brew-your-own-unibus boards?

der Mouse wrote: ... Which raises a question I've been meaning to ask. Has anyone made their own unibus boards? Is this fool-hearty? I have half a mind to look over the "IDE for Soviet unibus" zip file I found and make my own uniboard board with a modern day CPLD and IDE interface. How crazy is that? I have 4-8 layer PCB's fabricated regularly and have a reasonable CAD setup to do that, so design, layout & fabrication is not a problem, nor is TTL design (heh, especially at unibus speeds :-) And I write VHDL for CPLD's all the time and program them. Seems like a 4 layer board with gold fingers would work - the few boards I've handled seemed pretty thick, however. I'm guessing the thickness needs to be correct. I have not (yet) looked at a unibus card schematic - would be it hard to create a bus master IDE interface? Is a unibus controller a relatively straight forward TTL design ? I should probably ask on the PUP list also, but I thougth I'd see if anyone here has opinions. And, if I did manage to create a realiable IDE interface, would anyone else want one? (I realize cost would be the overriding factor - believe it or not on small runs like I do the PCB is by far the most expensive part) -brad