Jerry, as far as rounding off the top and bottom edge of the platen to smooth things out, I did that inadvertantly. After screwing my D2 platen onto the angle iron piece, there were little nubs of the screws sticking out the front of the platen. All I did was put on a worn 60 grit belt backwards and run it for a few seconds. That took care of the protruding screws and slightly rounded the edges as well.
As for the smaller drive pulleys that slow down the machine, I have those too. But, I'm having a devil of a time figuring out how to take the original drive pulley off. I know it involves a hex wrench, and have loosened the hex screw, but the old pulley aint coming off. Am I doing something wrong, or do I need some kind of wheel puller to get this thing off? I am having a heck of a time grinding with accuracy since that belt is spinning at over 5000!
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Danbo, soul brother of Rambo