I don't think my cartesian robot is quite ready for such an honour as being on the wiki.
It WAS suppose to be finished by Christmas, last year, lol.
Typical problem is designing the extruder, from junk lying around, becoming more and more machined (I ask a friend to make the occasional part for me on his work mill/lathe.
I'll give it a page soon, this topic is to give insight of not how to do things.