Quote:
Originally Posted by mura_gadi
Hello,
Thanks for the reply, was the need to tweak the puller more painful due to getting the puller adjusted correctly? Or the puller adjustment bolt needed adjusting frequently due to temperature drop? What sort of temperature variation/range did you encounter?
Did you release the tension after every session? Or see any issues if you had left the mirror tensioned for a period of time?
Thanks again
Steve
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Hi Steve,
This was a long time ago (and not long before the scope was stolen anyway!!!). From memory it was just one of those things that needed doing, along with checking collimation, after I had travelled somewhere and assembled the scope. No idea whether it was temperature changes affecting the bolt or the mirror, or both. I found it surprising how easily the view was affected by a tiny turn of the screw.
- and yes, I released the tension a bit after sessions.
If you have a full thickness pyrex mirror you might find things behave a bit differently.
All the best,
Dean