of this size! Very well done!

".. or with an angle grinder, if you are THAT guy." I lost it there

You got an LOL out of me with the line: “It can’t be that hard, can it?” Beautiful piece of equipment. Throughly enjoyed the build.

What!? Vapor phase soldering is a thing? -You just sent me down a rabbit hole...

"now we are powering up the sugar fueled AI pick and place inspection machine" 😂

I am an amateur but one thing I designed for myself was rather ridiculously overengineered controller for espresso machine. This isn't simple PID but rather it uses thermal model of the entire device, moving horizon estimator to run that model 50 times a second and kalman filters to continuously correct model parameter changes over long periods of time. It is precise enough to give accurate estimate of the amount of scale in the boiler! One challenge was building an ultra low noise and high precision thermometer in a harsh environment (moisture and huge temperature gradient). The thermometer had to resolve 1/1000th of a degree to get fast and accurate measurement of temperature change rate. In the end I figure out that the biggest problem wasn't even the temperature difference (could be accounted in software) but rather temperature gradients. I split the design to a power board which contained power supply and triacs to turn on/off heater, valves and pumps from the sensitive measurement board and I built 4 layer enclosure to envelope the sensitive board with a shield that alternates layers of copper and thermal insulator (from inside: copper, foam, copper, foam). I then had a temp probe mounted on board and used it to compensate results. In this case the actual absolute results don't matter much (it does not make a difference whether water used to brew coffee is 0.1 degrees hotter or colder) but rather I needed fast and continuous measurement of rate of change so that I could predict to less than 0,5s when to reduce the heat from full power and to what level so that predicted brewing temperature is achieved as quickly as is possible and then kept stable without any over or undershoots.

I love LEMO connectors. Incredibly expensive, but widely used in medical instruments for very good reason. The quality is unmatched, and you can get ridiculously small connectors with amazing voltage and current specs.

Glad you can profit from the open sourced equipment designed for fundamental research. Thats one reason why research is important, in my opinion. You went full out with all the components. No cheap session at all. Very nicely done Mr. Reps.

A plated hole sounds like something you'd send the apprentice out for.

This is absolutely hands down the most impressive video you have ever made! Wow! Mr carson's lab quality process and signal path level circuitry. Amazing. I'm glued to my phone haha

The dry delivery had me smiling, but the ring had me laughing out loud! This was phenomenal work for someone working at home, and at a level of quality I'll never see.

What a funny, informative and interesting video! Your level of skill and diverse talent is just so inspiring! Really love your channel, please keep up the awesome work

16:37 a thing of beauty a joy forever

'Not always so serious video'.... it's that kind of German sense of humor that keeps us going ! Much appreciated. Excellent video all together !

I'm excited to see the results from the DIY vapor phase reflow setup 🚀

Enjoy your PPMs Marco, CERN has blessed us

WOW, that DIY vapor soldering technique was brilliant, no need for an IR oven...

That feeling when you take 30 minutes of your day to bask in the raw magnificence of a beautiful machine coming together. Wonderful work Marco and nothing but love to CERN for open sourcing this. Magnificent work by everyone. Thank you for sharing.

I don't know why but I keep coming back to watch this video. Screw "low-fi beats to study/relax to" I want to see Marco build this damn multimeter

I'd never come across vapour phase reflow before? and the cutting edge techniques in this video were fascinating. It must be such a personal achievement to build something like this, and how amazing that CERN continues to drop all these advances back into the wider community.

Damn i love this time of the year when Marco uploads video

The detail & that nice PCB design is just OUT TO SPACE !! Nice work !!

An astoundingly ambitious project and build. Very impressive.

The lord of ppms has returned. Didn't expect any less, and you brought this on yourself.

For the front panel, look into Alodine or Iridite chromate conversion coating. If you know what alloy the front panels are made of, you may be able to find an anodizing house that can treat them for you. They both can be specified as electrically conductive, and would be suitable for your ground contact, while still protecting the aluminum. If youre feeling extra spendy, you can have done with a mask so the main portion of the panels are anodized, while a contact ring on the back side is a conductive conversion coating. Or get them nickel plated. Polished first, if youre feeling a bit garish, brushed or sanded if youre not.

Such perfection, components, voice and manufactoring made my life

Yay convective tombstones!! Your Rube Goldberg reflow technique is on point. Love the content, please keep going.

‚..one has to resist the urge to eat that yellow snow‘. -> Zappa spotted

Great results! And wow that BOM cost 😮

Wow I love your enthusiasm! Having the balls to invest 2k BOM into a voltmeter is some heavy engagement. And your humor is just unique!

Those standardized enclosures are awesome. I will have to keep them in mind for projects.

Finally a New Video !! Keep up the Awesome work !!!

marco you absolute mad man hand placing all of those components, color me impressed

Marco, you need to do more vids. We miss your soothing voice and witty commentary when you don't. My wife, who knows nothing about electronics absolutely loves you! She will be ecstatic when I show her this new vid. Thank you

Absolutely superb! Really looking forward to that 10V source that may or may not be the subject of the next video...

Holy shit it’s like Christmas! I find you in every deep dark corner of the UKposts comments sections…metrology and 8.5 digit videos. So I know you’ve been around. Glad to see you finally came back to your own channel! Now get back to the lasers… Pronto! You can’t just buy a bunch of nice fiber lasers like that and then let them sit around 😂 It’s your fault I didn’t get a newer truck this year. But I do have a few nice fiber lasers (bought for pennies on the dollar on eBay. But still expensive). And soon I will have my 8.5 digits of glory recalibrated and displayed in all of her beauty. A year ago I was completely happy with my trio of 34401A meters. What have you done to us!? You and Mr. Carlson are the only ones I’ve ever considered and I’m glad to donate/join patreon

If you’re looking to improve that linearity, polynomial regression is probably a poor choice for the calibration curve due to that “wobbliness” you talked about with your tenth degree function. You can avoid that, along with reducing computation cost and error by using cubic splines. In layman’s terms they’re glueing together third degree polynomials to form a smooth continuous curve without any ugly wobbles. Hope that helps! 🙂

I'm actually glad you only post a video every couple of months or so, considering how much psychic damage I take from each one. It takes nearly a month to completely process all the new things I learn each time.

a new Reps video always makes me smile. This video was excellent!

I'm looking forward to a shot of you and the dogs on a walk through yellow blooming fields as the intro for a 3D printing video. And then a text on the screen: "RepsRaps" 'tschuldigung

Another great video and I did not even knew CERN had such great project as an open-source! Great once again !

You're a genius; both of the engineering and comedic variety. Subscribed sir

Probably the most satisfying video I have ever seen, outstanding work.

You didn't cnc engrave the front panels?

"Kinda makes me want to get back into modular synthesizers" PLEASE DO! (I'm building one too :)

i work with car electronics. hobby is amp repair. i must say, im disappointed I did not find your channel until today, VERY top notch content! you are also an EXCELLENT Technical narrator. you should offer to voice over technical training videos for freelance side income - i know the training videos i have to sit through would be much high quality with someone of your caliber

I think this is my 6th time coming back to this video and it still looks like wizardry, brilliant work Marco

When can I preorder the Engineer Bathwater™?

I used to work in the production of thin film resistors for a company now owned by Vishay. It's actually a neat process to watch

Wow, just wow. That was pure art. Better than any Hollywood blockbuster. Great script. Wonderful humor. Thank you.

Great project Marco. A bit off topic, but your CNC work is spectacular. All that micron chasing earlier seems to have paid off.

Just here to say, that i love your videos and you are everything i strive to be some day. Also nice Pirate Party Card :D

Oh, Invoker's voice. Sometimes I forget you play some Dotes. Hope you like the animated series

Ow yes i was looking forward to this. you always give just enough time inbetween vids to watch all your others a second time

I just found this video, it's really awesome congrats! I'm designing a lot of analog stuff I'm interested in low noise design. Keep up the good work.

10:13 cracked me up!!! I was not prepered..! xD I have tried that; Hurts nearly as mush as stepping on a logo! ]:-)

"it's kind of a trough, for humans"

I always learn something new with every new reps video

The finer points escape me, but I admire your passion for precision.

Holy cow, this is some next level nerd porn, I need to take deep breaths and sponge myself down with a damp copy of practical electronics from 1972. I'd also like to know how you train your dogs to harvest such accurate components, mine can't even manage to find a stick she's capable of carrying without tripping over it!

God I miss your humor, my friend. I really enjoy when you upload.

Great video, learned a lot while enjoying your banter!

Never knew about low noise metal foil resistors, eyewatering prices compared to thin film. So many great features and techniques to push the noise floor down. Great work. Subscribed.

Since you get that much Samples with some Noise, you might look in to "ADC Oversampling" instead (or beside) using a simple averaging. I'm no expert, but that way you can boost the ADC Bit count and smooth it out at the same time

I didnt realise that CERN released their designs but making them available for self production is truly wonderful. Your manufacture and walkthrough is similarly wonderful. Thank you. I suppose next thing is to bin the FPGA and replace it with a re-programed Tesla AI chip, to get another 3 digits of resolution? 1pV you would need to dig a big underground well screened room to be able to use it.

Never stop make vids like this! Over my skill level. But I truly enjoy both the voice and humor. Combined with great content. Its Awsome!

Oh dear I missed you so much, this is incredible work !

“Expect intense satisfaction” .. noted

People like him and ben krasnow always make me feel incredibly dumb. I couldnt even follow crudely how this thing works.

Excellent and truly impressive project. A real damn thing of beauty and a joy for ever!

you really inspire me to keep working, your videos are amazing still like this

The utmost level of reverse engineering. "Reps-lication"

Better not use the "tub" solder paste servings. They dry out much quicker than a hobbiest can use them up.

I can’t believe your incredible knowledge or how you achieve what you do, but hats off for a brilliant journey into the depths of physics and electronics so far removed from the average enthusiasts mental capacity. Well done. Brilliant!

Wow, you did again Great video as always just as @David, was heading for bed, but a video from you can't be ignored!

I personally find that solder paste in a tube is worth the slight loss every time you use it compared to the tubs of the stuff. I've noticed that the continuous exposure to air dries out the flux in tubs of paste, and even when you rejuvenate it with a bit more liquid flux, it's still never "factory new." I always get near flawless reflows with minimal bridging when using paste out of a syringe. In the end, I always use up the entire tube of paste while the tubs have to be thrown out prematurely.

Reichelt is a very dangerous place! Never ordered so much stuff I don't really need.

You video popped here out of nowhere, but as it was about a voltmeter open sourced from CERN I became curious. Oh boy, the best thing about know another language is to be able to learn different things from different places. That was really a enjoyable video to watch and your narration with that's suspense intonation was at the same time engaging and hilarious. I loved the small cracking jokes. Thanks for the great peace of work. Regards from Brazil!

nice everything including the galden based vapour phase DiY oven.. congrats

Yeah that Keysight giveaway, it’s qualifications for entry are extraordinarily limited. Unless I’m going to lie. And I’m in a profession that uses their equipment. Except none of it is Keysight branded. Wonder why?

"get back into modular synthesizers" when did you leave? and why?

The bright star of my evening! Marco posted new video! Praised be the voltage gods

By far, one of your best videos, man!. Cheers

That is a sexy _SEXY_ piece of hardware! I want it in my life so bad.

10:17 Hurt my soul. I don't care if it's not real.

I remember the talk of a doctor in physics at my university, he says: in CERN they have some of the finnest electronics working on the experiments, I never understand what exactly he refers with finnest up to now with this video, thanks for sharing your effort and for the pleasant build.

Your videos are always very informative thank you!

Your sense of humor is nearly English level.

I never know what you're talking about but I can't stop watching.

My first look at Mr Reps, too funny yet still informative! Thanks!

first video i watch from you....instantly amazed by your style xD