Scope repair uk

[blinky]

At the weekend my WO ZS73 blew over, was mounted on an heq5, wind came out if nowhere as it was a decent day otherwise!

Anyway, it all seemed OK but on examination of stars that night, I seem to have very elongated stars at one side of the image.  I'm wondering if it's possible to contact somebody like ES Reid and have them take a look at it?

[Clarkey]

Blimey, that must have been some gust to do that. Have you checked your focuser alignment? It might be a simple job of realigning? (Far from my area of expertise, but I would check that first).

[blinky]

I don't know how you do that?

[bosun21]

7 minutes ago, blinky said:

I don't know how you do that?

You can place a well collimated laser in the focuser and check that the laser is hitting the centre of the objective. You can place a paper template over the objective with the centre spot marked on it 

[John]

As well as the focuser check mentioned above, once you have done that you can check for objective tilt using a cheshire collimator:

[blinky]

So.... Took everything apart again tonight - when it fell over the OAG came apart, in inspection tonight, there is a 1mm or so burr of metal that just pinged off.  Put it all back together and it seem to be performing as well as before.  Time will tell, only did a few test images and looked at the corners bit it seems a lot better