DJ - just insert the 2" collimator into the 2" focuser as per normal. GENTLY tighten the ring clamp on the focuser - barely tight enough to hold the collimator so that there's no obvious slop but so you can grab the collimator and twist it while it's sitting there. If you twist the collimator and the dot moves in a circle on the secondary then the beam isn't straight. So - in essence - do step 1 (adjust the secondary to get the dot in the primary's circle) and then twist the collimator gently. If the dot moves, let's discuss it at that point.
You've got a wee complex problem here because a) you have a MakNewt and b) you've replaced the focuser with a non-standard one. These two will add an extra dimension of variables for us to figure out.
Quote:
Originally Posted by DJVege
Yep. Thanks guys. Here's hoping the laser collimator is off.  Then we'll have found the culprit, and it means my collimating techniques are wrong with the cheshire! LoL.
Omaroo..what do you mean nip the clamp up tightly so that I can rotate the laser? Which clamp? What am I rotating? I thought I just put the collimator in, don't screw in the collimator to the 2" tube...and simply turn the whole laser collimator in the tube. Not right?
Which screws/clamps on the laser collimator can I play with? |