Lightbridge primary locking screws
Posted 06 February 2013 - 05:07 PM
Just a thought, but does anyone see a problem with me keeping my primary locking screws locked down after bringing the scope indoors after a few hours of using it outside?
It's just more convenient. The next time I take the scope out, only minor adjustments are required for good collimation.
...am I going to do any damage to the mirror do you think?
Posted 06 February 2013 - 05:46 PM
No harm will befall the mirror by keeping the locking screws in place and locked down.
Posted 06 February 2013 - 07:16 PM
Posted 06 February 2013 - 09:03 PM
I've thrown mine away. They are a real pain in the behind, always messes up collimation when you've just got it right. I used the ones on my 12" once and then threw them away. It holds collimation just fine without them, as long as I keep the springs tight by tightening the collimation bolts all the way down and loosen them just enough to collimate the primary.
I threw mine away too, and also have the springs on my 16" Lightbridge tightened all the way.
Posted 06 February 2013 - 11:42 PM
Posted 07 February 2013 - 12:01 AM
I never liked the idea of keeping the locking screws tightened after observing when I did use them, though. I always worried there would be some undue stress on the system that could lead to no good.
Posted 07 February 2013 - 04:11 AM
Posted 07 February 2013 - 03:58 PM
Posted 07 February 2013 - 07:53 PM
Attending RMSS 2011 the vibration from. ~400 mile trip caused the Collimation screws to unscrew and the springs to fall out.
So, now I install the lock screws whenever transporting the scope.
Posted 07 February 2013 - 10:12 PM
Posted 08 February 2013 - 05:21 PM
This way I have no mirror slop at all and setting up is even faster.
Posted 08 February 2013 - 06:28 PM
Posted 09 February 2013 - 04:32 AM
I didn't throw mine away. I've got them in my parts bin. I know, one day, I'll use them for something.
I haven't literally thrown mine away, I was speaking figuratively. I have a large case with "useful items" as well (read: lots of junk that I almost never, ever need again!)
But the locking screws can be used as spare collimation screws, in case a knob breaks or it unscrews during travel and get lost or whatever.
Posted 09 February 2013 - 09:26 AM
Snugging down the locking screws won't hurt the scope with normal temperature changes. But...
Posted 10 February 2013 - 03:41 PM