Author Topic: JLC PCB Prototype Assembly - Incredibly Cheap  (Read 21302 times)

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Offline SteveyG

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #75 on: September 06, 2019, 07:50:54 am »
Yes fingers crossed!

I looked at the basic component list and I noticed there are no capacitors on that list. Anyone got an idea why they haven't added some common capacitors to the basic component list? (or did I just not see them?)

Where is the basic list? Maybe for cost reasons.
This list has tons of capacitors: https://jlcpcb.com/video/jlcsmt_parts_library.xls

From what I found, the excel spreadsheet doesn't line up with the parts that are available for assembly.

There were parts that couldn't be assembled which were in the excel sheet, but there were also a lot of parts available which aren't in that spreadsheet, so things like SMD electrolytic capacitors can now be assembled.

Offline tglev

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #76 on: September 06, 2019, 08:36:02 am »
There is also demo available in this site https://jlcpcb.com/smt-assembly
someone can test if you modify
https://jlcpcb.com/quote#/?fromDemo=yes

to

https://jlcpcb.com/quote#/?fromDemo=no

Maybe even order that way?

This does not work, sadly.
The next button in the demo does not work either.

It does feel like we're getting closer and closer to getting PCBA!
 

Offline juwi

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #77 on: September 07, 2019, 09:44:31 am »
It is open for test customers.
They still have bugs to fix, but it is going on really cheap. As soon as my project is working through the little bugs I will keep you updated, as of yet I can tell you:

- Gerber Upload as you know
- then you may enable SMT below where Stencil is also
- there you can select whether top or bottom is to be placed
- then you have to upload BOM and CPL
- youll have to confirm each part, which is nicely made with direct access to the datasheets and basics via dropdown in a table
- then you get a render of your pcb with parts where you can check placement

As of now I have some probs with a bunch of resistors they are working on :)

Best regards
Julian

PS: As the Demo seems to be working now, there shall be no need for screenshots?
« Last Edit: September 07, 2019, 10:13:52 am by juwi »
 
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Offline SteveyG

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #78 on: September 07, 2019, 11:42:56 am »
It is open for test customers.
They still have bugs to fix, but it is going on really cheap. As soon as my project is working through the little bugs I will keep you updated, as of yet I can tell you:

- Gerber Upload as you know
- then you may enable SMT below where Stencil is also
- there you can select whether top or bottom is to be placed
- then you have to upload BOM and CPL
- youll have to confirm each part, which is nicely made with direct access to the datasheets and basics via dropdown in a table
- then you get a render of your pcb with parts where you can check placement

As of now I have some probs with a bunch of resistors they are working on :)

Best regards
Julian

PS: As the Demo seems to be working now, there shall be no need for screenshots?
I'm uploading a video this weekend to show the order process :)

Offline juwi

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #79 on: September 07, 2019, 03:01:49 pm »
they fixed it, my resistors work now :)

ah yes, no more then 10 so called extended parts are allowed per order.

yours julian
 

Offline ddavidebor

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #80 on: September 07, 2019, 03:42:15 pm »
ah yes, no more then 10 so called extended parts are allowed per order.


F**k
Davide Bortolami,
Fermium LABS srl
 

Offline juwi

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #81 on: September 07, 2019, 04:07:21 pm »
na na... :)

Well, my order is out. I paid less than 10 Dollars for 5 placed boards with some 70 parts each (excluding part/PCB cost of course)

Yes, it is limiting but if you see it as a helping hand preventing you from having to place hundreds of biird feedings like resistors and caps - I like it.
The costly parts I can solder myself after checking the rest. But I dont have to solder some 60 caps and chip resistors. Winner :)

yours julian
 

Offline juwi

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #82 on: September 07, 2019, 04:09:37 pm »
I'm uploading a video this weekend to show the order process :)

The placement preview stopped working after I added all parts - how many parts has your board?

yours julian
 

Offline mskeete

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #83 on: September 07, 2019, 05:11:24 pm »
The placement preview is slow. A few times I thought it had stopped working. On my first attempt I saw nothing as I forgot to convert the placement data to mm
 

Offline ddavidebor

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #84 on: September 07, 2019, 05:13:04 pm »
Ok so a suggestion: add a parameter JCLSMT-rotation in your libraries, add it to the pick and place csv file, then use excel to rotate the chips automatically
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Offline SteveyG

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #85 on: September 07, 2019, 05:26:59 pm »
I'm uploading a video this weekend to show the order process :)


The placement preview stopped working after I added all parts - how many parts has your board?

yours julian

Preview didn't work on mine when I had an error with the file. It got sorted in the audit though

Offline SteveyG

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #86 on: September 07, 2019, 05:29:17 pm »
na na... :)

Well, my order is out. I paid less than 10 Dollars for 5 placed boards with some 70 parts each (excluding part/PCB cost of course)

Yes, it is limiting but if you see it as a helping hand preventing you from having to place hundreds of biird feedings like resistors and caps - I like it.
The costly parts I can solder myself after checking the rest. But I dont have to solder some 60 caps and chip resistors. Winner :)

yours julian

Exactly my thought. Any helping hand to solder all the passives is a winner in my book. Shame its green PCBs only, but that's only due to the early stage. Hopefully if it proves popular more options will exist.

Offline bitseeker

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #87 on: September 07, 2019, 05:55:51 pm »
Agreed. That's a great time saver for $2/board. Looking forward to seeing the physical results.
I TEA.
 

Offline ddavidebor

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #88 on: September 07, 2019, 06:20:57 pm »
Well, for now not enthusiastic about the component availability.
This is what i was able to populate.
 

Positioning issues are a huge time sucker.
For now i think i am sticking with PCBWAY for this kind of boards.

The risk of making errors not having a professional doing the positioning is a huge bummer for me. If I screw this two times, my customer is going to kick me where the sun doesn't shine.
Davide Bortolami,
Fermium LABS srl
 

Offline mrpackethead

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #89 on: September 07, 2019, 08:50:02 pm »
Well, for now not enthusiastic about the component availability.
This is what i was able to populate.
  (Attachment Link)

Positioning issues are a huge time sucker.
For now i think i am sticking with PCBWAY for this kind of boards.

The risk of making errors not having a professional doing the positioning is a huge bummer for me. If I screw this two times, my customer is going to kick me where the sun doesn't shine.

Something odd ball going on with your 5 Pin SOT-23's     They all seem 180degrees out.

On a quest to find increasingly complicated ways to blink things
 

Offline ddavidebor

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #90 on: September 07, 2019, 08:54:26 pm »
Well, for now not enthusiastic about the component availability.
This is what i was able to populate.
  (Attachment Link)

Positioning issues are a huge time sucker.
For now i think i am sticking with PCBWAY for this kind of boards.

The risk of making errors not having a professional doing the positioning is a huge bummer for me. If I screw this two times, my customer is going to kick me where the sun doesn't shine.

Something odd ball going on with your 5 Pin SOT-23's     They all seem 180degrees out.

Yep the only thing straight are resistors and capacitors
Davide Bortolami,
Fermium LABS srl
 

Offline pmnxis

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #91 on: September 07, 2019, 10:35:11 pm »
Hello I am beta user too.

There's some issue, some of rotation value ( Pick and place ) is mismatch.

I fixed it manually open the csv file myself.

About this rotation issue, Mainland china sz-jlc explained it very well. but i think they didn't on international port.

BTW there's some issue price is strange.



price is different between lcsc and jlc-smt.

and even that's correct there's no price MOQ 100 or 1000.

hmm I hope they fix this issue.
 

Offline SteveyG

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #92 on: September 08, 2019, 07:15:12 am »
Hello I am beta user too.

There's some issue, some of rotation value ( Pick and place ) is mismatch.

I fixed it manually open the csv file myself.

About this rotation issue, Mainland china sz-jlc explained it very well. but i think they didn't on international port.

BTW there's some issue price is strange.

price is different between lcsc and jlc-smt.

and even that's correct there's no price MOQ 100 or 1000.

hmm I hope they fix this issue.

On my order, I notice some are cheaper than LCSC and a few more expensive. Nothing dramatic like that opto-isolator though.

Online GeorgeOfTheJungle

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #93 on: September 08, 2019, 08:35:31 am »
 :popcorn:
#include <unistd.h>
int main (void) { while (!NULL) fork(); }
 

Offline AClockworkOran

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #94 on: September 08, 2019, 04:24:08 pm »
Hi

I feel like an idiot right now but the site is not giving me the option for SMT assembly. I've tried multiple GERBERS, loggin in and out, changing browsers and wiping my cookies. Has anyone else experienced this issue or is service in some closed beta?

I'm really keen to test this service as the reflow oven at my University is broken and I'm not keen on soldering 100+ passives by hand.
 

Offline Ribster

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #95 on: September 08, 2019, 04:41:38 pm »
Hi

I feel like an idiot right now but the site is not giving me the option for SMT assembly. I've tried multiple GERBERS, loggin in and out, changing browsers and wiping my cookies. Has anyone else experienced this issue or is service in some closed beta?

I'm really keen to test this service as the reflow oven at my University is broken and I'm not keen on soldering 100+ passives by hand.

Get a simple toaster oven with a triac. Monitor the temperature and feast on succes!
www.ashlabs.be
Design of hardware, software with stm32 and prototyping.
 

Offline AClockworkOran

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #96 on: September 08, 2019, 04:43:25 pm »
Hi

I feel like an idiot right now but the site is not giving me the option for SMT assembly. I've tried multiple GERBERS, loggin in and out, changing browsers and wiping my cookies. Has anyone else experienced this issue or is service in some closed beta?

I'm really keen to test this service as the reflow oven at my University is broken and I'm not keen on soldering 100+ passives by hand.

Get a simple toaster oven with a triac. Monitor the temperature and feast on succes!

If I was the one paying i'd have done that a long time ago  ;)
 
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Offline ddavidebor

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #97 on: September 08, 2019, 04:51:44 pm »
Hi

I feel like an idiot right now but the site is not giving me the option for SMT assembly. I've tried multiple GERBERS, loggin in and out, changing browsers and wiping my cookies. Has anyone else experienced this issue or is service in some closed beta?

I'm really keen to test this service as the reflow oven at my University is broken and I'm not keen on soldering 100+ passives by hand.

It's open only to a limited number of existing customers now
If you send an email to the customer service maybe they can enable it for you
Davide Bortolami,
Fermium LABS srl
 

Offline ddavidebor

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #98 on: September 08, 2019, 05:03:22 pm »
(Attachment Link)

For now i think i am sticking with PCBWAY for this kind of boards.


Well I am sticking with PCBWAY for now, i got this board manufactured in 3pcs, spent 307 USD, of which:
* 160 of components (i've got 4$ PGAs and 2.5$ rotary switches there...)
* 100 for the 4-layer pcb. This would have been cheaper on JLCPCB, although I do not trust the quality or competence of the technical staff yet
* 30 USD for assembly and purchasing of all components from a variety of suppliers (including LCSC, the same as JLCPCB)
* shipping

So yeah JLCPCB prices are crazy low but hard to compare with the more rounded assembly services and may not end up being the cheapest solution after all
« Last Edit: September 08, 2019, 05:05:39 pm by ddavidebor »
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Offline bitseeker

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Re: JLC PCB Prototype Assembly - Incredibly Cheap
« Reply #99 on: September 08, 2019, 11:13:41 pm »
Thanks for the comparison, Davide.
I TEA.
 


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