Jump to content


collimation screws issue

Recommended Posts

hi i recently contacted this forum with problems setting up my 10 inch skywatcher classic dob. telescope.luckily i found a local astronomer who helped me with it.i still have a problem however with the collimation screws on the primary mirror.i think because the tube had been damaged and is still not perfectly round,one of the studs on the mirror is fouling on the side of the hole,and the knurled end just unscrews without moving the mirror.so effectively i only have 2 screws to collimate.the only fix i can see is to drill the holes slightly larger and put thin washers on the spring side{i already have them on the outside}to stop the springs fouling in the bigger holes.has anyone come across this problem and would you agree with me,i would really appreciate advice before going ahead.


            thanks,john willis

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.