I just found this http://www.youtube.com/watch?feature=endscreen&NR=1&v=kB8LH_MOZcc and it says that there are no plans, but if you look at Modeltec Feb. 1998 you you will find an article with plans.
Hope this help someone!
Mike.
Can anyone tell me what size pulleys these are (http://www.lathes.co.uk/atlas/page3.html) in the drawing in this link? Also how many teeth are in the gears of the four backgears and, last the gear on the end of the spindle. Thank-you, Mike.