Quote:...yesterday I had good mirror clips showing and was chasing the doughnut a little. I must have done something last night before I retired because today all I have been doing is chasing mirror clips. I can get them to the very edge of my secondary with only a tad of each showing and thats it.
Quote:If at that point if I try to use the tilt screws to try centering my doughnut I will definitly lose the mirror clips. This thing (I call Goliath )has got me headed to the funny farm.
Quote:....My spider vanes are all equal,my mirror clips stand proud even when focuser is racked at its highest position,the secondary is dead centered in the view and the doughnut is dead center on the back black dot created by the collimation caps peep hole...I will double check it with the cheshire to be sure. You had mention in an earlier post that for this step I do not need to use an extension...
XT10 classic with premium optics Tri-knob CR2 focuser
Catseye + Glatter collimation tools
StarBlast 4.5" & 6"
Round Table Platform
Quote:...If my newt 2ndary is perfectly centered (even from the standpoint of correct offset) and has a perfect (45*) tilt as well, are you (Vic and Jason) saying that the primary center spot will be centered under my cheshire cross-hairs - even if the 2ndary rotation is off?
Quote:Everything but the 2ndary rotation is "spot on", and the primary center will line up under the cheshire cross-hairs, even though the 2ndary rotation is off? If that is so, then only misalignment of the focuser axis itself would be the cause of any error between the cross-hairs and the primary center!
Quote:...I'm going to have to cogitate on this and re-read this whole thread. Somewhere in the earlier comments led me to think (you or Vic?) were saying that the cross-hair alignment with primary center would not change even as the 2ndary is rotated on its stalk.