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What did you do to your Scope/Mount Today?

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6358 replies to this topic

#3076 Esso2112

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Posted 26 November 2017 - 06:13 PM

Today I got an original Unitron electric clock drive attached and working on my Unitron 152 (now a 152c). Had to drill out and tap the RA wheel that came with the clock drive to fit the larger shaft on the older mount.  Original solid RA wheel untouched this way and I can go back to all original configuration by just taking the newer wheel off and putting the original back on. I was a little nervous working on the clock drive wheel because I only had the one. Everything works nicely.  

 

I also replaced the focuser tube rack and the pinion shaft on my 114.  The original tube was worn down to the brass on top where the stop screw slot is.  Too much play.  I picked up an unused focuser for a 3" Unitron and stole the tube out of it.  The grooves don't go all the way around like mine did and they are much more angled. Because of this, I had to use the newer pinion shaft and knobs.  It is nice to have knobs on both sides, though. The focuser is now smooth as butter and the 114 is now set up as my grab n go scope with its alt-az mount.  


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#3077 clamchip

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Posted 30 November 2017 - 05:34 PM

I thought since its winter and also I thought how nice it would be to have a powder coated

tube, no off gassing to worry about and I could assemble almost right away I decided to look

into having it done to a 4 inch aluminum tube 5 feet long.

They can do the outside for around $160, but no one can do the inside, I got this from 2 local

powder coaters. They can't get the powder down the long tubebawling.gif

 

Robert


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#3078 TSSClay

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Posted 30 November 2017 - 08:10 PM

Robert,

 

I baffled my powder coated tube.  Worked a treat.  I made a baffle stack held in position using nylon threaded rod and  positioned this to eliminate stray light.

 

Clay



#3079 clamchip

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Posted 30 November 2017 - 08:26 PM

I'll probably do that.

My plan on this one was powder coat interior flat black and have one baffle in the middle of the 

tube I can slide in place and be observing in a jiffy since the powder coat is baked it probably

doesn't off gas at all. 

Its this Edmund 4 inch I built from parts many years ago, the unpainted one:

Robert 

 

post-50896-0-77257700-1467583365_thumb.jpg


Edited by actionhac, 30 November 2017 - 08:38 PM.

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#3080 TSSClay

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Posted 01 December 2017 - 07:53 AM

I agree that, being baked on, it probably does not out-gas.  With powder Coat you have to take the thickness of the coat into consideration.  PC tends to be quite thick making things that have to fit inside the tube too tight to work after powder coat.  For my 6" f10 I asked them to mask the inside of the tube to allow my cell and focuser tailpiece to fit correctly.

 

baffle stack.jpg

 

This baffle stack construction seems to work quite well leaving the inside bare of paint.

 

Clay


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#3081 Bigern

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Posted 01 December 2017 - 03:13 PM

Mounted a green laser on the C90 and Tasco 11TR. 

 

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#3082 clamchip

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Posted 01 December 2017 - 08:42 PM

I've given my poor old Lava lamp a new life as a Newton's ring checker for long refractors.

This is my Edmund 4 inch and if you try and hold the tube vertical under a florescent light its

a little to long.

So I kept the base of my poor old Lava lamp and screwed a compact florescent bulb in it.

Now I check the lens with the scope on the bench, and for my purpose having the tube

horizontal will give me the information I'm looking for better than a vertical tube.

I'm getting the Edmund ready for some winter observing and wanted to make sure the lens

retainer is adjusted properly. I like it loose enough for a slight rattle but not too loose because then

the air space can flop around uneven and really spoil your evening.

Never throw anything out.

Robert

 

IMG_8213.jpg


Edited by actionhac, 01 December 2017 - 08:46 PM.

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#3083 clamchip

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Posted 05 December 2017 - 07:44 PM

Today I am cleaning a Edmund 6X23mm finder.

This finder goes way back into the 1950's, and clear up into the Edmund red tube era.

In continuous production all that time, and by the same contractor, circle T, as far as I can tell.

Although small in aperture, its gigantic in quality.

Unfortunately the eyepiece needed to be disassembled. 

My spanner wrench is too large to remove the retaining ring, so I was trying to unscrew it 

with a tooth pick and other assorted things when nurse Mendy made me a sheet metal tool

cut exactly the right width to fit in the retaining ring's slot, as she is demonstrating in the

photos. Thanks Mendy, I Love You!

 

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Edited by actionhac, 05 December 2017 - 07:51 PM.

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#3084 roscoe

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Posted 05 December 2017 - 08:03 PM

That's quite a gal, that Nurse Mendy!!

 

For those of you without a Nurse on call, her sheet-metal idea is a good one, and also a pair of dividers with the sharp points filed or ground off just a bit can be made to work pretty well, too.


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#3085 clamchip

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Posted 05 December 2017 - 09:49 PM

That's quite a gal, that Nurse Mendy!!

 

For those of you without a Nurse on call, her sheet-metal idea is a good one, and also a pair of dividers with the sharp points filed or ground off just a bit can be made to work pretty well, too.

The dividers idea is great! thanks I'll remember that!

 

Robert


Edited by actionhac, 05 December 2017 - 09:50 PM.


#3086 Bomber Bob

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Posted 06 December 2017 - 09:50 PM

Thanks to Glenn, my 1976 C5 Astro has a tabletop wedge:

 

C5 Astro Restore S22 (Tabletop Wedge).jpg

 

Rather than make some Fred Sanford contraption, I splurged and got an OEM solution.  It has the slots in the bottom for tripod attachment, and I held on to a vintage Meade field model, so she's all set to point & track -- just as she did 40+ years ago...


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#3087 mitsos68

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Posted 07 December 2017 - 12:33 AM

Hi,

since I live in an apartment, I had to assemble ad hoc the large heavy Polarex tripod in my balcony when my 102mm refractor used.

Inspired by the old Celestron C100E (https://www.cloudyni...00#entry7699849) , theTasco 20TE pier (https://www.cloudyni...hl= tasco 20te)   and by this article:  https://www.cloudyni...tron-bino-pier/ , I assembled a pier for my telescope using an aftermarket EQ5 pedestal and two EQ5 half piers. The required EQ5 to Polarex mount adapter was custom fabricated from a solid steel block at a local CNC shop. All three parts are rigidly assembled using the provided screws and bolts. I had only to remove the ball bearing washers under the main bolts (the used to connect the pier/half pier) to the EQ5 equatorial heads).

The result is a nice yet functional pedestal for my refractor.

 

Regards

Dimitris 

Athens-Greece.

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Edited by mitsos68, 07 December 2017 - 07:19 AM.

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#3088 TOM KIEHL

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Posted 09 December 2017 - 10:20 PM

I finished the C.C,Young mount today . Now on to the OTA
 
More pictures in my thread for this project .....Here >>>   https://www.cloudyni...aker/?p=8263115

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#3089 deSitter

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Posted 10 December 2017 - 05:07 PM

Thanks Gary for the illuminator - I reversibly upgraded it to a red 3v LED which is much better on the batteries and the eyes!

 

-drl

 

 

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#3090 Esso2112

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Posted 11 December 2017 - 08:16 PM

Tonight, I completed the upgrades to my Unitron 152.  Replaced the original focuser with a super focuser.  Added the 60x700mm guidescope and counterweight bar.  Conversion to a photo-equatorial complete.  I do have the 220 camera as well.  Thanks a bunch to someone on this forum for helping make this happen.  The really nice thing is that it can always go back to completely original in a short amount of time.  I love that the Unitron accessories require no drilling to add additions. 

 

image.jpeg


Edited by Esso2112, 11 December 2017 - 08:18 PM.

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#3091 Terra Nova

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Posted 12 December 2017 - 10:36 AM

Tonight, I completed the upgrades to my Unitron 152.  Replaced the original focuser with a super focuser.  Added the 60x700mm guidescope and counterweight bar.  Conversion to a photo-equatorial complete.  I do have the 220 camera as well.  Thanks a bunch to someone on this forum for helping make this happen.  The really nice thing is that it can always go back to completely original in a short amount of time.  I love that the Unitron accessories require no drilling to add additions. 

 

attachicon.gifimage.jpeg

Looks great! You now have a 155! ;)


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#3092 Esso2112

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Posted 12 December 2017 - 11:07 AM

 

Tonight, I completed the upgrades to my Unitron 152.  Replaced the original focuser with a super focuser.  Added the 60x700mm guidescope and counterweight bar.  Conversion to a photo-equatorial complete.  I do have the 220 camera as well.  Thanks a bunch to someone on this forum for helping make this happen.  The really nice thing is that it can always go back to completely original in a short amount of time.  I love that the Unitron accessories require no drilling to add additions. 

 

attachicon.gifimage.jpeg

Looks great! You now have a 155! wink.gif

 

Thanks Terra. Yes, it’s now a 155 with a pre-155 main scope. Just waiting on a super unihex. To arrive and then it’s good to go. 


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#3093 Garyth64

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Posted 12 December 2017 - 05:20 PM

Tonight, I completed the upgrades to my Unitron 152.  Replaced the original focuser with a super focuser.  Added the 60x700mm guidescope and counterweight bar.  Conversion to a photo-equatorial complete.  I do have the 220 camera as well.  Thanks a bunch to someone on this forum for helping make this happen.  The really nice thing is that it can always go back to completely original in a short amount of time.  I love that the Unitron accessories require no drilling to add additions. 

 

attachicon.gifimage.jpeg

That is just awesome!


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#3094 akman1955

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Posted 12 December 2017 - 06:26 PM

smile.gif Hey what is this dusty Orion mount call with polar finder and years made?? It was out in my shed for yearsbelushi.gif

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#3095 deSitter

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Posted 12 December 2017 - 07:16 PM

That's the Hammerview OTC

 

-drl



#3096 akman1955

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Posted 12 December 2017 - 07:22 PM

That's the Hammerview OTC

 

-drl

????



#3097 deSitter

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Posted 12 December 2017 - 07:59 PM

 

That's the Hammerview OTC

 

-drl

????

 

Sorry not a fan of Orion's hammertone finishes nor their naming schemes. "Skyview" "Edge On" "Versa-Go" - all bad!

 

-drl



#3098 roscoe

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Posted 12 December 2017 - 08:21 PM

If I have the story right, back in the dayu, Orion used to get stuff from Guan Sheng optical, not Synta.

 

I think that mount is from that era.  It might be marginally better than the Syntas ( Guan Sheng's scopes were.....)


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#3099 DreamWeaver

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Posted 12 December 2017 - 08:46 PM

Is it this one?  This is from their June 2000 website.

 

Edit:  Disregard the link.  My iPad and the Wayback Machine website aren't getting along tonight.


Edited by DreamWeaver, 12 December 2017 - 09:48 PM.


#3100 deSitter

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Posted 12 December 2017 - 09:12 PM

blush.gif so what you saying?? piece oh crap??flowerred.gif heavy as hell. Date made?? I guess I should throw it in the fairbanks dump?? according to you guys?????

Yeah, it sort of defines cheap and Chinese. It looks cheap, it performs cheap, it is cheap.

 

-drl




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