Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Recommended Posts

i have recently found i have to collimate my skywatcher heritage 130p scope...got my collimation laser...i just need to find out the size of the allen key i need..its very small..i am thinking 2mm? more? if any one could be kind enough to let me know about such a simple little problem i will be most gratefull thank you. :smiley:

Share this post


Link to post
Share on other sites

I'm sure someone will soon tell you the size, but for the price of a set of allen keys they are always very useful to have.

Share this post


Link to post
Share on other sites

i have recently found i have to collimate my skywatcher heritage 130p scope...got my collimation laser...i just need to find out the size of the allen key i need..its very small..i am thinking 2mm? more? if any one could be kind enough to let me know about such a simple little problem i will be most gratefull thank you. :smiley:

make sure you place the laser on something, so that you can rotate the laser? By checking this, you will save yourself some hassle later. You need to be able to hold the laser tube in something  'V' shaped, to allow some rotation. Switch the Laser on and shine the beam onto a piece of paper stuck to the wall at about 10-18 feet away. As you rotate the Laser, the dot should stay stationary to a single point on the wall. If it draws anything else, the laser needs to be calibrated first.

If it needs calibration, the adjusters are normally hidden under 3 silicon inserts, which have to be removed to allow adjustment. This will probably affect a warranty!

Edited by Charic

Share this post


Link to post
Share on other sites

I'm pretty sure they're 2mm - but as Paul says, no home should be without a set of Allen keys...

Share this post


Link to post
Share on other sites

Off top of my head I think it is 2mm. As said. no home should be without a set, they are handy for so many things :smiley:  . As a point of note though if you have a sight tube and combination tool. I use that for the secondary and double check it against the laser. You may want to be aware  of some of the pitfalls of single beam laser collimation  and how you can end up getting it wrong.

 

http://www.youtube.com/watch?v=MTyyG8nuDOA]http://www.youtube.com/watch?v=MTyyG8nuDOA]http://www.youtube.com/watch?v=MTyyG8nuDOA]http://www.youtube.com/watch?v=MTyyG8nuDOA

Edited by AlexB67

Share this post


Link to post
Share on other sites

That video series is invaluable. The tip about putting coloured card opposite the focuser and masking the secondary is absolutely critical. I thought my collimation was fine until I did the masking, but that showed my shiny new MoonLite focuser was not at all square.

Sent from my GT-N7105 using Tapatalk

Share this post


Link to post
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

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.