406mm F4.5 String Truss Dob Project

[stringscope (Ian)]

Had a great time at the SPSP. Mechanicaly the scope performed quite well, better than I expected. Mark Suchting very kindly had a look at the primary mirror issue, turns out it is over corrected (I had my inside/outside focus mixed up ), so on Sunday, the mirror was removed and handed over to Mark for optical bench testing, polishing, re-figuring and re-coating. Should be great when I get it back . Oh well I shold be able to finish the electrics and make a couple of minor mods to the rocker box while I am waiting.

Unfortunately, I spent some time looking through Mark's binoscope, I wish I hadn't , it is just awsome . I have got to build one

Cheers,

[skies2clear]

I can only imagine what it was like looking thru Marks binoscope. Also toying with the idea.

Good to hear you found out what was going on with the mirror. In Mark's hands, you'll be guaranteed of a premium optic. I bet you can't wait to get it all together now!

Clear skies

[Starkler (Geoff)]

Originally Posted by stringscope

so on Sunday, the mirror was removed and handed over to Mark for optical bench testing, polishing, re-figuring and re-coating. Should be great when I get it back .

At least when you get it back you will know it will be as good as any other mirror you could buy May i ask the origin of your mirror?

Unfortunately, I spent some time looking through Mark's binoscope, I wish I hadn't

Unfortunately
I would love to have a look but it sounds like a plot to sell more mirrors

[stringscope (Ian)]

Hi Geoff,

The mirror is an old Meade unit. I believe about 20yo. I anticipated some optical drama and didn't pay much for it.

Cheers,