Dang. This is seriously cool. Watching PCBs made at scale is always like engineering meets witchcraft. Pure beauty.

So cool to see you back in the factories in China, Scotty! I love how you take us through this inside look at the world of our oddball projects on the other side of the mirror. Big thanks to JLCPCB for their incredible support of the community of makers, too. Thanks again for taking the time to grab me and say hi at DC!!!

The scale these guys have grown to in what feels like a short amount of time is incredible. It’s good to get a classic Strange Parts video again. It’s been too long.

Thanks Scotty and JLC for this factory tour! As an electronics design engineer I really appreciate seeing what happens beyond the website.

I was hoping you would have covered the process of putting the copper on the polyamide sheets. I have developed hardware and processes for this multi step process. First the polyamide is treated with plasma to increase adhesion, then chrome, nickel or titanium is sputtered onto the polyamide as an adhesion layer, then copper is sputtered onto the film. Once a thin layer of copper is on the polyamide they use an electroplating process to make it the desired thickness.

So glad to see the amazing video came out.🥰 Scotty spent several days in JLCPCB factories and was walking through many JLCPCB production lines like SMT Assembly, 3D Printing and CNC machining. Thanks for bringing such wonderful content! 💙 Keep up the good work!💪

It's amazing how all these stages work together so well.

Super pleased to see you back in China doing this type of content. So glad you seem to be recovering well. Many thanks for the content you create.

I'm so impressed by the incredible access and trust you've built with these companies, and how you genuinely discuss the intricate work involved in manufacturing components of tools/tech we use everyday!

so great to see you back at factory tours. looking forward to see more videos like this

Some seriously skilled but monotonous work involved, we should never forget the human effort required in manufacture and thank them 🙏

Huge respect to those ppl in factories like this who can do one thing over and over for days and so consistently ... I would not survive a single day :D

Welcome back to China! Very happy to see you traveling again. I live in Zhuhai, and after I moved here I realized that 25% of the world's PCB production comes from this city, and where I lived in Brazil there was only one small factory.

I'm retired from automation and controls, mostly Rockwell Automation. I've been in a lot of manufacturing plants and this is pretty amazing. The factory is incredible clean and well kept. I hate to say it but China has got this stuff down to an art. This is why most American companies farm their stuff out to China. Thanks for the inside look!

Great job, Scotty! These kinds of videos really help to see how much work goes into the stuff we all take for granted.

It's amazing to watch how circuit boards are still made similar to the ones we made back in 1971. We where making circuit boards for military guidance systems. We made one that was 17 layers and only just over1/8" thick. The processes were the same but now more automated and very clean compared to the place I worked. In the 70's there were many dangerous chemicals in open vats and very few safety protection or procedures. Thanks for showing the new flexible board manufacturing!

Fantastic tour! Huge step-up in production value in this one; it's really evident how much time and effort went into planning and shooting each segment.

I am incredibly happy to see you out and about again Scotty. This has been incredibly fun and informative to see!

Flexible boards are amazing for tons of uses I would love to use ones for a project I have been thinking about

Fun fact: Flexible PCBs have been around for a long time. They were used in the dashboard of the 1970 Hillman Avenger (Plymouth Cricket) to reduce assembly complexity.

well done on the invite to the factory - I studied electronics in the late 1980s - and things have come a long way

I am glad to see you make another factory tour video. I loved the ones you made in the past and have missed them since. Thank for keeping on making them and that you had recovered from your injury to keep doing them too. :)

Big thanks to JLCPCB for letting us see how these are made. :)

One of the greatest on UKposts tech! Glad to have more from you strange parts

Wow! X L Ent! This was extremely thorough and detailed, and I couldn't find any "mistakes". This video is showing a very advanced, precision, giant volume operation which is hard to comprehend all at once. Having been to many, many operations making PCBs in many countries, these guys seem to have not only made it to "World Class", but to the "Top". Congratulations to JLCPCB! I'm a retired EE with over 40 years of circuit board design and manufacturing experience, and all I can say is that this should be a video course for all EE students. I started working with Chinese contract manufacturers and vendors in 2008 and there were many issues and challenges, especially when it came to PCBs and SMT PCBAs. We did business with the largest manufacturer of PCBs and their raw materials subsidiary, who at the time was making the bulk "pre-preg" components for 40% of the world. They were poor quality and unreliable, at best, and quite untrustworthy. This caused me and and several co-workers a lot of travel to China to audit and correct them. As shown in this video, things have changed exponentially! Again, congratulations to JLCPCB!!

Long time watcher and appreciator of this channels content. The new patreon mentions in videos are a fantastic innovation. I've found myself looking out for them as little easter eggs. Lovely to see all the ways in which you innovate your channel!

Love your factory tours with your background and actual Chinese knowledge, it makes them a lot better than most others.

This is such an awesome process, and you explained it super well!

As an Engineer at a U.S. flex manufacturer this video is very well done and accurate to current manufacturing techniques. Good job!

Fantastic seeing you back in China Scotty. Absolutely love this behind the manufacturing scenes content.

Great video, Scotty. Love seeing the process behind all of this. Won't lie.. seeing you back "in the field" has my heart very full. Hope you're doing great!

You have an amazing attitude and aptitude for understanding all these highly complex processes! I love watching your videos and I'm so excited that you are back with more energy than ever! Keep it going Scotty!!

Really excellent factory video walkthrough. Your explanations are superb. Scheduling this into and through the factory would be very interesting - especially considering that the initial worksheets can hold multiple different boards - so it's not just a matter of pushing a single pattern through the process from end to end, it's what can logically be combined on one board to optimise the throughput and client quantities. Well done with this. Looking forward to the next one.

This reminds me of your flexible circuit board for the iPhone 7 headphone jack. Glad this video goes more in depth of how "origami" boards are manufactured. Congrats again Scotty.

Thanks for putting this out Scotty! I have been working on flex PCBs off late. We are developing an optimization in the process and this video gave so much clarity on the whole process that goes into the whole flex-PCB assembly. Keep them coming!

Does Scotty understand Chinese? If not you're doing a great job shaking your head acting like you do 😂 I love your videos man I'm glad you're to see your doing well and seem much better since the concussion.

This is the class is strange parts content I love!! Thank you Scotty and thank you JLC PCB!!!

I've been following your channel for a while now, and your videos are always incredibly eye-opening, insightful, and super interesting . The way you take us through the factories in China, showcasing the intricate processes involved in making electronics and high-tech equipment, is both educational and fascinating. But what I appreciate the most is the human element you bring into your videos...the small glimpses of the people making these products. In a world where political tensions and government narratives often overshadow the lives of everyday people, your videos serve as a refreshing reminder, for me at least, that we're all just regular folks trying to make a living, regardless of where we're from.

Scotty Im so happy to see you doing factory tours again! ❤great video

awesome to see the processes behind these huge FPCB factories - I'm surprised there's so much manual work involved. Thanks for the vid!

did anyone else notice at 4:59 emorgoncy stop :)

I love these factory tours, please keep doing them!

People don't think about what goes into making the electronics they use. I knew it was a lot but this is SO many more steps than i thought.

Good to see flex pcb's are finally becoming more affordable for the consumer opposed to years back. Used to do lens aperature repair years back and being able to get replacements from China saved a ton of e-waste where manufacturers refused to release parts.

Keep up the videos Scotty! Truly value your well explained explanation into the electronic industries manufacturing processes… Thanks JLCPCB too, geat to see the evolution of the processes involved. Having just watched this, and then revisiting your older rigid JLCPCB factory tour from 5 years ago it is great to see both existing and new technology /process featured. Perhaps a historical evolution angle possible from another factory. Always fascinating to learn about the heritage of where the industry’s come from and how processes have changed in the sector 🙂

That component picking and placing was amazing. I never thought @JLCPCB was this much of biggest factory will do our very small job or projects which are under $2. Unbelievable 😍

More, more, more! Amazing! Edited well, explained well, I really appreciate you!

Amazing! Would love to see more about how the optical inspection works and what kind of algorithms are used.

Such a great video. So pleased you are back doing these types of 'how it's made'. I'd love to see a video on how the machines that make these come together. They are so unique, from laser exposure to robotic baths. Who makes and designs these?! Ive used JLPCB recently and was really impressed with the service and speed of turn around. About a week to have it sent to Australia.

Always blowing it out of the park! An undepth look we wouldn't get anywhere else. Scotty's vids are always a blast.

Love to see you doing these videos again, great stuff!

I am amazed on unique knowledge and engineering experience of the people who designed these machines might have and also the people who operate them for various purpose

This was a great video and reaffirms why I use JLC. Would be great if we could see their 3D printing and machining facility too!

I absolutely love these insights into the different factory processes

What amazing technologies are being used here. Absolutely mind blowing

It's so good to see you full of energy and feeling good! Also it's funny to see you trying to not jump from excitement :D And man... those machines are soooooo cooooool. And whole crew is very professional and careful even with electroplating that I never saw as precise process. Danm... I'm editing this comment so many times... But I just want to know if anyone feel wired knowing some of the parts they making. Besides obvious wireless charger pads, printer cartridge heads, LED tracks, screen connectors.

Who's make the machine?

Always love seeing your videos, Scotty! Hope you're doing well!

Such awesome tech! Love your videos, Scotty. The best out there!

24:40 I recognize those black pcbs! They are the mainboard of the Picofly which is used to hack the Nintendo Switch, I'm pretty sure that exact version is the one for the Switch v1 and v2. I'm surprised they were willing to show the assembly process of that one in particular because of Nintendo and their lawyers, I guess that guy didn't know what it was used for lol

20:05 I hope that the printer doesn't say "out of blue, replace the whole cartage" randomly unlike some consumer printers *cough HP

This was very well done. It is amazing to see these manufacturers. Thank you.

some insane machines in there. just incredible, and really seems like they have dedicated workers as well, takes alot of effort to keep checking all of those.

The alignment system on the lasers is fantastic... the SMT line is fantastic... but what i really REALLY want. Is that auto tape cutter at 25:17

Very interesting and well made video looking forward to the next one! One thing that got me wondered: 14:18 you put your finger in the light curtain sensor, but the machine does not stop and you are looking at the cutting area without eye protection. Are those lasers not that powerful?

hope you are all better, love watching your content always worth the wait :) keep up the excellent work

Always love your videos Scotty! Thanks for the tour of JLC!

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So glad you're back bro.... Love your videos

Thanks!! this was a nice Saturday morning treat to watch. China's production of just about anything is amazing.

It is great to see you back on top line! I very much enjoy your videos and I hope you continue on in good health!

Fascinating stuff! I do love these factory tours.

Good to see you on the move again! Thank you for the video! Anthony

As an American I think drying outside is highly underrated. Not great for most of the year in Oregon but the times I have done it the clothes are so nice and fresh. I love the idea of a heat pump dryer.

Glade to have you back. This is what I followed you for from the beginning. Amazing explanation.

Excellent presentation, learned something new about the process! Keep up the good work.

I love the factory tours and explanations. Thank you!

I'm happy to see you up and about again, last of your videos I saw was during Covid! I am already a satisfied and returning customer of JLC and I'm planning for a few SLS 3D printed parts to go with my next electronics order.

Great to see another video! You seem to be doing good which I'm happy to see. Now off to see the video. All the best Scotty!

Really great seeing you back doing this.

I love seeing you all better and making new Videos !

Thanks for the awesome factory tour!

So exciting to see this kind of content again!

The best video content. I’m happy you are back sir

Great to see you out and about in the factories Scotty. Cheers

I love your videos, they are always fascinating to watch! Thanks for the video!

Jlcpcb is amazing. I ordered PC's from them several times. They came out perfect in every way. It's just amazing that little guys like me get access to engineering at such a high level. I loved seeing a part of their factories.

I super grateful that you're back in good Health Scotty!! I was quite concerned after that last video I saw of yours very early on in Covid (maybe?) I'm super happy to see you looking spry and healthy! I sure appreciate your deep dive here today in this awesome factory!! Thank you for the hard work!!

I enjoyed watching this video very much. Thank you for giving us the tour and not putting any background music.

so, so glad you are back, man. i love your channel

His videos are always interesting and detailed so glad he is feeling better

this is the stuff we like to see. glad to see you're doing well!

Pretty interesting. Glad to see you back in action.

This one is on my watch list mate. Great to see you back again!! Hope you are feeling better?

It is crazy how professional level your production is, this reminds me of any other tech documentary ect.. ive seen in past on tv. Respect Scotty!

glad to see you back posting on youtube, I hope you're health have recovered 100%

It's awesome to see you back in China, been following you since the early days of iphone hackery. Keep up the great work!

Thank you for this!!! I always wondered how the flex PCBs are manufactured. Amazing process

Really nice content. And so good to see that you are getting better health wise. Keep it up.

Glad to see you back at it!