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Originally Posted by RAJAH235
Eric, Please start by screwing all of them right down, till they bottom out, then BACK OFF 1 1/2 to 2 turns. (I say this to get as much tension on your springs as poss).
Provided the cell etc is manufactured acurately, the light path will be reasonably close to correct. (Know what I mean)?
From there, go step by step thru your collimation procedure again, starting with the centering of the focuser in the tube, the 2ndary in the centre of the focuser, (using a sheet of white paper on the opposite side of the tube to see what's going on), etc etc.
Just take your time with it..
HTH.  L. |
thanks for your reply. I have turned all 3 screws all the way down. I use a laser to collimate my primary mirror. 2 screws seem to be evenly turned while only one takes less turn . weirdd. thanks for the idea of the white sheet. i'll try that.