The Computron 3000 is a Z80 based microcomputer.
An initial prototype has been built and is nearing its end of life. Drafts for
a revised version (V2) are on the way.
The design files can be found here
Some details on the specns:
Many things have been learned from the first prototype:
A few photographs of the first prototype:
Current version of the case.
Inside of the case.
First verstion of the case.
CPU board with 74XX based memory address decoder. Raspberry PI for scale.
Lower memory board with boot ROM, kernel RAM and bank switching register.
First version of the UART board. A PCB was manufactured later, but not
Power supply board.