Jeff, Ths isn't a saw problem, which was made in the USA, the thread problem was with the gearbox - David Brown/Made in UK. In any case the thread problem is solved as I described in my last post - I simply tapped for a new grubscrew. The motor drive unit is now assembled and installed and runs very nicely. My next task will be to fabricate the step pulleys and this brings me to a question for the group, which is, . . . in order to slack the V-belt for speed changes I plan to use an idler pulley and in thinking about that it occurred to me that the idler must be on the "slack" side of the driving pulley as opposed to the "pulling" side. Am I correct in this, or does it matter in the long run? Regards, Harry -----Original Message----- >From: Jeff D <jeffdayman@xxxxxxxxxxxx> >This machine is Rockwell and will either be made in USA or Taiwan. It is very >unlikely that it would have any Whitworth or cycle threads. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.