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Graham

New Scope. The strip down.

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Graham

Well it is finally here.

Stripped it down this morning so I can start the rebuild.

 

The RA drive gear.

This is actually solid bronze not that you can tell 😄

I am going to clean it up and polish it back to its former glory.

The White lump in the center is Teflon and is part of the limited slip clutch arrangement that allows the scope to be pushed into position but still allows the scope to be driven without slippage in the drive train.

 

IMG_0252.JPG?raw=1

 

 

The RA setting circle.

 

IMG_0254.JPG?raw=1

 

The mirror cell.

 

IMG_0256.JPG?raw=1

 

 

The Fork.

This nearly killed me moving it round to the back of my house 😅

 

IMG_0257.JPG?raw=1

 

 

The base plate.

This is constructed from 1 inch thick steel plate and weighs a veritable ton on its own.

 

IMG_0263.JPG?raw=1

 

 

The tube assembly.

 

IMG_0265.JPG?raw=1

 

 

Collateral damage.

This is the main central bearing that unfortunately did not survive the move.

Not too much of an issue as I was going to change it anyway.

 

IMG_0267.JPG?raw=1

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Alec

Looks like a lot of work, if you need anything grinding you cannot do yourself don’t hesitate to ask 

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Graham

Thanks Alec.

Should have it covered.

I will strip the bearings off the base plate and then take it to work for a shot blast and powder coating.

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Graham

Amazing the difference you can make with a 9 inch Bosch grinder fitted with a wire cup brush.

 

Before.

 

IMG_0252.JPG?raw=1

 

After.

 

IMG_0004.JPG?raw=1

 

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Tweedledee

Fantastic Graham. You have some real heavy metal to work on now. 👍

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Bino-viewer

Looking forward to following the restoration.

I'm sure the finished scope will look amazing and perform as such. 👍

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Smithysteve

Looks like a hard hat and safety boots site! I bet you have not stopped smiling 😊👍

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Ron Clarke

Looking forward to this build Graham 👍😊

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Bottletopburly

Well done Graham how’s the hernia 😂😂 lm sure it’s going to look special once completed , bet the neighbors were what the f###s  he got on that trailer  scud missle 😂

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Graham

Update.

 

Day one.

 

Spent most of the day removing 30 plus years of paint.

Still the powered wire brush doesn't take any prisoners and it is soon gone.

Just undercoated the counter weight balance bar so I can top coat it tomorrow to see if I like the colour.  

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Graham

Day Two

 

Spent the morning making up an adapter so I can upgrade the focuser to my Revelation duel speed focuser.

 

DSC_0125.JPG?raw=1

 

On the scope

 

DSC_0127.JPG?raw=1

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Doc

A man always need a project and this is a massive one. I bet it will look excellent once it's done. Looking ast the photo's it looks a pretty simple set up, just very bulky.

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BAZ

I'll bet anyone a Mars Bar this will be getting first light before Christmas at the pace Graham's going at!   🔩🔨🔨📏🔧

Edited by BAZ

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Ron Clarke

I'll take that bet Martyn!! 👍🛠️

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Graham

I fully intend to have it up and running by the end of the month 

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Rusty Strings

Any danger of it making an appearance at Kelling?

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philjay

Looking good Graham, nice to see an old scope being brought back to life. I like the circles, good ole lettraset from the looks of it

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Tweedledee
2 hours ago, Rusty Strings said:

Any danger of it making an appearance at Kelling?

Like this maybe... 🙂

Fassi_loader_crane_unloading_AST3-1_tele

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Graham

Thats about the only way it would make it.

 

Spent another couple of hours with the power brush this evening.

Just about got all the paint off the fork.

Another go tomorrow will finish it.

Off to Galvoptics with the mirror in the morning.

Then the local bearing suppliers to get a new main bearing.

Edited by Graham

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Graham

DAY THREE

 

Went down to Galvoptics this morning with the mirror.

To see how much the Aluminium coating had deteriorated since Galvoptics originally did it back in 1984 we put it on a light table shiny side up.

I wish I had taken a photo of it as there were that many holes in the coating where the light shone through it looked like the front of the mirror was covered in a lace curtain.

Left it with them for a strip down and a nice new shiny coat.

Hopefully I can go and collect it next Monday.

 

Went to my local bearing suppliers and got a new main bearing for the fork.

 

Then spent another couple of hours getting the paint off the forks.

Finally got it finished.

Gave it a bath in White Spirits to get it totally clean.

Once that has dried I will give it a coat of undercoat this afternoon.

 

DSC_0128.JPG?raw=1 

 

 

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Smithysteve

Do you need four candles?  🎂

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Bino-viewer

Thats come up a treat.

And what great weather to work in. (hope i've not cursed it now....😀)

 

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Graham

Thanks folks.

Its been hard graft but it has been worth it.

Matters not Rob as I have to go back to work in the morning.

 

Managed to get a second coat of undercoat on it this evening.

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