Finally got around to modifying my 12" sander this weekend... I always had a problem with the table not being truly flat and also moving on me... Very frustrating and a waste of time checking the pieces for exact 90*, tapping on the table to adjust it and having less than satisfactory results....
Not No MO..!!!! I built a plywood frame, sat the whole sander in it, screwed it all down to the work top and screwed a 1 1/4" thick piece of granite to the frame... A couple of shims with some aluminum tape and I got a perfect 90* angle all the way across the sanding table... Not to mention that I extended the left side of the table a good 5" or so... Now I have a lot more room on the working side of the table...
I am One Happy Camper...
That is a makeshift 15" riser block sitting on the table to test for squareness... It shows how much room I have on that side of the table for sanding risers and such...
It seems I have had to modify or tweak everyone of my major tools to get them to be accurate...