Re: Supermax YCM CNC info?
Ball screws or lead screws make no difference. They assemble the same, but you do not want to screw the nut off of the ball screw, the ball bearings will fall out and are a PITA to repack.
Nice machine, set up for manual/CNC, my machine is almost identical. The best of all possible worlds. No hand wheels shown in the picture, but it was originally equipped with hand wheels on the X and Y axis. That does appear to be a factory installation, they built a bunch of these in the '80's. These were built by Topwell in Taiwan and were imported under a number of different brand names.
Removal of the saddle is a bit of work. Remove the linear scales. Remove the X motor and housing from the table, remove the ball screw support brackets from both ends. Loosen the gibs, slide the table off to the left. The ball screw remains attached to the yoke. Be sure to support the table as you remove it. Now you can remove the ball nut and ball screw as a unit from the yoke.
It's roughly the same procedure to remove the saddle once the table is off the machine.
Jim Dawson
Sandy, Oregon, USA