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Long focus Newt. Mount

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#1 torana68

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Posted 28 February 2020 - 06:52 PM

guys, this one is down here in Australia, not sure if it was made from a local kit or not. The mount is steel pier and plywood. It’s driven by a small hand wheel that runs a red rubber bush on the side of the pier, It can be left free or locked in place. Anyone remember seeing plans for something like this mount? Parts on the ‘scope date to 1960 or a bit before.

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Edited by torana68, 28 February 2020 - 08:18 PM.

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#2 CHASLX200

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Posted 28 February 2020 - 06:59 PM

Never saw anything like it.  Looks like a 6" F/13.



#3 Barlowbill

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Posted 28 February 2020 - 07:01 PM

I like it.  Simplicity galore


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#4 Bomber Bob

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Posted 28 February 2020 - 07:06 PM

Wow!  What is it, a 6" F12??


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#5 Kokatha man

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Posted 28 February 2020 - 07:18 PM

guys, this one is down here in Australia, not sure if it was made from a local kit or not. The mount is steel pier and plywood. It’s driven by a small hand wheel that runs a red rubber bush on the side of the pier, It can be left free or locked in place. Anyone remember seeing plans for something like this? Parts on the ‘scope date to 1960 or a bit before.

...saw your post on IIS yesterday, but reading it here just now my loony sense of humour interpreted one of your sentences as <"It’s driven by a small hand wheel that turns a red rubber band on the side of the pier"

 

That would be a novel drive system..!:rofl: 


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#6 torana68

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Posted 28 February 2020 - 07:20 PM

6” yes probably f12 or 13 and it’s the smaller of two I picked up 😁 this is the underside showing drive and three thingies that keep everything located on the pier.

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#7 Bomber Bob

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Posted 28 February 2020 - 07:23 PM

6” yes probably f12 or 13 and it’s the smaller of two I picked up this is the underside showing drive and three thingies that keep everything located on the pier.

Yes!  Potential Planet Killer Newt -- gotta like that!


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#8 Kokatha man

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Posted 28 February 2020 - 07:36 PM

ps: a bigger, clearer pikky of the last one you posted on IIS would be appreciated...that looks like a very interesting scope & mount! :) 



#9 torana68

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Posted 28 February 2020 - 07:43 PM

ps: a bigger, clearer pikky of the last one you posted on IIS would be appreciated...that looks like a very interesting scope & mount! smile.gif

The 8”?



#10 TOMDEY

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Posted 28 February 2020 - 08:01 PM

My 1st "serious" telescope was 6-inch F/12.5 Newt that I made as a kid. The planetary views were indeed spectacular! I've always been tempted to make another one of those.   Tom


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#11 Terra Nova

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Posted 28 February 2020 - 09:17 PM

When I was in high school and making my 6” F4.5 Newt back in 1966-67 I was using Thompson’s book as my guide. He had a chapter on making a 6” F12 Newtonian planetary telescope. That was going to be my next project. I finished the F4.5 that summer and then was off to college so it never happened. Then a few years ago I got all the parts together to make one from a Clearview Optics kit. I ran out of steam on that project and sold the kit and tubing to Max Falls here on CN. I’ll be happy enough to see it vicariously finished and enjoy hearing about Max’s results.


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#12 Kokatha man

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Posted 28 February 2020 - 09:27 PM

The 8”?

Probably - the very tall (almost to the ceiling of your shed) scope with what looks like a very interesting EQ mount next to it. :)



#13 torana68

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Posted 29 February 2020 - 06:04 PM

This is the “drive” on the top, the pivot the whole things rides on is the brass bit to the left. If this wasn’t a published design the original builder was one smart cookie.

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Edited by torana68, 29 February 2020 - 06:04 PM.


#14 AstroKerr

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Posted 29 February 2020 - 10:29 PM

Red bushing rides on the side of the pier - i like that.

The brass bit - brass shaft in wood or brass or? straight? conic? i really like that - berry box (mount) bushing drive.

The bushing, shaft and crank - those on a swing-arm? I mean, they would be (or should be), yeah? hellacool. add a spring. or gears and a chain. then again, maybe just a spring. fatter bushing fast, thin bushing slow. i really really like it. stuff like that never just comes to me - always need a hint. smart fellar indeed.

 

gorram love the scope - that's a true newt. long newt. serious newt - not some stubby truss woggle. yeah. good size, too. enough light, enough length. don't paint it white - blue on the tube, Aussie flags on the berry box.

 

what's on the alt axis? looks like a brake of some sort and pivot bolts? more pix, please.


Edited by AstroKerr, 29 February 2020 - 10:57 PM.


#15 torana68

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Posted 01 March 2020 - 01:01 AM

Ok here is a better photo of the underside, the red arrow points to the pivot point on top of pier. That goes against the brass bit previously mentioned, perhaps inspired by Jean Texereau? 

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Edited by torana68, 01 March 2020 - 01:01 AM.


#16 torana68

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Posted 02 March 2020 - 12:09 AM

Dismantling as I get moments, this is most of the metal work, the only parts not made by someone are the wood screws and the two slightly rusty hinges (oh and the Unitron finder mounts). All else is custom and machined from brass steel and aluminium .

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