building my own relay computer

[Tom Sparks]

I've been bouncing around the idea of building my own relay computer

* I have mostly inspired by the TIM project[1] and Harry Porter's Relay
Computer[2]
* I am looking at having a limited number registers like the 6502 or 6800
* the computer is going to be Harvard architecture based

I wondering have any of use done anything like this?

[1] http://www.northdownfarm.co.uk/rory/tim/
[2] http://web.cecs.pdx.edu/~harry/Relay/