I opened the drawing file and when i rotate the view -90 degree's (the one in the middle which shows the profile of the 3 bearings on the pipe) there does not seem to be enought room for a suported rail? I think if you changed the bearing contact points to 12:00, 4:00 and 8:00 for example this will allow for the weight of the gantry to ride at the 12:00 point and the other two to stop any lateral movement, and the bolting plate for the gantry will be in a horizontal possision.
Hope this makes sense.
Joe |