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i rechecked the tilt of my focuser last week. the method i did was pretty much the same. take secondary mirror and focuser out. measure the diameter of the focusing hole and find the center point. do the same thing opposite side of the tube and put a small dot. wack focuser and place laser into the focuser. (make sure your laser is accurate first). if the laser dot doesn't hit the opposite side dot, then the focuser needs abit of tilt.
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