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JLCPCB Invites You to Try Free 6-8 Layer PCB Prototyping

(Sponsored) magic9 6855 47
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • Sometimes turning your PCB designs into reality can be costly, especially when dealing with high-layer PCBs. However, at JLCPCB, we provide an economical solution - a once-a-month opportunity for every customer to partake in 6-8 layer PCB prototyping at no cost, and now we sincerely invite you to come and experience it with us.

    *JLCPCB also offers a special price of $2 for 1-8 layer FR-4 PCBs (50mm*50mm, 5 pieces) to alleviate the cost burden during project development, enabling innovative ideas to flourish under more favorable conditions. To save more, sign up on JLCPCB official website and get up to $54 off register coupons.


    How to Experience Monthly Free 6-8 Layer PCB Prototyping

    To enjoy the once-a-month free prototyping, your PCB order needs to meet the following criteria:
    • Layer: 6 or 8 layer
    • Size: Within 50mm*50mm
    • Quantity: 5 pieces
    • PCB Specifications: Default settings


    To start, you will need to visit the JLCPCB Coupon Center and claim a $2 coupon for 6-8 layer PCBs. Each month, we release one such coupon in the Coupon Center. Remember to claim it before placing your order.

    JLCPCB website section with discount coupons for PCB, PCBA, and 3D printing orders.


    Next, upload the Gerber file that meets the requirements for free prototyping to the quotation page.

    Screenshot of the PCB ordering process on the JLCPCB website.


    Once uploaded successfully, the pricing section on the right side will display the $2 special price for your order. Click "Save to cart" to proceed to the shopping cart.

    Screenshot of the PCB order form on JLCPCB's website highlighting a promotional offer.


    Click "Secure Checkout" in the cart, then fill in the shipping address and select the appropriate shipping method. If you prefer to pay the bill directly, then click "Continue" to proceed to the payment step.

    Screenshot of JLCPCB shopping cart with promotional price for PCB prototype.

    Screenshot of JLCPCB order summary with payment option.


    During payment, apply the $2 coupon you claimed for 6-8 layer PCBs to avail of the discount. You will see that the product cost has been deducted. (In this case, the total price is deducted from $4.17 to only $1.89) Congratulations! You have successfully secured an opportunity for free 6-8 layer PCB prototyping.

    JLCPCB payment page with coupon promotion for PCBs


    Please note that if you select parameters outside the special offer range, such as choosing a panel as the delivery format, a soldermask color other than green, a thicker outer/inner copper weight than the default setting, or if your PCB size exceeds the 50mm*50mm limit for the special offer and you need more than 5 pieces, regular charges will apply.

    However, even if your order doesn't qualify for the special offer, rest assured that our regular prices are still favorable. We have made some additional discounts for high-layer PCBs:
    • No longer additional charges for via-in-pad for 6-20 layer PCBs.
    • For 6-layer PCBs within 10cm*10cm (5pcs) and within 5cm*5cm (10pcs), the price has been reduced from about $85 to $60-63, and the engineering fee adjusted from over $100 to $60 (board thickness within 2.0, 2.0 not included).


    JLCPCB High Layer High Quality

    With such a discount, can the quality of PCBs be maintained as always? The answer is "Yes"!

    At JLCPCB, we deliver cost-effective PCB manufacturing solutions without compromising on performance, durability, and reliability. Backed by our 5 intelligent production bases, we continuously strive for improvement. Through continuous efforts, we've optimized processes, enhanced PCB production layouts, and implemented a comprehensive automated intelligent management system. These initiatives have yielded promising outcomes, also for 6-8 layer PCBs production. Additionally, as our production volume keeps expanding, we can significantly reduce costs because of the large-scale effect on production, allowing us to pass on the savings to every customer. At JLCPCB, we aim to share our years of PCB manufacturing achievements with engineers and makers, giving them a competitive edge by leveraging our production advantages.

    JLC's Commitment to PCB Manufacturing
    • JLCPCB guarantees full-film PCB manufacturing, without resorting to negative film.
    • Via-checking with four-wire low resistance is ensured for all boards.
    • High-precision LDI is employed on multi-layer boards(including 4-layer PCBs), for a stable and reliable solder mask bridge.

    Before delivering the PCBs to customers, we conduct at least three quality checks:
    • Automated Optical Inspection (AOI)
    • Flying Probe Testing
    • Final Quality Checking piece by piece before shipping


    A Peek of JLCPCB multi-layer PCBs with ENIG & via-in-pad

    Board 1

    Layer: 6 layers
    size: 78.05mm*70.37mm
    Application: modify hardware accelerator board to FPGA development board
    48% of the vias placed on the pads and all BGA packages using vias on the pad (VIA).

    A view of a multilayer printed circuit board with various electronic components.


    Close-up of a multilayer PCB with soldering pads.
    4 times closer to the via-in-pad


    Board 2

    Layer: 6 layers
    size: 100.05mm*135.05mm
    Application: Part of an RF synthesizer for RF signal switching and self-calibration
    26% of the vias placed on pads.


    Circuit board with multiple traces and electronic components on a green background.
    printed circuit board

    Close-up of a green PCB with electronic components marked with letters and numbers.
    4 times closer to the via-in-pad


    Board 3

    Layer: 6 layers
    size: 180.07mm *137.14mm
    Application: wireless terminal
    10% of the vias placed on pads. Via-in-pad on all QFN packages.

    Green printed circuit board with multiple traces and components
    printed circuit board

    Close-up of a multilayer printed circuit board with visible traces and components.
    4 times closer to the via-in-pad


    Currently, JLCPCB's high-layer PCBs range from 1 to 20 layers. Our factory is actively preparing to expand to even higher layer counts, with plans to extend the options up to 32 layers in the near future.

    JLCPCB Coupon Tips You May Need

    1. If you are a new user, register on the JLCPCB website to receive up to $54 off coupons covering PCB, PCBA, and 3D printing:
    2. JLCPCB automatically sends SMT coupons worth up to $24 to all users every month.
    3. Regularly check the JLCPCB Coupon Center for surprise discounts.




    JLCPCB: accelerating your innovation


    JLCPCB is dedicated to accelerating tech innovation. Established in 2006, with over 17 years of continuous improvement, JLC covers every aspect from PCB production and component sourcing to PCB assembly and enclosure fabrication, empowering customers with efficient hardware development and iteration, even with a simple workbench. JLC provides global engineers with rapid and quality deliverables at a favorable budget, accelerating innovation for a world that embraces the wonders of technology.

    Accelerating your innovations

    Logo of JLCPCB in blue color.


    One-stop Rapid Electronic & Mechatronic Manufacturing
    Easy EDA > PCB Prototyping/Small Batch Production > PCB Mass Production > LCSC > Laser Stencil > PCB Assembly > 3D Printing > CNC Machining > FA Mechatronic Parts




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    About Author
    magic9
    Editor
    Offline 
    magic9 wrote 1295 posts with rating 518, helped 20 times. Live in city Kielce. Been with us since 2010 year.
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  • #2 20687196
    Armadon
    Level 17  
    Posts: 197
    Help: 9
    Rate: 209
    Well, there is no denying that JLC is going hard forward without looking back.
    It is true that I would rather pay twice as much for efficiently made tiles in Europe of at least the same quality, but there is no one.
    Because either the price is sky high (eurocircuits, wurth), or the quality and delivery time definitely differ from the expectations of a modern customer at a price that is still several times higher.
  • #3 20687634
    ArturAVS
    Moderator
    Posts: 26305
    Help: 2299
    Rate: 7798
    They make even small series at an affordable price, I ordered a few 100-200 pieces only because I have too much for them, and I didn't want to make them at home. After conversion, it came out to about PLN 1 per board, where domestic producers demanded ~ PLN 70. Both JLCPCB and PCBWay gave amateurs access to factory board technology at an acceptable cost.
  • #4 20687933
    IS
    Level 19  
    Posts: 245
    Help: 16
    Rate: 96
    Let JLCPCB not brag like that anymore. I've ordered a lot from them, sometimes a little, sometimes a lot. For several accounts. And most of the time everything was fine. But recently they messed up. They forgot to make the holes. Of course, a board without vias is only suitable for serious tinkering or the trash. Like it was 5 pcs. laminates themselves, I would not deal with it, but these were tiles with assembly of elements, for another client. The flop came out. And JLCPCB kindly offers me a voucher for 1/3 of the order value. Suggesting that I should buy from them an additional option to check production files for PCB. I'm sorry but the comrades don't have anyone there who watches it and doesn't see that they forgot to make holes? They go there for a masque and if something goes wrong, you will pay extra out of your own pocket. No negotiations go through because "they don't know what I'm talking about", after all, they could give me back only for PCB. I wonder if if I sent them their crap, would they solder these elements back to me. After this issue, I have a definite distance to them and recommend the same to others.
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  • #5 20688565
    ppc
    Level 18  
    Posts: 203
    Help: 28
    Rate: 120
    So you sent the wrong gerberas to production and you have a grudge against them? :D
  • #6 20688624
    IS
    Level 19  
    Posts: 245
    Help: 16
    Rate: 96
    Where did my friend read that? They got the correct drill files. Gerberas too. They didn't make any holes, not even grommets. Then they admitted to the mistake, they offered only 1/3 refund in the form of a coupon because I could buy an option from them in which I could check their (my) production files myself if they would do it right. It's a pity that there is no option to check how their production is going at the factory ...
  • #7 20688772
    czareqpl
    Level 33  
    Posts: 1955
    Help: 196
    Rate: 580
    IS wrote:
    They got the correct drill files. Gerberas too. They didn't make any holes, not even grommets. Then they admitted they were wrong


    Well, they made a friend into a nice circus. If I was treated like this, I would threaten to publish correspondence under every YT video that has their sponsorship. There is no point in dealing with such entities. From a legal point of view, you are not defaming the company by telling the truth.

    I personally had no problems with orders, but I ordered a maximum of 4-layer plates with gilding.
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  • #8 20688882
    IS
    Level 19  
    Posts: 245
    Help: 16
    Rate: 96
    I actually threatened it and it didn't work. "We don't have your coat, what are you going to do to us?" I don't have time to dig with them. Fortunately, it was a small order, less than PLN 1,000, the bad taste remained ... I also met with corrections on the boards in the form of cutting short circuits and varnishing in a color very similar to the solder mask, often invisible without a magnifying glass.
  • #9 20691864
    Tadeo29
    Level 18  
    Posts: 256
    Help: 25
    Rate: 77
    However, a few years ago I made my first order with them for 10 simple tiles.
    It was my first order of this type in my life. I did the gerberas wrong because I had no experience yet and although the machine accepted it, then the man wrote an e-mail asking for confirmation, because he noticed that according to him there were no paths. Thanks to this, there were no surprises when soldering the elements.
  • #10 20692207
    austriackimalarz
    Level 26  
    Posts: 996
    Help: 83
    Rate: 266
    IS wrote:
    Where did my friend read that? They got the correct drill files. Gerberas too. They didn't make any holes, not even grommets.

    Nonsense.
    How many times have I ordered 5/10 tiles from them, and received a dozen of them, because some of them did not pass quality control, even though I did not notice any problem on them. There's no chance they let you kick the tiles. Can you send me the file you sent them and the order number?
    ArturAVS wrote:
    Both JLCPCB and PCBWay gave amateurs access to factory board technology at an acceptable cost.

    Crazy, right? A dozen or so years ago, two-layer tiles were paid for as gold with the implementation time counted in weeks, and here 8-layer tiles are given away for free, and a simple Kowalski has access to even 20-layer tiles.
  • #11 20692282
    Janusz_kk
    Level 39  
    Posts: 5828
    Help: 224
    Rate: 1465
    austriackimalarz wrote:
    Just a dozen or so years ago, double-layer tiles were priced like gold, with delivery time counted in weeks,

    But it's still the case, the standard terms are 3 weeks and for two you have to pay extra, not to mention the prices, unless you hit a promotion, it's a little better.
  • #12 20692593
    Piottr242
    Level 23  
    Posts: 780
    Help: 36
    Rate: 300
    I have been making tiles with them since 2019 and only once they did not pay attention to my mistake (overlapping paths) and the tiles went to the trash. Generally, I'm not complaining, the possibility of making a multilayer board with vias is something that was unthinkable 10 years ago.
    Seriously, this is a technological revolution.
  • #13 20693591
    IS
    Level 19  
    Posts: 245
    Help: 16
    Rate: 96
    >>20692207
    A colleague deigns to joke that I should send him a commercial project.
    Yes, JLPCBC can verify and even correct the error. This time they did it and they admitted it.
    What has happened to this forum? You trust a company in Asia more than a countryman who points out that things are not always colorful.
  • #14 20693608
    austriackimalarz
    Level 26  
    Posts: 996
    Help: 83
    Rate: 266
    IS wrote:
    A colleague deigns to joke that I should send him a commercial project.

    You didn't mention before that it's a commercial project.
    IS wrote:
    This time they did it and they admitted it.

    Then I'd like to see that confession.
    IS wrote:
    What has happened to this forum? You trust a company in Asia more than a countryman who points out that things are not always colorful.

    And do you trust more the company from which you and your friends have been ordering exemplary tiles for at least several years (and you act as an intermediary in ordering many thousands of pieces), or a random person from the Internet who cries that the Chinese cheated him and save him?
  • #16 20694435
    zuhjk
    Level 22  
    Posts: 500
    Help: 28
    Rate: 28
    IS wrote:
    Let JLCPCB not brag like that anymore. I've ordered a lot from them, sometimes a little, sometimes a lot. For several accounts. And most of the time everything was fine. But recently they messed up. They forgot to make the holes. Of course, a board without vias is only suitable for serious tinkering or the trash. Like it was 5 pcs. laminates themselves, I would not deal with it, but these were tiles with assembly of elements, for another client. The flop came out. And JLCPCB kindly offers me a voucher for 1/3 of the order value. Suggesting that I should buy from them an additional option to check production files for PCB. I'm sorry but the comrades don't have anyone there who watches it and doesn't see that they forgot to make holes? They go there for a masque and if something goes wrong, you will pay extra out of your own pocket. No negotiations go through because "they don't know what I'm talking about", after all, they could give me back only for PCB. I wonder if if I sent them their crap, would they solder these elements back to me. After this issue, I have a definite distance to them and recommend the same to others.

    There's something up. I got the value of the resistors wrong in the plates. Suddenly there are several values and they got confused. All in all, it's not a big problem to solder, some may stay. Capacitors came out and ICs are fine. It's a bit strange, I chose the elements from their warehouse myself. But it's still the best thing about this company.
  • #17 20695873
    Atos30
    Level 14  
    Posts: 79
    Help: 2
    Rate: 20
    I've been ordering from JLCPCB since 2018, there hasn't been any error in my tiles yet, the only thing is that the logo print could be a bit sticky, it didn't always come out the same.
  • #18 20696494
    victoriii
    Level 19  
    Posts: 322
    Help: 11
    Rate: 43
    gkalfail wrote:
    >>20687196

    Or maybe someone tried in:
    https://aisler.net/?utm_campaign=bitluni_23

    they look like European JLCPCB.

    Pricing: https://community.aisler.net/t/our-simple-pricing/102


    I uploaded my latest project to this Aisler and they come out >42 euros with shipping and at JLC I paid 5 or 6 pounds, admittedly with HAL instead of ENIG, but that doesn't bother me. So it's not an alternative at least in terms of price, unless someone needs it tomorrow.
    I admit that sometimes I am worried that JLC (and China) practically monopolized my tiles, but they are usually the cheapest. Only some time ago I discovered that the 2L Elecrow plates are slightly cheaper (around 50 pence on the whole order).
  • #19 20696590
    krisRaba
    Level 31  
    Posts: 1999
    Help: 94
    Rate: 434
    From my recent experience with JLC, they seem to have caught enough customers to form a stream of orders by adding costs wherever they go.
    In the past, for example, all colors were at the same price, now you pay different amounts for different colors. They used to do simple panelization for free on their own, now they charge a lot of engineering fee.
    In general, whatever you choose outside the standard, you have to watch the calculator closely, because something jumps in here and there ;) It is known that it is still much cheaper than in eurocircuits or others, but you can see the trend of adding costs everywhere...

    As for errors, I've already ordered a lot of tiles there and there were rather some ambiguities and questions about how to do it.
    Something they actually screwed up once was the lack of Vcut, so it was impossible to break the board out of the technological frame. But since it was a single board and it entered the prototype with the frame, apart from the need to saw off the space for the edge connector in one place, it passed without pain ;)
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  • #20 20696761
    Janusz_kk
    Level 39  
    Posts: 5828
    Help: 224
    Rate: 1465
    krisRaba wrote:
    In my recent experience with JLC, they seem to have caught enough customers to form a stream of orders by adding costs wherever they go.

    It was similar with Allpcb, a few years ago I also started with them, but then they started raising prices and I switched to JLC. If they raise you too high, another cheap company will probably appear, hopefully :)
  • #21 20696833
    victoriii
    Level 19  
    Posts: 322
    Help: 11
    Rate: 43
    I also notice that they limit where they can and add where they can. But is it not a coincidence related to inflation, which is everywhere and the associated price increase as well as the "two-speed economy" - just like the fact that the Chinese government stopped paying extra for shipments.
    Personally, I would very much like an alternative similar in price to appear, but I can hardly see it, because so many years have passed and no other company has even come close to them, not to mention that now for these 5 pounds you can have a 6L plate with dimensions of 50 x 50mm. Everywhere else such a tile costs a small fortune (at least for a hobbyist).
  • #22 20701873
    Armadon
    Level 17  
    Posts: 197
    Help: 9
    Rate: 209
    The fact that I can have a board with covered vias for normal money, which means that I can make vias directly in the BGA pads drastically simplifies the work in more complicated projects.
    And as for the various surcharges, from a technological point of view, any option where a person has to spend additional time is an additional payment, and this is, in my opinion, obvious - salaries in China are also rising, as are all other costs, and the company is there to make money.

    All in all, it surprises me a little that no one in Europe has yet made a competitive company with EU funds, although I suspect that the cost of doing business and bureaucracy is simply too high in our country to offer a similar price ceiling.
  • #23 20701951
    czareqpl
    Level 33  
    Posts: 1955
    Help: 196
    Rate: 580
    Armadon wrote:
    although I suspect that the cost of doing business and bureaucracy is simply too high in our country Add to that the disposal of industrial waste.

  • #24 20702050
    ArturAVS
    Moderator
    Posts: 26305
    Help: 2299
    Rate: 7798
    czareqpl wrote:
    Add to that the disposal of industrial waste. Waste by waste, with a large series production of boards the cost of those made as prototypes for amateurs is a drop in the ocean. Especially since all the production files are given ready-made, so there is no need to handle the designer. Once I had a case that it was pointed out to me via e-mail that I went out with the outline of the board, also sent a screenshot showing the place. I corrected and sent it back, in two weeks a batch of 200 pieces was with me.

  • #25 20702065
    austriackimalarz
    Level 26  
    Posts: 996
    Help: 83
    Rate: 266
    ArturAVS wrote:
    Waste of waste, with large series production of tiles the cost of those made as prototypes for amateurs is a drop in the ocean. That's why wafers up to probably 10x10cm in size are basically made for free. Because what's $2 for 10 tiles? The material would go to the trash anyway, they have to put whole laminate formats through the machines anyway, so at least they'll use what they can. All the more so because we give all the production files already finished so the designer's service is dropped. How it falls off. All files with them are checked by people, for this from gerber you need to prepare the code for the machines. There are services that additionally require a "human hand" at them, for which they charge extra.


    ArturAVS wrote:

  • #26 20702074
    ArturAVS
    Moderator
    Posts: 26305
    Help: 2299
    Rate: 7798
    austriackimalarz wrote:
    All files at their place are checked by people, for this from gerber you need to prepare the code for the machines. As the design is well done, human intervention is not needed. Checked are gerbers for machines, and in this case design software does it automatically, for example, such KiCad.

  • #27 20704159
    gkalfail
    Level 13  
    Posts: 99
    Help: 2
    Rate: 29
    victoriii wrote:
    gkalfail wrote:
    >>20687196

    Or maybe someone tried in:
    https://aisler.net/?utm_campaign=bitluni_23

    they look like European JLCPCB.

    Pricing: https://community.aisler.net/t/our-simple-pricing/102


    I uploaded my latest project to this Aisler and they come out >42 euros with shipping and at JLC I paid 5 or 6 pounds, admittedly with HAL instead of ENIG, but that doesn't bother me. So it's not an alternative at least in terms of price, unless someone needs it tomorrow.
    I admit that sometimes I am worried that JLC (and China) practically monopolized my tiles, but they are usually the cheapest. Only some time ago I discovered that the 2L Elecrow plates are slightly cheaper (around 50 pence on the whole order).


    And this is interesting - so Europe is still expensive. At first glance, it seemed ok. Requiring the same price as the Chinese is an exaggeration, but it would be appropriate to fit in x2, maybe x3.
  • #28 20704167
    austriackimalarz
    Level 26  
    Posts: 996
    Help: 83
    Rate: 266
    Regarding Europe, I once sent an inquiry to the Czech company WEGSTR. I have it close, I could pick up the tile myself, I needed one piece for yesterday but it was quite large and had a lot of thin paths. Absolutely impossible to do at home. They sang a number to me as if the plate was to be sculpted by Michelangelo himself, and the price was probably his resurrection. China came out cheaper and the fastest shipment they had :)
  • #29 20704415
    Janusz_kk
    Level 39  
    Posts: 5828
    Help: 224
    Rate: 1465
    austriackimalarz wrote:
    China came out cheaper and the fastest shipment they had

    And it's all about cheap tiles in Europe :) in Poland, too, unfortunately, we are doomed to China :(
  • #30 20704440
    victoriii
    Level 19  
    Posts: 322
    Help: 11
    Rate: 43
    I also had a situation once when I needed it already and I used JLC and a courier, I don't remember what it was, but I had the tiles in 3 days and without breaking the bank, if I wanted 2 - 3 days from the UK, the price would be three digits (from 200 - 300 pounds).
    That's why I used to wonder that I have stocks of semiconductors and hobby components for years, if not decades, but if the war with Taiwan started and the plates from China ended, I suspect that the prices (already high) would jump up so much that it would stop I can afford hobby projects using PCB and I would have to do gardening or painting.

FAQ

TL;DR: 50×50 mm i 5 sztuk to kluczowy limit, a użytkownicy mówią wprost: „to rewolucja technologiczna”. Ten FAQ pomaga hobbystom i małym seriom zrozumieć, jak działa darmowy kupon JLCPCB 6–8 warstw, kiedy wpadają dopłaty i jak ograniczyć ryzyko błędów produkcyjnych. [#20692593]

Dlaczego to ważne: Wątek pokazuje jednocześnie wyjątkowo niski próg wejścia do płytek 4L/6L/8L oraz realne ryzyka: dopłaty, błędy produkcji, spory reklamacyjne i słabe alternatywy cenowe w Europie.

Producent / opcja Cena z wątku Jakość / uwagi Czas / dostępność
JLCPCB ok. 5–6 GBP za projekt użytkownika; promo 6L 50×50 mm za 2 USD kuponem zwykle dobra, ale pojawiają się reklamacje bywa nawet 3 dni kurierem
Aisler >42 EUR z wysyłką za ten sam projekt europejska alternatywa, lecz dużo droższa opłacalna głównie przy pilnym terminie
Lokalni producenci UE od ok. 70 PLN za sztukę lub bardzo wysokie oferty lepsza bliskość prawna, słabsza cena często 2–3 tygodnie
PCBWay porównywalnie otworzył amatorom dostęp do fabrycznych PCB pozytywnie wspominany jako alternatywa brak twardych danych cenowych
Elecrow 2L nieco tańszy od JLC o ok. 0,50 GBP na całym zamówieniu dotyczy prostych 2-warstwowych płytek brak dodatkowych danych

Kluczowy wniosek: JLCPCB wygrywa wątkiem na relacji cena–możliwości, szczególnie dla wielowarstwowych prototypów. Oszczędność jest realna, ale warto samodzielnie sprawdzać Gerbery i pliki wierceń, bo nawet rzadki błąd może zniszczyć cały projekt. [#20696494]

Quick Facts

  • Oferta promocyjna z pierwszego posta dotyczy 6 lub 8 warstw, maks. 50×50 mm, 5 sztuk i wyłącznie ustawień domyślnych; kupon ma wartość 2 USD i pojawia się raz w miesiącu. [#20686189]
  • Przy płatności pokazano przykład spadku kosztu z 4,17 USD do 1,89 USD po użyciu kuponu 2 USD na płytkę 6–8 warstw. [#20686189]
  • JLCPCB deklarowało wtedy brak dopłaty za via-in-pad dla 6–20 warstw oraz obniżkę ceny 6-warstwowych PCB 10×10 cm, 5 szt. z ok. 85 USD do 60–63 USD. [#20686189]
  • Użytkownicy podają skrajnie różne porównania rynku: ok. 1 PLN za płytkę przy serii 100–200 szt. w JLCPCB versus ok. 70 PLN u krajowego producenta. [#20687634]
  • W praktyce płatności indywidualne w styczniu 2024 najczęściej rozwiązywano przez PayPal, a przy problemach z przewalutowaniem sugerowano konto walutowe lub Revolut. [#20926034]

1. Jak odebrać i użyć miesięczny kupon JLCPCB na darmowe prototypowanie PCB 6–8 warstw dla płytki 50×50 mm?

Trzeba najpierw odebrać kupon 2 USD w Coupon Center, a dopiero potem złożyć zamówienie. 1. Odbierz miesięczny kupon na PCB 6–8 warstw. 2. Wgraj Gerbery zgodne z limitem 50×50 mm, 5 sztuk i ustawieniami domyślnymi. 3. W koszyku lub przy płatności zastosuj kupon, aby obniżyć koszt płytki. W przykładzie z posta cena spadła z 4,17 USD do 1,89 USD, więc „darmowe” dotyczy samej płytki, nie całej wysyłki. [#20686189]

2. Jakie są dokładne limity i ustawienia domyślne wymagane do skorzystania z darmowej oferty JLCPCB na PCB 6- lub 8-warstwowe?

Oferta wymaga bardzo sztywnych parametrów: 6 albo 8 warstw, maksymalnie 50×50 mm, dokładnie 5 sztuk i wyłącznie ustawień domyślnych. Jeśli zmienisz kolor soldermaski, miedź, format dostawy lub ilość, wypadasz z promocji. To nie jest rabat na dowolne multilayery, tylko na mały, standardowy prototyp. Kupon jest publikowany raz w miesiącu i trzeba go odebrać przed złożeniem zamówienia. [#20686189]

3. Dlaczego JLCPCB zaczyna naliczać normalne stawki, gdy wybieram panelizację, niezieloną soldermaskę, grubszą miedź, większe wymiary albo więcej niż 5 sztuk?

Bo wtedy zamówienie przestaje mieścić się w promocyjnym standardzie i trafia do normalnej wyceny. W pierwszym poście wskazano wprost, że panel jako format dostawy, kolor inny niż zielony, większa grubość miedzi, rozmiar ponad 50×50 mm lub ilość ponad 5 sztuk uruchamiają zwykłe opłaty. Użytkownicy później potwierdzali też trend dopłat za opcje niestandardowe i dodatkowe „engineering fee”. [#20696590]

4. Czym jest via-in-pad w projektowaniu PCB i dlaczego ma znaczenie dla obudów BGA i QFN?

„Via-in-pad” jest techniką projektową PCB, która umieszcza przelotkę bezpośrednio w padzie elementu, co oszczędza miejsce i ułatwia wyprowadzenie sygnałów spod gęstych obudów, zwłaszcza BGA oraz QFN. Wątek pokazuje, że ta funkcja mocno upraszcza trudniejsze projekty. Jeden użytkownik podkreślił, że zakryte przelotki i prowadzenie vias w padach BGA „drastycznie upraszczają pracę”, a w przykładach z posta firmowego via-in-pad stosowano nawet we wszystkich obudowach BGA lub QFN. [#20701873]

5. Co oznacza V-cut na panelu PCB i jakie problemy pojawiają się, gdy płytka przychodzi bez V-cut?

„V-cut” jest nacięciem technologicznym w panelu PCB, które osłabia laminat wzdłuż linii podziału, aby płytki dało się łatwo i czysto wyłamać z ramki po produkcji. Gdy V-cut brakuje, oddzielenie płytki od ramy może być niemożliwe bez piłowania. Użytkownik opisał taki przypadek: brak V-cut uniemożliwił wyłamanie płytki z ramki technologicznej i trzeba było ją mechanicznie odcinać przy złączu krawędziowym. [#20696590]

6. Jak JLCPCB wypada na tle PCBWay, Aisler, Eurocircuits, Wurth, Elecrow i lokalnych europejskich producentów pod względem ceny, jakości i terminu?

JLCPCB w tym wątku wygrywa głównie ceną i często także terminem. PCBWay wspomniano jako drugą firmę, która dała amatorom tani dostęp do fabrycznych PCB. Aisler dla jednego projektu wyszedł ponad 42 EUR z wysyłką, gdy JLC kosztował 5–6 GBP. Eurocircuits i Wurth opisano jako drogie, a lokalni producenci jako wielokrotnie drożsi i często wolniejsi. Elecrow 2L bywa minimalnie tańszy od JLC, ale tylko o około 0,50 GBP na całym zamówieniu. [#20696494]

7. Dlaczego jedni użytkownicy piszą, że JLCPCB ręcznie sprawdza Gerbery i dopytuje przed produkcją, a inni twierdzą, że poważne błędy i tak przechodzą?

Bo kontrola wstępna istnieje, ale nie eliminuje wszystkich błędów procesu i nie zastępuje pełnej odpowiedzialności za projekt. Jeden użytkownik dostał e-mail, bo operator zauważył brak ścieżek i poprosił o potwierdzenie. Inny miał wskazany błąd obrysu i poprawił projekt przed produkcją. Równocześnie pojawiły się relacje o braku otworów, złych wartościach elementów i braku V-cut. W praktyce kontrola wychwytuje część niezgodności, lecz nie daje gwarancji, że produkcja lub montaż będą bezbłędne. [#20691864]

8. Co zrobić, jeśli JLCPCB wyprodukuje moją płytkę błędnie, na przykład bez otworów albo z błędami montażu, i oferuje tylko częściowy kupon zwrotu?

Trzeba od razu zebrać dowody i reklamować konkretny błąd, nie ogólne niezadowolenie. Zachowaj numer zamówienia, pliki Gerber i drill, zdjęcia wad oraz korespondencję, zwłaszcza jeśli producent przyznał się do pomyłki. W wątku opisano przypadek płytek bez otworów i propozycji kuponu na około 1/3 wartości zamówienia, co użytkownik uznał za niewystarczające. Jeśli sprawa dotyczy montażu dla klienta końcowego, warto od razu oszacować koszt szkody i zdecydować, czy kupon ma sens biznesowy. [#20688624]

9. Jak samodzielnie zweryfikować pliki Gerber i drill przed wysłaniem do JLCPCB, żeby wcześniej wykryć brakujące otwory, nakładające się ścieżki albo błędy obrysu?

Najlepiej obejrzeć eksport tak, jak zobaczy go fabryka, a nie tylko w edytorze PCB. 1. Otwórz osobno Gerbery i pliki wierceń i sprawdź, czy każda warstwa ma otwory, obrys i opisy we właściwym miejscu. 2. Zwróć uwagę na nakładające się ścieżki, brak przelotek i wyjście obrysu poza płytkę. 3. Porównaj podgląd zamówienia z tym, co eksportuje CAD. Wątek podaje trzy realne awarie: brak otworów, nałożone ścieżki i błąd obrysu wykryty dopiero po e-mailu z fabryki. [#20702050]

10. Które cechy PCB w JLCPCB najczęściej dodają opłaty engineering fee albo dopłaty poza standardową opcją prototypową?

Najczęściej dopłaty pojawiają się przy wszystkim, co wykracza poza prosty standard. Użytkownicy wymienili płatną panelizację, różne ceny kolorów soldermaski, wysokie engineering fee za prosty panel oraz dopłaty za opcje wymagające dodatkowej ingerencji. Pierwszy post firmy dodaje do tej listy niestandardowy kolor, grubszą miedź, większy rozmiar niż 50×50 mm i ilość ponad 5 sztuk. W skrócie: im mniej standardowy projekt, tym uważniej trzeba patrzeć na kalkulator. [#20696590]

11. Czym różnią się wykończenia ENIG i HAL dla prototypowych PCB i kiedy warto dopłacić do ENIG?

W tym wątku ENIG pojawia się jako droższa opcja, a HAL jako tańszy wariant akceptowalny dla wielu prototypów. Jeden użytkownik porównał ten sam projekt: w Aisler koszt przekroczył 42 EUR z wysyłką, a w JLC zapłacił 5–6 GBP, przy czym wybrał HAL zamiast ENIG i uznał, że mu to nie przeszkadza. W praktyce z wątku wynika prosta reguła: jeśli liczysz koszt prototypu, HAL zwykle wystarcza; jeśli zależy Ci na bardziej zaawansowanej płytce, ENIG bywa wybierany mimo dopłaty. [#20696494]

12. Dlaczego europejskie fabryki PCB są często dużo droższe od JLCPCB, nawet dla prostych płytek prototypowych?

Użytkownicy wskazują trzy powody: wyższe koszty pracy, wyższe koszty prowadzenia produkcji i mniejszą agresję cenową przy prototypach. W wątku padają porównania rzędu 1 PLN za płytkę przy serii 100–200 sztuk w JLC versus około 70 PLN u krajowego producenta, a także przykłady prostych płytek wycenianych w Europie na dziesiątki euro lub z terminem 2–3 tygodni. Część rozmówców dodaje też koszty biurokracji, transportu, odpadów przemysłowych i niższy efekt skali niż w Chinach. [#20687634]

13. Czym jest LDI w produkcji wielowarstwowych PCB i jak poprawia dokładność soldermaski oraz jakość płytki?

„LDI” jest metodą bezpośredniego naświetlania obrazu w produkcji PCB, która tworzy wzór bez klasycznej kliszy, zwiększa precyzję odwzorowania i stabilność mostków soldermaski na gęstych płytkach wielowarstwowych. W poście firmowym JLCPCB wskazano, że LDI stosuje się na płytkach wielowarstwowych, także 4-warstwowych, aby uzyskać stabilny i niezawodny mostek soldermaski. To ważne zwłaszcza przy drobnych rastrach i gęstym prowadzeniu ścieżek. [#20686189]

14. Jaki był najlepszy sposób płacenia JLCPCB jako osoba prywatna w 2024 roku, jeśli chciałem uniknąć słabego kursu USD, problemów z kartą kredytową albo opóźnień PayPal?

W styczniu 2024 najczęściej polecano PayPal albo kartę walutową z sensownym przewalutowaniem, na przykład przez Revolut. Pytający zgłaszał, że karta debetowa do konta USD mu nie działała i że system oczekiwał karty kredytowej. Inni odpowiadali, że od dawna płacą przez PayPal bez problemu, choć zdarzają się poślizgi przy zasileniu salda. Najpraktyczniejszy wniosek z wątku jest taki: jako osoba prywatna trzymaj awaryjnie PayPal, ale przewalutowanie rozwiązuj osobno. [#20926139]

15. Jeśli chińska produkcja PCB stałaby się niedostępna, jakie realistyczne alternatywy mają hobbyści robiący płytki 4-warstwowe, układy QFN albo BGA?

Realne alternatywy są słabe: droższe firmy europejskie, własna obróbka prostych płytek albo zejście do mniej wymagających obudów. Użytkownicy wprost piszą, że bez Chin wróciliby do frezowania lub ręcznego wykonywania prostszych PCB, ale skończyłyby się wygodne projekty typu BGA64 na 4 warstwach oraz gęste QFN. Europejskie odpowiedniki istnieją, lecz bywają wielokrotnie droższe. Dla hobbysty oznacza to zwykle kompromis: płacić dużo więcej albo upraszczać projekt i technologię wykonania. [#20705825]
Summary generated by AI based on the discussion content.
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