Page 3 of 17
Re: Let's build a CTPCI!
Posted: 17 Mar 2023 09:54
by markus0321
Hi.
Are these attached gerber files complete or just outer layers without power and ground?
I tried to order for production and it only detects that there are 2 layers, is this correct?
Edit:
Sorry, I didn't read that you are still working on the inner layers... :roll:
But these PCBs look so nice that I was tempted to check them in JLCPCB :D
Re: Let's build a CTPCI!
Posted: 17 Mar 2023 12:22
by foft
Ctpci has 4 layers
Ctpci slots has 2 layers
Pretty sure pcbway detects the inner layers fine
Re: Let's build a CTPCI!
Posted: 17 Mar 2023 13:59
by markus0321
foft wrote: 17 Mar 2023 12:22
Ctpci has 4 layers
Ctpci slots has 2 layers
Pretty sure pcbway detects the inner layers fine
In fact, PCBWAY detects layers correctly, but it is more than twice as expensive there as in JLCPCB.
So I can order these boards at PCBWAY for testing, or maybe you will still improve these gerber files?
Re: Let's build a CTPCI!
Posted: 17 Mar 2023 17:30
by foft
I wasn’t going to edit them more, unless the pcb does not work. I guess its just a case of renaming the inner layers to the one jlcpcb expects.
Re: Let's build a CTPCI!
Posted: 18 Mar 2023 08:30
by markus0321
foft wrote: 17 Mar 2023 17:30
I wasn’t going to edit them more, unless the pcb does not work. I guess its just a case of renaming the inner layers to the one jlcpcb expects.
The file names were actually wrong. Instead of the extension g1 I changed to gl2 and g2 to gl3 and it loaded correctly.
Thank you for help.
I wonder if this will work....
:D
Re: Let's build a CTPCI!
Posted: 18 Mar 2023 09:02
by foft
Getting there. Lots of 0603s last night, doing these by hand without paste - all the 0.1uFs and the 8.2Ks. Board now covered in flux!
Just a few more small parts to go, then onto the chips and the SMD headers. After which it'll need a good clean!
0603_cap_8.2k_ohm_bottom.JPG
0603_cap_8.2k_ohm_top.JPG
Re: Let's build a CTPCI!
Posted: 18 Mar 2023 11:12
by foft
Time for these chaps:
pci9504.JPG
My method (getting better but still a relative beginner) is:
Stick them down with tape in place:
kaptop_9054.JPG
Tack the corners with a big blob of solder!:
blobs.JPG
Put tacky flux the whole way along:
secret_weapon.JPG
Drag solder, watching on this:
microscope.JPG
Then for bridges remove excess with some braid and if it's not too much excess another blob of flux will usually help it out some!
Here is the result, still needs a good clean but getting there:
top_all_but_headers.JPG
bottom_all_but_headers.JPG
Re: Let's build a CTPCI!
Posted: 18 Mar 2023 11:54
by HigashiJun
Nice progress !
Hope the final result will be good.
Re: Let's build a CTPCI!
Posted: 18 Mar 2023 19:50
by alexh
PLX. I used to work for them designing PCIe chips
Re: Let's build a CTPCI!
Posted: 19 Mar 2023 03:05
by HigashiJun
@foft
Oh, and by the way, if you later want to sell your surplus, I'm in for one CTPCI (in kit or built).
Cheers.