After all the boards were cut I could proceed to construct the skeleton of the cabinet. It turned out to be a time consuming task.
With the finished design I could proceed with cutting of the boards to correct dimensions.
The most important part of a computer architecture is a clock circuit. The circuit described here has the option to run freely in a-stable mode and also operate in single step debugging mode. In this post I will describe how to implement this design in KiCad and manufacture a double sided printed circuit board.