Jump to content


Maybe stupid, but excuse my caution.

Recommended Posts

I have a Celestron Nexstar 8SE and want to replace the finder scope. I've acquired a new dovetail so that I can fix the finder to the OTA. This requires me to remove the existing dovetail which carries the red dot finder. My question is, when I undo the screws that hold the dovetail, are there nuts on the other side which will fall off and get loadged behind the mirror? I'm worried about breaking something. :(

Link to comment
Share on other sites

You wouldn't be the first person to have unscrewed something from a sealed tube scope and heard the nut fall into the tube :(

Without any doubt asking the question was the right thing to do.

Sounds like you're going to be OK though...!



Link to comment
Share on other sites

Thanks for the confirmation Peter. I figured it was probably safe, but noticed that among the various (excessive number) of bolts supplied with the new dovetail a couple had nuts on. Will let you know if it all goes horribly wrong!

Link to comment
Share on other sites

Two things.

Make sure the bolts you use have the correct thread by gently screwing them in by hand first. It would be easy to strip the aluminium threads in the scope with a steel bolt with the wrong thread.

Make sure the bolts aren't long enough to foul your primary mirror. Keep checking as you screw them in by looking through the corrector. You should see the bolts if they start poking through the inside of the casing.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.