same with me im not even sure what its supposed to do really but i did watch the whole thing :) and enjoyed it i think ! wouldn't want to watch to meany or often but interesting.
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.
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.
@@quistador7 No way should people solder SMDs by hand in a production plant. I'm skeptical. Not when there are machines with SMDs belt fed in strips that can do a whole board in a fraction of the time.
@@quistador7 Better question: Who would buy a product that costs 8 times more money and is less reliable due to inferior soldering consistency and precision?
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.
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
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
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.
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.
While I knew vapor phase soldering was a thing, I never knew that you could do it with such a simple setup...I don't think i will attempt to repeat what marco did though...
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
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.
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.
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! 🙂
The point of the 10th degree polynomial is that he's trying to compensate for as much of the repeatable non-linearity as possible, so that he can determine an accurate figure for the non-linearity of subsequent measurements.
@@BrotherCreamy That’s correct, he’s using a polynomial regression to compensate for known error between the ADC and calibrator. I’m suggesting that instead of using a polynomial regression, he should try using cubic splines as they are cheaper to compute and don’t have the inherent instability of polynomials. It will still accomplish the same goal (mapping a continuous mathematical function to discrete error data) but it will do it more efficiently and without unwanted wobbles in the function.
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'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.
Vapour phase reflow soldering is very common in the electronics industry, but doing it homebrew like he showed is new to me. And kind of dangerous if you ask me based on the side comments. I have seen folks do reflow in toaster ovens, but the vapour flow has better uniform penetration.
Here in the UK, I used to do vapour phase reflow back in the early 1980s, when SMD cmponents were a novelty. It was very popular for small-scale production as it was both easy to set up and made for a compact installation. Unfortunately, it fell out of favour as infra-red reflow 'conveyor' ovens became more popular. This was mainly because the VPR tanks, at the time weren't very environment-friendly - the process tended to use CFCs as the heat-transfer medium, which caused a general problem with 'lost' vapour, and a specific problem for the user, as the decomposition products of the vapour, if it came into contact with something hot, for example, were highly toxic. We had a couple of occasions where the operator had ignored the 'No Smoking' signs and drawn a lung-full of the vapour through a lit cigarette (yes, those were the days when you were allowed to smoke at work🤣) and essentially gassed herself to unconsciousness... Good to see it making a comeback, with slightly safer fluids 😃
@@____________________________.x yes, they are fairly expensive, but if you’re doing it right, you shouldn’t be ‘consuming’ much of it, so it will last a long time.
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.
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!
@@reps Super Cool Marco! thanks once again for your great videos! Keep it up! The only Thing I really would not make is your SMD solder process ... I mean ... it's ok but ... a small oven with quartz heaters is very inexpensive and we can get a simple SSR and a arduino Pro mini to switch it in order to make a correct temperature profile for the solder process. just sayin' ... just sayin' ... But Great video once again!!
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
Normally i would say that Marco is way too geeky and "dry" for me to find interesting, but your "dry" humor and entusiasm seriously hooked me on this channel!
TBH I'm sure someone like Marco with his skills can afford that. But for me BOM would be the easy part, designing the enclosures and putting everything together would be hard. And you've got to have all the fancy gear for that :)
Holy shit it’s like Christmas! I find you in every deep dark corner of the RUclips 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
i am not an electrical or electronics engineer but yet i find myself here every time you have a video, the jokes and the humor top notch my only question is what kind of savage would dislike this video...must be the guys that work for the other company that isnt Vishay
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!
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
On a personal preference note, I don't usually like high priced builds without a specific purpose. This was somehow an exception and very enjoyable - perhaps because promoting open standards is dear to my heart. So thank you for this, please carry on.
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.
This is all exceptionaly impressive. Lots of new techniques, cool equipment and strategies. Bonus points for torx fasteners. Thank you for showing! You should really start a company around your skillset if you haven't already. You would probably do very well, and over time that position would allow you to make even stronger content and establish better relationships with various larger companies. Low and medium volume production is quite different from single projects like this, but I think you have the right kind of personality to be able to optimize it to be profitable while maintaining high quality. This channel would give you the necessary marketing. Kind of what Doug DeMuro did with his "cars and bids" site/business. Regardless, thanks again and good luck!
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!
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.
In the software section I could not help but think about machine learning practices with the polynomial fit that was implemented. I would recommend reading about overfitting and underfitting. But also the fixes for that: testing and validation data sets and cross-validation. This would give some insight in whether the numpy fit was actually any good in explaining the variance in the data, without being too sensitive to this data.
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.
I buy the smaller syringe ones. Even then only 1 or 2 at a time and keep them in the fridge. I only really use them with copious additional flux for hand soldering TSSOPs. I really should start getting to grips with BGSa now.
you can use the fpga like a DSP and program your signal processing function in hardware. That will get you plenty of speed to do the processing as long as you have enough cells.
"Early bird entry" 😁 Early bird may get the worm, but the second mouse always gets the cheese. 🤣 Just had to. Great video! Halfway through I realized the product wasn't even near to what I thought you were making, but I still enjoyed it. 👍
Oh man. Everything except the 7.1V divider and amplifier block flies above my head. I have to ask my teacher about that LTZ1000A circuit because I can’t even begin to wrap my head around it. I got to see some industrial instrument circuits in my internship, but this is a completely different level of precision.
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?
Are there new qualifications? In the past it all seemed to be based on international ludicrous tax laws on gifts (USA included) and prizes. So only countries that aren't total assho' could be involved. Then import duty and sales tax laws. Essentially if you have a Keysight office in your country then the device could be imported from Malaysia or wherever to there at no cost and then sent on to the winner with no tax/duty burden. Except USA which has a bizzarre gift tax.
Hi. I should go on about how crazy-cool it was to do vapour phase soldering in your kitchen, but I'm too busy laughing at the 'sketch part' of the presentation (standing on the upturned 555 - showing my age here - and toppling a board); that was absolutely hilarious! :-D
Amazing! Great job! And thanks for the hint with Grafana. As i recently build a sensor data acquisition systems that logs over network into a RAM buffered SQLite database, I will give it a try. Hopefully it can take advantage of selecting data from the tables instead of bulk loading every ASCII line tokenized via string-to-float into memory. I find those CSV files annoyingly slow to handle ;)
I didn't understand 80% of what happened in this video but it was one of the most satisfying things i've ever watched.
especially the inserting cassette part ooooh
You understood 20%? I'm impressed! I didn't understand 99%. I'm pretty sure he's talking in Klingon.
im glad im not the only idiot not understanding but enjoying.
same with me im not even sure what its supposed to do really but i did watch the whole thing :) and enjoyed it i think ! wouldn't want to watch to meany or often but interesting.
Didn't get much neither, but have to admit it was pretty well explained
I have not seen DIY vapor phase reflow soldering before! The potential lethal danger adds that special level of excitement!
@lmamakos -
Yes, it´s a bit "ElectroBOOM", but more chemical than electric
I understand so little of what you are talking about but can totally appreciate taking on a project of this size! Very well done!
Need moar ppms! Nice work and thumbs up for CERN folks for pushing DIY metrology forwards!
or is it fewer ppms?
Cancel all ppms at the legislative level and to penalize for ppms.
Oh Mr Reps I have missed you so much
i like how the vid is like 54 minutes old for me and you commented is 3 days ago on a video starting with black holes
4 days ago??
We miss you too Jordi
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.
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.
I feel like a phone sex operator just spoke to me in pretend English for 35 min. I enjoyed every second.
I never had electronics and porn confused with each other before this.
And then you get to 5:41...
@@CristiNeagu Or 6:53 "expect intense satisfaction"
@@R67K hahahahahahaha!! Duke Nukem was my favorite!
It's like being a lucky TEC bastard living right in the middle of a precision sandwich filled with sweet erotic technical jargon.
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.
are there more details of that project or public resource? Sounds interesting.
@@davidkissling4093 Nah, it is just my first project to learn some electronics design, have something with a real board and integrated ARM, etc.
Did you get a good coffee at the end?
Sometimes the journey is more important than the destination :)
Did the coffee taste 10% better in the end?
"Few hundred thousand dollar assembly line"
*Looks nervously at the two students tasked at soldering 200 boards by hand*
They're being paid $40/hr though
@@wesleymays1931 where? you pay them to much. they are competing and do the job even vor $4/hr
@@wesleymays1931 nah we have an SMD plant near me and the soldering stations make $18/hr
@@quistador7 No way should people solder SMDs by hand in a production plant. I'm skeptical. Not when there are machines with SMDs belt fed in strips that can do a whole board in a fraction of the time.
@@quistador7 Better question: Who would buy a product that costs 8 times more money and is less reliable due to inferior soldering consistency and precision?
I, gentleman, hereby manifest my interest in some Marco Reps bath water.
Also us ladies!
So, electrolyte?
@@TheGodCold The kinkier the better.
I would prefer bathwater of that ADC!
I will gladly cover the cost if you drink it on live feed.
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.
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
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
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.
yep. I've worked at companies that use LEMO connectors for as much as possible, and they are amazing.
Yes they feel great
'Not always so serious video'.... it's that kind of German sense of humor that keeps us going ! Much appreciated. Excellent video all together !
When Mr Reps said "straight FROM THE ARCANERY" was the most memorable bit for me :D but his voice is pure ASMR!
ONE OF MY FAVORITES
invoker
It's a sampled quote from the Invoker character from DotA 2
Its invoker voice line from dota2 xd
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.
- Ok, time for bed
* Another video of Marco Reps pops in RUclips *
- You know? Still some minutes for another video
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'm excited to see the results from the DIY vapor phase reflow setup 🚀
I kept thinking of sending someone to get a bucket of condensed steam.
What!? Vapor phase soldering is a thing? -You just sent me down a rabbit hole...
Yes for a long time. As a student in University I was using such machines in 2006. That liquid is pretty nasty :-(
@@buggi666 How is it nasty? Shouldn't it be perfectly inert unless you overheat it?
@@kasparroosalu You are right but overheating can happen easily depending on the pressure and heat distribution within the vessel...
While I knew vapor phase soldering was a thing, I never knew that you could do it with such a simple setup...I don't think i will attempt to repeat what marco did though...
@@kasparroosalu It sits in your liver like Tetraflouromethane does and screws everything up.
WOW, that DIY vapor soldering technique was brilliant, no need for an IR oven...
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
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.
Although I’d advise against DIYing chromate. It’s the sort of stuff you want to keep as far away from home and your body as possible.
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.
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! 🙂
Yeah the tenth degree functions should be way over fit to the data no? Thats what would be causing the wobbles
The point of the 10th degree polynomial is that he's trying to compensate for as much of the repeatable non-linearity as possible, so that he can determine an accurate figure for the non-linearity of subsequent measurements.
@@BrotherCreamy That’s correct, he’s using a polynomial regression to compensate for known error between the ADC and calibrator. I’m suggesting that instead of using a polynomial regression, he should try using cubic splines as they are cheaper to compute and don’t have the inherent instability of polynomials. It will still accomplish the same goal (mapping a continuous mathematical function to discrete error data) but it will do it more efficiently and without unwanted wobbles in the function.
@@shingGOLDmonkey224 I agree - 10 degree polynomials are almost sure to overfit. i like your method better with little chance of overfitting.
Ohm law eat your heart out. fm.
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
Enjoy your PPMs Marco, CERN has blessed us
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!
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.
Vapour phase reflow soldering is very common in the electronics industry, but doing it homebrew like he showed is new to me. And kind of dangerous if you ask me based on the side comments. I have seen folks do reflow in toaster ovens, but the vapour flow has better uniform penetration.
We used to make PCAs, our machines were the molten wave type (whatever the technical term for that was)
Here in the UK, I used to do vapour phase reflow back in the early 1980s, when SMD cmponents were a novelty. It was very popular for small-scale production as it was both easy to set up and made for a compact installation.
Unfortunately, it fell out of favour as infra-red reflow 'conveyor' ovens became more popular. This was mainly because the VPR tanks, at the time weren't very environment-friendly - the process tended to use CFCs as the heat-transfer medium, which caused a general problem with 'lost' vapour, and a specific problem for the user, as the decomposition products of the vapour, if it came into contact with something hot, for example, were highly toxic. We had a couple of occasions where the operator had ignored the 'No Smoking' signs and drawn a lung-full of the vapour through a lit cigarette (yes, those were the days when you were allowed to smoke at work🤣) and essentially gassed herself to unconsciousness...
Good to see it making a comeback, with slightly safer fluids 😃
@@johng8pef11 I looked up the chemicals for this, and they are incredibly expensive
@@____________________________.x yes, they are fairly expensive, but if you’re doing it right, you shouldn’t be ‘consuming’ much of it, so it will last a long time.
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.
Such perfection, components, voice and manufactoring made my life
I am developing a tig welder. And as a mechanical engineer i appreciate all the electronic engineering and references on the tube.
16:37 a thing of beauty a joy forever
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!
Another great video and I did not even knew CERN had such great project as an open-source! Great once again !
And there are many more: ohwr.org/welcome
I already have parts and PCBs for another one here :)
@@reps Super Cool Marco! thanks once again for your great videos! Keep it up! The only Thing I really would not make is your SMD solder process ... I mean ... it's ok but ... a small oven with quartz heaters is very inexpensive and we can get a simple SSR and a arduino Pro mini to switch it in order to make a correct temperature profile for the solder process. just sayin' ... just sayin' ... But Great video once again!!
Wow, just wow. That was pure art. Better than any Hollywood blockbuster. Great script. Wonderful humor. Thank you.
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
Excellent building report and craftmanship. Next thing you know is that CERN open sources the LHC and Marco Reps is building it in his backyard!
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
Normally i would say that Marco is way too geeky and "dry" for me to find interesting, but your "dry" humor and entusiasm seriously hooked me on this channel!
marco you absolute mad man hand placing all of those components, color me impressed
Great project Marco. A bit off topic, but your CNC work is spectacular. All that micron chasing earlier seems to have paid off.
Great results! And wow that BOM cost 😮
TBH I'm sure someone like Marco with his skills can afford that. But for me BOM would be the easy part, designing the enclosures and putting everything together would be hard. And you've got to have all the fancy gear for that :)
I didn't understand the vast majority of this video. But Mr. Rep's amazing voice and his sense of humor kept me watching til the very end.
The lord of ppms has returned. Didn't expect any less, and you brought this on yourself.
".. or with an angle grinder, if you are THAT guy."
I lost it there
@Peter Mortensen : Strike was once a thing as well.
Holy shit it’s like Christmas!
I find you in every deep dark corner of the RUclips 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
The finer points escape me, but I admire your passion for precision.
Damn i love this time of the year when Marco uploads video
i am not an electrical or electronics engineer but yet i find myself here every time you have a video, the jokes and the humor top notch my only question is what kind of savage would dislike this video...must be the guys that work for the other company that isnt Vishay
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!
I worked with those LEMO connectors ...... awesome material. Great work.
You didn't cnc engrave the front panels?
I never know what you're talking about but I can't stop watching.
"now we are powering up the sugar fueled AI pick and place inspection machine" 😂
LOL!! It can adapt to changing conditions and solve problems so well!
Yay convective tombstones!! Your Rube Goldberg reflow technique is on point. Love the content, please keep going.
"Kinda makes me want to get back into modular synthesizers"
PLEASE DO!
(I'm building one too :)
You're a genius; both of the engineering and comedic variety. Subscribed sir
When can I preorder the Engineer Bathwater™?
Im a mech eng so i understand very little about all this electro stuff, so i use your videos as nerd lullabies instead. Never slept better.
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
On a personal preference note, I don't usually like high priced builds without a specific purpose. This was somehow an exception and very enjoyable - perhaps because promoting open standards is dear to my heart. So thank you for this, please carry on.
"it's kind of a trough, for humans"
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.
Oh, Invoker's voice. Sometimes I forget you play some Dotes. Hope you like the animated series
Those standardized enclosures are awesome. I will have to keep them in mind for projects.
God I miss your humor, my friend. I really enjoy when you upload.
This is all exceptionaly impressive. Lots of new techniques, cool equipment and strategies. Bonus points for torx fasteners. Thank you for showing! You should really start a company around your skillset if you haven't already. You would probably do very well, and over time that position would allow you to make even stronger content and establish better relationships with various larger companies. Low and medium volume production is quite different from single projects like this, but I think you have the right kind of personality to be able to optimize it to be profitable while maintaining high quality. This channel would give you the necessary marketing. Kind of what Doug DeMuro did with his "cars and bids" site/business. Regardless, thanks again and good luck!
People like him and ben krasnow always make me feel incredibly dumb.
I couldnt even follow crudely how this thing works.
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!
‚..one has to resist the urge to eat that yellow snow‘. -> Zappa spotted
wtf ... I spent 30 mins watching something I can barely understand ... hat off to your dedication mate :D this is a lot of work
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.
In the software section I could not help but think about machine learning practices with the polynomial fit that was implemented. I would recommend reading about overfitting and underfitting. But also the fixes for that: testing and validation data sets and cross-validation. This would give some insight in whether the numpy fit was actually any good in explaining the variance in the data, without being too sensitive to this data.
Finally a New Video !! Keep up the Awesome work !!!
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!
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
Cool to see such old school Pirate Party card. Greetings from Czech Pirate :)
I always learn something new with every new reps video
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.
An astoundingly ambitious project and build. Very impressive.
10:13 cracked me up!!! I was not prepered..! xD
I have tried that; Hurts nearly as mush as stepping on a logo! ]:-)
Technical, Hilarious, Fun, Informative, Spicy best Tech channel I have come across.
Better not use the "tub" solder paste servings. They dry out much quicker than a hobbiest can use them up.
I buy the smaller syringe ones. Even then only 1 or 2 at a time and keep them in the fridge. I only really use them with copious additional flux for hand soldering TSSOPs. I really should start getting to grips with BGSa now.
I think this is my 6th time coming back to this video and it still looks like wizardry, brilliant work Marco
The utmost level of reverse engineering. "Reps-lication"
30:50 "Reps-licate" -- very nice. Smooth and subtle. :)
@Peter Mortensen 30:50
Reichelt is a very dangerous place!
Never ordered so much stuff I don't really need.
Pfff, not comparable to AliExpress...
you can use the fpga like a DSP and program your signal processing function in hardware. That will get you plenty of speed to do the processing as long as you have enough cells.
“Expect intense satisfaction” .. noted
"Early bird entry" 😁 Early bird may get the worm, but the second mouse always gets the cheese. 🤣
Just had to.
Great video! Halfway through I realized the product wasn't even near to what I thought you were making, but I still enjoyed it. 👍
I am too stupid for this
Oh man. Everything except the 7.1V divider and amplifier block flies above my head. I have to ask my teacher about that LTZ1000A circuit because I can’t even begin to wrap my head around it.
I got to see some industrial instrument circuits in my internship, but this is a completely different level of precision.
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?
probably for them to not get stolen xd
are they agilent ?
Are there new qualifications? In the past it all seemed to be based on international ludicrous tax laws on gifts (USA included) and prizes. So only countries that aren't total assho' could be involved. Then import duty and sales tax laws. Essentially if you have a Keysight office in your country then the device could be imported from Malaysia or wherever to there at no cost and then sent on to the winner with no tax/duty burden. Except USA which has a bizzarre gift tax.
I would 100% watch any modular or semi-modular synth videos you want to make.
10:17 Hurt my soul. I don't care if it's not real.
Hi. I should go on about how crazy-cool it was to do vapour phase soldering in your kitchen, but I'm too busy laughing at the 'sketch part' of the presentation (standing on the upturned 555 - showing my age here - and toppling a board); that was absolutely hilarious! :-D
"get back into modular synthesizers" when did you leave? and why?
Amazing! Great job!
And thanks for the hint with Grafana. As i recently build a sensor data acquisition systems that logs over network into a RAM buffered SQLite database, I will give it a try.
Hopefully it can take advantage of selecting data from the tables instead of bulk loading every ASCII line tokenized via string-to-float into memory. I find those CSV files annoyingly slow to handle ;)