I often see posts about DC motor controller issues on mini lathes and the almost complete lack of service info on them - I came across a pdf file on the antiqueradios forum - posted by a user called ACORNVALVE, he has gone to a great deal of trouble - the document is very comprehensive and would be a great help should one need to repair the controller. While my lathe is larger and uses a VFD I thought it would make a useful post for those that have mini - lathes and possibly mini milling machines.