Author Topic: JLC PCB Prototype Assembly - Incredibly Cheap  (Read 44537 times)

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Offline thinkfat

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #275 on: December 02, 2020, 07:25:41 am »
Does other manufacturers offer the same cheap assembly service as JLCPCB?? I read somewhere that some of them started doing so.
Unlikely. JLC can do it because they have integration with LCSC. I don't know any other pcb / assembly companies who also sell parts.

LCSC is a distributor and sells parts to everybody. If they're doing business properly, JLC is just another customer.

What is outstanding about the JLC SMT service is how seamlessly it integrates with the PCB store front. Handling all that complexity with a minimum amount of human interaction is a big hurdle other manufacturers will have to jump. The next thing is raw floor space. Can you imagine how many SMT machines they have in operation and how the lines have to be layed out to route boards through the different machines efficiently? After all, it's hardly possible that one single line can satisfy all parts requests. The SMT service alone is a massive operation.
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Offline VEGETA

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #276 on: December 02, 2020, 11:16:00 am »
Does other manufacturers offer the same cheap assembly service as JLCPCB?? I read somewhere that some of them started doing so.
Unlikely. JLC can do it because they have integration with LCSC. I don't know any other pcb / assembly companies who also sell parts.

LCSC is a distributor and sells parts to everybody. If they're doing business properly, JLC is just another customer.

What is outstanding about the JLC SMT service is how seamlessly it integrates with the PCB store front. Handling all that complexity with a minimum amount of human interaction is a big hurdle other manufacturers will have to jump. The next thing is raw floor space. Can you imagine how many SMT machines they have in operation and how the lines have to be layed out to route boards through the different machines efficiently? After all, it's hardly possible that one single line can satisfy all parts requests. The SMT service alone is a massive operation.

So how much price are we talking about?

say I have A4 size panel with about 5-10 pieces each. About 10-15 unique parts, and about 10-30 panels to make. How much setup cost and total cost as approximation?

JLC SMT service eliminates setup costs according to my understanding. LCSC is for sure a game changer since it is like Digikey but in China and includes millions of Chinese dirt-cheap parts in somehow professional way... not like Aliexpress which has separate unreliable shops.


Offline phil from seattle

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #277 on: December 02, 2020, 04:51:28 pm »
They don't eliminate setup costs - there is an engineering fee but it is relatively small and makes small orders economic.

They took a bet that a mostly automated service would be popular. Based on what I can see, they seriously underestimated that. I would not be surprised to see other PCB services (Allpcb, pcbway, seeeeeed,...) jumping in. If anyone ever offers a reasonable set of connectors and other mechanicals, they will be getting my orders.

By the way, they are clearly trying to discourage the really small orders - 5 units or less.  In the last couple of months they appear to have significantly increased the number of components with minimum order numbers and I see a lot more parts with attrition. In the last couple of weeks  I did a proto run for a design and really only needed 3 boards but the cost difference between 3 and 10 was really small (about $1 each for the extra boards) so I had 10 made. Yet, they still limit you to 30 units per assembly job.
 

Offline SMTech

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #278 on: December 02, 2020, 05:03:16 pm »
Even with the limitations, the amount of work that went into creating the workflow they have will have been pretty significant and will need to be replicated by anyone who wants to do something similar, does it even make a decent margin... who knows?
 

Offline miceuz

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #279 on: December 02, 2020, 09:04:51 pm »
Doh. I tried that. First order they placed wrong resistors. I had 330 ohm and 1M ones, they skipped 1M ones and placed 330R everywhere.
No problem for the second order though...

Offline c64

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #280 on: December 03, 2020, 02:31:36 am »
Doh. I tried that. First order they placed wrong resistors. I had 330 ohm and 1M ones, they skipped 1M ones and placed 330R everywhere.
Really... Was it recently?
 


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