EQ6 Rebuild

[Rick]

The story I heard involved the individual using his pointer to light his fireworks on Guy Fawkes night... 

[Rocket Pooch]

Mike,

I did my re-build yesterday and took out that Egger worm, the shim size on my dec and ra we're exactly 1mm, all the components and faces we're exactly the same size.

Also, I replaced the RA & DEC bearings with sealed units made in Italy and removed the open Chineese bearings.

If it's clear this week I'll fully adjust it and measure the PE.

Chris

[Mike]

Well i'm in a bit of trouble with mine. The RA Worm wheel will not go back into the casing properly. It has to be forced in and when it is in it will not rotate, it's jammed solid.

The inside of the casing is very rough and I am wondering if the wheel has been rubbing against it in use, or maybe I have damaged it somehow in taking it apart. WHy they make the casing so tight is anyone's guess. I am going to try and sand out the inside of the casing to see if that will give that bit of extra room for the wheel to go back in. If I can't get it fixed in time for the weekend that I will be at DSC without any kit

Anyway, the forecast for the weekend at the moment is :-

Friday - Rain
Saturday - Rain
Sunday - Cloudy, maybe clear at night

Where did you order your bearings from?

[Rocket Pooch]

Mike,

If you want me to pop around this week and fix it let me know when.  Are you sure its the RA worm that's stuck, that would be impressive, or is it the big brass bit the work turns on?

Chris


P.S. I'll check about the bearings and let you know.

[Mike]

Yead i'd love some help if you don't mind.

It's the big brass wheel I am talking about. They give you about 0.01mm gap between the edge of the wheel and the casing so any tiny discrepency and it won't go in !

[Rocket Pooch]

http://www.youtube.com/watch?v=PnmkygmGNiM&eurl=http://timsastroblog.blogspot.com/2007/04/little-tune-up-for-eq6.html

Wii

[Mike]

Can't view that from work.      Will 'ave a butcher's when I get home.

[Mike]

Update!

Chris is working his magic and is confident something can be done to fix it. There is some damage to the worm and wheel but nothing major and shouldn't affect guiding. The casing might need a skim out on a lathe but he is trying to see if he can sand it down first as it only needs about 0.2mm off it.

Thanks for all your help Chris - I'll get you a nice bottle of single malt for DSC

[Ian]

of course, if you get your mount working, it'll attract the clouds like astronomers to a 16" RCX at Astrofest...

[Mike]

True