Author Topic: JLCPCB SMT Assembly Service  (Read 7382 times)

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Offline danie1

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Re: JLCPCB SMT Assembly Service
« Reply #100 on: November 08, 2019, 01:28:13 pm »
I got an email reply in case anyone else is wondering. They'll only assemble stuff that's in stock at the time of order and there's no way to get them to hold the pcb or part stock for you.

They also said that one of the parts I'm waiting on (MAX31855) they "won't buy" - it's an extended part that's still listed in the parts DB and is in stock at LCSC. I dunno if they listed it by mistake or there's some temporary procurement problem. I love the idea of getting jlc to assemble a few boards for prototypes but it's not as useful if listed parts might never get restocked for some reason.
 

Offline snoopy

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Re: JLCPCB SMT Assembly Service
« Reply #101 on: November 09, 2019, 05:51:44 am »
When I upload the files it shows some of the components are missing for instance only 2 out of 5, 100 ohm resistors are shown in the LCSC parts list even though 5 designators are specified in the BOM.

Anyone come across this ?

cheers
 

Offline danie1

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Re: JLCPCB SMT Assembly Service
« Reply #102 on: November 09, 2019, 10:04:55 am »
When I upload the files it shows some of the components are missing for instance only 2 out of 5, 100 ohm resistors are shown in the LCSC parts list even though 5 designators are specified in the BOM.

Anyone come across this ?

I haven't come across it but one thought, is your BOM grouped so all the designators for the same component are on the same line or one line per designator? If the latter I wonder if you are running afoul of some unspecified line limit in their parser. All the BOMs I've successfully used are grouped and I've had some lines with 20+ copies of the same component.
 

Offline snoopy

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Re: JLCPCB SMT Assembly Service
« Reply #103 on: November 10, 2019, 01:00:19 am »
When I upload the files it shows some of the components are missing for instance only 2 out of 5, 100 ohm resistors are shown in the LCSC parts list even though 5 designators are specified in the BOM.

Anyone come across this ?

I haven't come across it but one thought, is your BOM grouped so all the designators for the same component are on the same line or one line per designator? If the latter I wonder if you are running afoul of some unspecified line limit in their parser. All the BOMs I've successfully used are grouped and I've had some lines with 20+ copies of the same component.

It's a CSV file and multiple designators of the same component type are separated by commas ;)
 

Offline danie1

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Re: JLCPCB SMT Assembly Service
« Reply #104 on: November 10, 2019, 12:54:55 pm »
Hmm, mine is CSV but multiple components of the same type are space separated:
Code: [Select]
Reference, Quantity, Value, Footprint, Datasheet, LCSC Part Number, Part Number
R7 R9 R20 R21 R10 R11 R12 R13 R18 R14 R15 R27 R28 R29 ,14,"10k","Resistor_SMD:R_0402_1005Metric","~","C25744","0402WGF1002TCE"
 

Offline snoopy

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Re: JLCPCB SMT Assembly Service
« Reply #105 on: November 11, 2019, 02:13:06 am »
Hmm, mine is CSV but multiple components of the same type are space separated:
Code: [Select]
Reference, Quantity, Value, Footprint, Datasheet, LCSC Part Number, Part Number
R7 R9 R20 R21 R10 R11 R12 R13 R18 R14 R15 R27 R28 R29 ,14,"10k","Resistor_SMD:R_0402_1005Metric","~","C25744","0402WGF1002TCE"

For some reason it doesn't like if I specify the LCSC part number. When I eliminate this column all of the components are counted for but it doesn't automatically find a match to the LCSC column.

EDIT: The missing components are not in the Pick and Place file. For some reason Altium is not dealing with the Variant properly.
« Last Edit: November 12, 2019, 02:30:01 am by snoopy »
 

Offline Kentxu

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Re: JLCPCB SMT Assembly Service
« Reply #106 on: November 13, 2019, 03:22:47 pm »
I have sorted many of the parts in the Excel file to make it much more convenient to use.
Hope you like it. "jlcsmt_parts_library_4.zip" 1.4MB

http://s000.tinyupload.com/?file_id=35614263837265853771

Thanks for the spread sheet list of Basic Parts. Much easier than looking on the JLC page.

Does anyone know of an Altium library of the Basic Parts?
 


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