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I think i have solved the stiction problem cheap and easy. As i mentioned earlier, you need a system to vary the pressure between the top and bottom boards. Instead of just plastic spacers,a couple of rubber O-rings with plastic shims either side of the O-rings works just great. If you place the first O-ring around the thin tube surrounding the centre bolt, and the second O-ring, of the same thickness but larger around the first, and the thickness of the rings about the same as the space between the boards,experimenting with the number of plastic shims to get the right lift,easing the pressure on the teflon pads. No More Stiction !!!.
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