I have been working on a rather large makeblock installation (I have ran out of screws now!)
It is a 1-stop milling-and-drilling setup to create PCBs in 1 go:
It uses the 8mm linear bearings + the threaded rod from a thread-drive pack, together with new stepper mounterplates, backlash compensation and a longer threaded rod I got from a local hardware store. The drill & mount I still had around - ordered them from germany about a decade ago.
The resulting board so far ->
This was milled using a 1mm router bit (way too big!) while I am waiting for the post to arrive containing a set of fresh 0.1mm v-groove routerbits.
More pictures here in my Facebook photoalbum
To be continued!