Beginning of very long journey

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mpattonm
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Re: Beginning of very long journey

Postby mpattonm » Fri Jan 04, 2019 8:42 pm

Yes, it is, sorry.

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Re: Beginning of very long journey

Postby calimero » Tue Jan 08, 2019 6:34 pm

I just open Amiga 1200 and solder power connector which become loose...

and A1200 board is quite smaller than Falcon board and it have much more "dense" traces - almost entire board is filled with traces :)

Does anyone know how many layers have Amiga 1200 board?
Does it also have "dummy" routings like Falcon board? :)
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Re: Beginning of very long journey

Postby mpattonm » Wed Jan 09, 2019 6:54 am

calimero wrote:Does anyone know how many layers have Amiga 1200 board?
Does it also have "dummy" routings like Falcon board? :)

Have a look: http://www.amigapcb.org

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Re: Beginning of very long journey

Postby calimero » Wed Jan 09, 2019 8:27 am

mpattonm wrote:
calimero wrote:Does anyone know how many layers have Amiga 1200 board?
Does it also have "dummy" routings like Falcon board? :)

Have a look: http://www.amigapcb.org

Very cool and useful! :)
I see that there is "inner" layer but nothing happen when I choose it. Does it mean that there is only two side!?
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Re: Beginning of very long journey

Postby jd » Tue Apr 30, 2019 10:46 am

This looks really cool, new falcons :)

Any juicy updates?

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Re: Beginning of very long journey

Postby mpattonm » Tue Apr 30, 2019 7:00 pm

Well not much, but its still ongoing. I have discovered a bug in schematic I yet have to fix.

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Re: Beginning of very long journey

Postby jd » Wed May 01, 2019 9:10 am

Thanks and good luck.

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Re: Beginning of very long journey

Postby Rustynutt » Sat May 18, 2019 6:25 am

Finally stopped by a shop in the small town we moved to a couple of years ago. Only knew it was some kind of plastic shop.
Met the owner, took a look around, he has a very nice injection molding business :)
Talked a minute about vintage computer cases, he said to bring a sample by.

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Re: Beginning of very long journey

Postby dhedberg » Sat May 18, 2019 10:57 am

Rustynutt wrote:Finally stopped by a shop in the small town we moved to a couple of years ago. Only knew it was some kind of plastic shop.
Met the owner, took a look around, he has a very nice injection molding business :)
Talked a minute about vintage computer cases, he said to bring a sample by.

Very interesting. Treat this guy well. His services can prove to become very valuable to us. :D
I know exxos is still looking for a affordable way to produce cases for his ST remake as well.
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Re: Beginning of very long journey

Postby Rustynutt » Fri May 24, 2019 5:15 pm

Yes, and being the small "village" it is, was quite surprised.
Did a bit of reading how the reproduction Amiga cases came about.
As the story went, the actual tooling (molds.. expensive) were discovered at a sale. A person knew their purpose, but not what they were for. They contacted a friend they thought might be interested in them, and so went the story.
I'm sure the molds used in Taiwan are long gone.
This guy seemed to think as they do tooling in-house, anything is possible.
Don't want to jumpstart a huge discussion, personally think a case to fit all ST form factor boards makes the most sense, with a drop in rear back plane. I recognize other interchangeability issues.

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Re: Beginning of very long journey

Postby Cyprian » Fri May 24, 2019 7:27 pm

Rustynutt wrote:Don't want to jumpstart a huge discussion, personally think a case to fit all ST form factor boards makes the most sense, with a drop in rear back plane. I recognize other interchangeability issues.

+1
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Re: Beginning of very long journey

Postby dhedberg » Fri May 24, 2019 7:44 pm

Cyprian wrote:
Rustynutt wrote:Don't want to jumpstart a huge discussion, personally think a case to fit all ST form factor boards makes the most sense, with a drop in rear back plane. I recognize other interchangeability issues.

+1

+2 8)
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Re: Beginning of very long journey

Postby Rustynutt » Fri May 24, 2019 8:46 pm

And a slight headroom increase, maybe 15mm or so.

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Re: Beginning of very long journey

Postby Rustynutt » Tue Jun 04, 2019 8:28 pm

What about the top venting grates?
Eliminate and assume sufficient internal fan cooling?
Maybe a solid top with a Fuji imprint?
Provide "knock outs" resembling the original case?

That is a costly part of a repro case from a tooling standpoint.

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Re: Beginning of very long journey

Postby dbsys » Wed Jun 05, 2019 4:33 pm

mpattonm wrote:Just a quick update: schematics are complete (and no, I am not going to make any more changes this time, I swear), layout is fixed and I have completed first round of routing. Memory buses, clock signals, audio out, TV out and some other subsystems were routed manually, while autorouter took care of the rest. Still on a four layer board.
Next step is a manual cleanup and optimizations, it should keep me busy for couple of days.


I do not see the ROM port. Have you removed it?

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Re: Beginning of very long journey

Postby burann » Mon Jul 22, 2019 8:00 am

Fantastic project, would buy !

Whats the plan to populate a board like this ? Do you have to find a donor Falcon first ?

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Re: Beginning of very long journey

Postby mpattonm » Tue Oct 22, 2019 12:41 pm

Just a quick update on a progress: I have cleaned up the silkscreen (unimportant but funny part) and I am about 50% done with VCC interconnections.
Oh yes, that bug in schematic is now fixed too.

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Re: Beginning of very long journey

Postby mpattonm » Wed Oct 23, 2019 9:41 am

VCC done, now there is just a 120 unrouted GND connections left. Then the last thing to do is to check those few inner layer tracks and maybe re-align them, do a manufacturing capability check and I am done with a design.

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Re: Beginning of very long journey

Postby mpattonm » Wed Oct 23, 2019 9:44 am

Actually, its 112 only
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Re: Beginning of very long journey

Postby TheNameOfTheGame » Wed Oct 23, 2019 12:00 pm

Great news! This is a very exciting project. :cheers:

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Re: Beginning of very long journey

Postby mpattonm » Thu Oct 31, 2019 11:47 am

So it seems I have made it to the PCB mfg readiness, thus I have started slowly releasing all the relevant data on my github project page:

https://github.com/salacpavel/F030NG

So far, there are no mfg. data, as I want to review the design once more and decide how to proceed with prototyping. But at least there is a full schematic, partslist and PCB exports available already, so anyone is feel free to take a peek and perhaps do some schematic review on your own. In that case please report all issues over the github, not here.
Last edited by mpattonm on Thu Oct 31, 2019 5:47 pm, edited 1 time in total.

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Re: Beginning of very long journey

Postby viking272 » Thu Oct 31, 2019 5:27 pm

Wow, very interesting - great work mpattonm!

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Re: Beginning of very long journey

Postby frost » Thu Nov 07, 2019 3:48 pm

Out of curiosity, what's the form factor of the board ?
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Re: Beginning of very long journey

Postby mpattonm » Thu Nov 07, 2019 4:38 pm

Its not any of *TX if that answers your question.

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Re: Beginning of very long journey

Postby frost » Thu Nov 07, 2019 8:13 pm

Yes ! Amazing job indeed, totally forgot to mention that :)
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