PCB Build - Progress - Post your Pics here :-)

Open source STF clone project.
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Forgottenmyname
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PCB Build - Progress - Post your Pics here :-)

Post by Forgottenmyname » Sat Sep 01, 2018 9:21 pm

Hi All,

So today I've started building the STF Remake PCB. I've started by soldering in the sockets that I already had at home. I don't know why but I always seem to start my PCB's by soldering in the sockets first and then on to the smaller components.

Thoughts so far, the board is easy to solder, nice big solder pads so far. Although I have spotted an area where extra care is needed. Some of the vias around U60 are very close to the socket pads, so don't go too mad with the solder.

Not sure how much more I'll get done this week as I'm off up to Dundee for a few days for work.

Please post your pics of your progress here. It'll be good to see how you're all getting on whilst I'm away :-)

Here's mine, chips inserted just for the hell of it :D
STFRM010918.jpg
STFRM010918.jpg (988.32 KiB) Viewed 479 times

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Icky
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Re: PCB Build - Progress - Post your Pics here :-)

Post by Icky » Sat Sep 01, 2018 10:52 pm

:coolpics:

I spent my day doing the opposite, de-soldering a donor ST for some of the components.

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exxos
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Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos » Sun Sep 02, 2018 12:21 am

Nice ! Yeah be careful of those close vias to pads. I did put a lot of space between those things, but doesn't look like it followed my rules :? They were ultra close around the ram area, but after the DRC was set, they seemed to move away.. But no idea why it made pads close to vias in other areas.. Really hate auto routers!

Looking well nice in any case!
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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rubber_jonnie
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Re: PCB Build - Progress - Post your Pics here :-)

Post by rubber_jonnie » Mon Sep 03, 2018 4:03 pm

Well here's mine so far, but as yet no soldering done, as I'm just checking everything off as it comes from the donor board:
Progress.jpg
Progress.jpg (371.47 KiB) Viewed 405 times
There's a couple of issues I've hit so far in testing out component fit.

First is the keyboard connector, and I'm assuming that J12 on the remake board is the same as J12 on the real thing:
IKBD_Conn_2.jpg
IKBD_Conn_2.jpg (297.13 KiB) Viewed 405 times
As you can see, either we're missing a hole, or a space, for the gap in the pins.

Second is the pitch of the MIDI socket ground connectors:
midi.jpg
midi.jpg (289.4 KiB) Viewed 405 times
As you can see, the donor sockets have a wider pitch than the holes in the board.

Neither of these issues is insurmountable, I'm sure, but worth mentioning, unless I've missed a post here that covers both of these aspects.

Oh, and one thing I do have to say, is that the pitch on the ROM socket solder pads is FREAKING AWESOME!

Given the tight pitching of the pins on these sockets, it's a great job to have got them so perfect, mine dropped in with barely a wiggle :)
Collector of old Atari things:
800XL + Ape Warp mod, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg) + Gotek, 1040STFM + Vortex ATOnce + Gotek, 1040STF long button floppy, 4160 STE with Gotek and ROM switcher, 4160STE with 32Mhz booster, ROM switcher and CosmosEx, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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exxos
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Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos » Mon Sep 03, 2018 4:33 pm

rubber_jonnie wrote:
Mon Sep 03, 2018 4:03 pm
Well here's mine so far, but as yet no soldering done, as I'm just checking everything off as it comes from the donor board:


There's a couple of issues I've hit so far in testing out component fit.

rubber_jonnie wrote:
Mon Sep 03, 2018 4:03 pm
First is the keyboard connector, and I'm assuming that J12 on the remake board is the same as J12 on the real thing:
Hmm, bugger,,

What I did matches the STF...
stf.jpg
stf.jpg (9.15 KiB) Viewed 399 times
or.jpg
or.jpg (11.6 KiB) Viewed 399 times
So why is the ST actually 1 pin longer :roll:
rubber_jonnie wrote:
Mon Sep 03, 2018 4:03 pm
Second is the pitch of the MIDI socket ground connectors:
Yeah, posted about that earlier.. they were the ones icky sent, not the actually ones I purchased ages ago (lost in loft probably)


rubber_jonnie wrote:
Mon Sep 03, 2018 4:03 pm
Oh, and one thing I do have to say, is that the pitch on the ROM socket solder pads is FREAKING AWESOME!
Given the tight pitching of the pins on these sockets, it's a great job to have got them so perfect, mine dropped in with barely a wiggle :)
Nice! hopefully everything else will line up..

As a note, pretty much alignment of everything is going to be out.. the PSU holes are not right either.. but this board is more to test everything works anyway.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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exxos
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Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos » Mon Sep 03, 2018 4:42 pm

ahhh, the "blob" is pin 8 :lol: I thought it just was a ink blob and never thought it was a pin.. :roll:

or.jpg
or.jpg (11.6 KiB) Viewed 398 times

Actually "1,8" probably it supposed to say.. Can "see" it now, should have followed the STE one!

ste.jpg
ste.jpg (10.42 KiB) Viewed 397 times
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

Forgottenmyname
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Re: PCB Build - Progress - Post your Pics here :-)

Post by Forgottenmyname » Mon Sep 03, 2018 4:50 pm

At least they are both ground connectors and can be easily linked.

I'm hoping for an easy job in Dundee, so I can get cracking on the next few parts of the PCB when I get home at the end of the week.

Incidentally, I don't have a falcon ram board but was wondering if it's still possible to use something like the market and your 4mb board in the meantime?

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exxos
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Re: PCB Build - Progress - Post your Pics here :-)

Post by exxos » Mon Sep 03, 2018 4:52 pm

Forgottenmyname wrote:
Mon Sep 03, 2018 4:50 pm
At least they are both ground connectors and can be easily linked.
Yeah, if both gnds are wired on the keyboard connector then probably not a issue really..


Forgottenmyname wrote:
Mon Sep 03, 2018 4:50 pm
Incidentally, I don't have a falcon ram board but was wondering if it's still possible to use something like the market and your 4mb board in the meantime?
Yeah, my 4MB MMU kit should work.

Actually probably a good idea for someone to use that anyway.. just in case the falcon ram card template wasn't wired up right :lol:
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

Forgottenmyname
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Re: PCB Build - Progress - Post your Pics here :-)

Post by Forgottenmyname » Mon Sep 03, 2018 5:05 pm

LMAO, I'll probably buy a new one from you, as I have no idea where I put the other one.

Too much tidying to do, too little time.

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rubber_jonnie
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Re: PCB Build - Progress - Post your Pics here :-)

Post by rubber_jonnie » Mon Sep 03, 2018 10:36 pm

OK cool, nothing we can't get round then 😊

One last thing I noticed, the reset switch pins are fine, but the metal can has no holes for its tabs. No biggie again, just something to consider for the next iteration.
Collector of old Atari things:
800XL + Ape Warp mod, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg) + Gotek, 1040STFM + Vortex ATOnce + Gotek, 1040STF long button floppy, 4160 STE with Gotek and ROM switcher, 4160STE with 32Mhz booster, ROM switcher and CosmosEx, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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