I was ponding today why nobody has tried a different setup for a dob. Instead of having the 2 large altitude bearings, have one of the large altidude bearings on one side, and on the other a single point, pivot, or bearing. I figure if you are resting the weight of the OTA on 4 points in the altitude, and suppose that one of your teflon pads wears faster than the rest, what will result is your scope tilting to one side to compensate for the wear. Why not use the inherent stability of 3 points in the altitude...much like a tripod, or the 3 points of contact used in the az bearing. I figure someone must have thought of that by now (I looked, but didn't find it) unless there was a reason why it would not work (I can't think of one). Some input would be greatly appreciated as to why this setup would or would not work. Thanks!
Evan
Evan