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Z80 homebrew computer

Modular z80 computer designed, and will be etched and built, by me.

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Im making a bad modular z80 computer and working on it mostly on weekends.

cpu.pcb

PCB file for CPU card made in express PCB

pcb - 10.81 kB - 02/15/2019 at 01:28

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Back.pcb

PCB file for backplane made in express PCB

pcb - 14.05 kB - 02/15/2019 at 01:16

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BACKPLANE.pdf

Backplane for all the cards

Adobe Portable Document Format - 95.92 kB - 02/11/2019 at 22:07

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CPU BOARD.pdf

CPU board for Z80

Adobe Portable Document Format - 92.67 kB - 02/11/2019 at 22:06

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  • 1 × Z80 8-bit cpu by zilog
  • 1 × 1 mHz Full can oscilator full can Crystal oscilator (Frequency will change later into project)
  • 1 × Button. The larger through hole kind. i don't know the exact dimensions.
  • 1 × Pull up resistor 5k-10k ohm for reset pin on z80

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Discussions

Peabody1929 wrote a day ago point

I would like to suggest using EasyEDA for schematic capture, board layout and fab.  I use this service and I am very happy with the results.  Your processor board could be: 2 layers, plated through holes, 6 mil traces with 6 mil spaces between traces, autorouted,  up to 100mm x 100mm and cost $2.00 for 10 boards delivered in a week.  Hard to beat!

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Buzz wrote a day ago point

Hi. thanks for the comment :). I would use a PCB manufacturing service but i would like to make the boards myself simply because it makes it more "home brew". I'm using Express PCB because i find it easy to use. Thanks for the recommendation though, and i'll look into the software. (You're right though, and with a manufacturing service I wouldn't have to drill the hundred or so holes on this board by hand :/)

EDIT: I'm looking at the program now and it looks pretty good! probably better than express PCB but i'll have to look into it more later today. thanks again :)

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