Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

The arrival of a Questar 7

  • Please log in to reply
250 replies to this topic

#201 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 11 September 2020 - 08:26 AM

1 looks good on my monitor

 

Dave

That is what I am thinking also.   Thanks for the input.



#202 Kasmos

Kasmos

    Gemini

  • *****
  • Posts: 3,084
  • Joined: 19 Aug 2015
  • Loc: So Cal

Posted 11 September 2020 - 04:16 PM

The first one looks like a pretty good match. I'll bet if you used either one and posted photos of the finished scope, without something to compare it with, nobody would know the difference or know it was painted. Especially since different cameras and computers have different color biases.

 

As you may know, It's only the pros or those who have the equipment that use two or more colors for candies and pearls. Typically a silver or gold base with one  transparent color over it with the amount of coats varied to achieve the darkness they desire. Finished with a clear coat for gloss and depth.

 

That said,wasn't it stated earlier that the original Questar color is anodized?

 

BTW, What brand is the second color? I ask since I have a non telescope project that needs a bluer purple like that.


  • Terra Nova likes this

#203 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 11 September 2020 - 07:06 PM

the second color is this

 

https://www.amazon.c...0?ie=UTF8&psc=1


  • Kasmos likes this

#204 tim53

tim53

    Hubble

  • *****
  • Posts: 15,140
  • Joined: 17 Dec 2004
  • Loc: Highland Park, CA

Posted 12 September 2020 - 11:43 AM

That is what I am thinking also.   Thanks for the input.

I’m reminded of some of the amazing creations that Gerry Logan would bring up to RTMC.  One year he showed me a notebook of photographs of his scopes under construction.  Some had mirror cells that looked like castings crossed between Celestron’s and questar’s. But when he showed them under construction, they were made of wood, fiberglass, and bonds, and were painted to look like cast metal pieces.  Id’t be interesting to see someone mimic a metal anodized tube using soon tube or phenolic as the base, or even a scratch-built fiberglass or veneer tube.  

 

-Tim.



#205 SandyHouTex

SandyHouTex

    Fly Me to the Moon

  • *****
  • Posts: 5,015
  • Joined: 02 Jun 2009
  • Loc: Houston, Texas, USA

Posted 12 September 2020 - 05:42 PM

Here’s a video on fixing stone chip on a car finish:

 

https://www.youtube....h?v=h3dRxPyPzxA

 

It might work to fill the divots you have.



#206 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 12 September 2020 - 07:27 PM

Here’s a video on fixing stone chip on a car finish:

 

https://www.youtube....h?v=h3dRxPyPzxA

 

It might work to fill the divots you have.

these blems are not paint chips the OTA has.  It is where the salt water has eaten away the paint and then put little pot holes into the aluminum skin.  I am filling them in and repainting the whole tube.  


  • Mr Magoo, mattyfatz, SandyHouTex and 1 other like this

#207 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 23,114
  • Joined: 29 May 2012
  • Loc: Northern Kentucky

Posted 13 September 2020 - 11:06 AM

these blems are not paint chips the OTA has.  It is where the salt water has eaten away the paint and then put little pot holes into the aluminum skin.  I am filling them in and repainting the whole tube.  

I bet you could get a wonderful and very durable paint job that would closely match the original color if you took it to a custom auto paint and body shop.


  • tim53, mattyfatz, John Higbee and 1 other like this

#208 SandyHouTex

SandyHouTex

    Fly Me to the Moon

  • *****
  • Posts: 5,015
  • Joined: 02 Jun 2009
  • Loc: Houston, Texas, USA

Posted 13 September 2020 - 12:26 PM

I bet you could get a wonderful and very durable paint job that would closely match the original color if you took it to a custom auto paint and body shop.

True.  They’re pros at repairing chips and dings.  If I recall there is something they can do called “leading” I think.  They use it to restore cars with corrosion.  Although I’m not sure if it would work with aluminum.


  • Terra Nova likes this

#209 Kasmos

Kasmos

    Gemini

  • *****
  • Posts: 3,084
  • Joined: 19 Aug 2015
  • Loc: So Cal

Posted 13 September 2020 - 01:28 PM

Leading was done with molten lead so almost nobody does it any more. It was used as a body filler to smooth out damage or customize the shape of a car before products like Bondo were developed. There is probably not one single commercial shop that will even do it. The few people that do it are hard core old school custom car guys who do things the traditional way. It's where the term Lead Sed came from.  

 

https://en.wikipedia.../wiki/Lead_sled

 

As for a body shop painting it. The cost of paint for custom candies and pearls is very high. One pint of the base color is usually about $100 or more. First it would be prepted and primed, then a base of silver, followed by the color and clear coat. 


Edited by Kasmos, 13 September 2020 - 01:36 PM.

  • mattyfatz, Terra Nova and rcwolpert like this

#210 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 23,114
  • Joined: 29 May 2012
  • Loc: Northern Kentucky

Posted 13 September 2020 - 02:05 PM

As for a body shop painting it. The cost of paint for custom candies and pearls is very high. One pint of the base color is usually about $100 or more. First it would be prepted and primed, then a base of silver, followed by the color and clear coat. 

Considering how much a Questar 7 normally cost tho, if someone got one for a very good deal, I would think a few hundred for a perfect durable custom paint job with all pits filled and smoothed would be well worth it.


  • mattyfatz and SandyHouTex like this

#211 Kasmos

Kasmos

    Gemini

  • *****
  • Posts: 3,084
  • Joined: 19 Aug 2015
  • Loc: So Cal

Posted 13 September 2020 - 02:16 PM

Considering how much a Questar 7 normally cost tho, if someone got one for a very good deal, I would think a few hundred for a perfect durable custom paint job with all pits filled and smoothed would be well worth it.

True. I had the impression that Johann was trying to do things himself and keep costs down.

 

I also agree that a professional paint job would be more durable as in less prone to future chipping.


  • mattyfatz and Terra Nova like this

#212 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 13 September 2020 - 05:07 PM

True. I had the impression that Johann was trying to do things himself and keep costs down.

 

I also agree that a professional paint job would be more durable as in less prone to future chipping.

you guys do have a good point.  I did get it for peanuts so spending a few hundred bucks is well worth it.  Money is not the issue.  However, I have always enjoyed doing things like this myself.   We will see where this goes and at what point I give up trying to paint the tube myself.  Painting the tube is the last stage before putting it back together. 


Edited by starman876, 13 September 2020 - 05:08 PM.

  • Mr Magoo and Terra Nova like this

#213 clamchip

clamchip

    Voyager 1

  • *****
  • Posts: 10,822
  • Joined: 09 Aug 2008
  • Loc: Seattle

Posted 13 September 2020 - 06:35 PM

How about a Ed Roth Purple Kit for professional results:

https://rothmetalfla...t-br-purple-kit

And here's how to get that professional job step-by-step, scroll down to

"Rattle Bomb Basics" in here:

https://rothmetalfla...es/roth-academy

 

Robert


Edited by clamchip, 13 September 2020 - 06:49 PM.


#214 mattyfatz

mattyfatz

    Gemini

  • *****
  • Posts: 3,304
  • Joined: 27 Dec 2006
  • Loc: Boise Idaho

Posted 13 September 2020 - 11:37 PM

Somewhere in the archives, there’s some pics of Preston Smiths’s Tasco overhauls. He found a powder coating shop north of Philadelphia that did some amazing stuff.  I’m sure a place like that could come pretty close to matching the Questar original.



#215 mattyfatz

mattyfatz

    Gemini

  • *****
  • Posts: 3,304
  • Joined: 27 Dec 2006
  • Loc: Boise Idaho

Posted 13 September 2020 - 11:42 PM

 

Here we go....



#216 Kasmos

Kasmos

    Gemini

  • *****
  • Posts: 3,084
  • Joined: 19 Aug 2015
  • Loc: So Cal

Posted 13 September 2020 - 11:58 PM

you guys do have a good point.  I did get it for peanuts so spending a few hundred bucks is well worth it.  Money is not the issue.  However, I have always enjoyed doing things like this myself.   We will see where this goes and at what point I give up trying to paint the tube myself.  Painting the tube is the last stage before putting it back together. 

 "I had the impression that Johann was trying to do things himself and keep costs down"

 

I should have emphasized the DIY part when I made the above post. I totally get that, sometimes stubbornly so....

 

...ask my better half. grin.gif


Edited by Kasmos, 13 September 2020 - 11:58 PM.


#217 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 14 September 2020 - 08:40 AM

 "I had the impression that Johann was trying to do things himself and keep costs down"

 

I should have emphasized the DIY part when I made the above post. I totally get that, sometimes stubbornly so....

 

...ask my better half. grin.gif

restoring this Q7 has become a labor of love.   I have always loved taking something that most people would give up on and restoring it to look almost new. 


  • tim53, SandyHouTex, Terra Nova and 2 others like this

#218 macdonjh

macdonjh

    Fly Me to the Moon

  • *****
  • Posts: 5,970
  • Joined: 06 Mar 2006

Posted 14 September 2020 - 01:31 PM

The most recent "preserve" versus "restore" versus "modify" discussion I know of is in Peter Ceravolo's Cooke refractor thread.  I think he's doing a bit of "preserve" but also a bit of "restore" because some of the parts of his scope are in too poor condition to be preserved.  What he is staying away from in his project is "modify".  But that's his project.  Not that my opinion matters, since this is starman876's project and as SteveGR observed, "his scope, his rules", but I'd be all for modifications.  Questars are reasonably rare, but to me they are more like Harley-Davidsons than historical antiques.  Expensive because of how they are made, cachet because of their exclusivity, and ready for customizing.  

 

I don't know about flames, though.  Now, racing stripes...  smile.gif


Edited by macdonjh, 14 September 2020 - 01:34 PM.

  • Terra Nova likes this

#219 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 14 September 2020 - 06:42 PM

The most recent "preserve" versus "restore" versus "modify" discussion I know of is in Peter Ceravolo's Cooke refractor thread.  I think he's doing a bit of "preserve" but also a bit of "restore" because some of the parts of his scope are in too poor condition to be preserved.  What he is staying away from in his project is "modify".  But that's his project.  Not that my opinion matters, since this is starman876's project and as SteveGR observed, "his scope, his rules", but I'd be all for modifications.  Questars are reasonably rare, but to me they are more like Harley-Davidsons than historical antiques.  Expensive because of how they are made, cachet because of their exclusivity, and ready for customizing.  

 

I don't know about flames, though.  Now, racing stripes...  smile.gif

It is frustrating painting the tube.  I can see why they anodize a sheet and then wrap it around the tube.  I have to be very careful not to get any purple paint inside the OTA.  It is such a pretty velvet black.  



#220 RichA

RichA

    Vanguard

  • *****
  • Posts: 2,239
  • Joined: 03 Jun 2010
  • Loc: Toronto, Canada

Posted 14 September 2020 - 07:34 PM

One paint won't do. The original is a two-colour paint job - a metallic blue was the first coat, with a transparent pink as the second coat. Pink on blue produces the purple appearance. There are specialist metallic paint companies that supply these. The range of colours is quite limited and a good paint shop would be able to identify the original colours - and duplicate the effect.

The tube also would display a tiger-stripe effect at certain angles in strong light.



#221 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 14 September 2020 - 10:06 PM

The tube also would display a tiger-stripe effect at certain angles in strong light.

considering the tube wrap is anodized I think the two tone paint is a no show.



#222 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 19 September 2020 - 04:56 PM

well, I sanded the tube again and now it is in primer ready for paint.  Was to cold to paint today, but tomorrow will be warmer.  I have seen these new powder coat guns for sale anyone use one yet?  

 

https://www.amazon.c...00552563&sr=8-8

 

also for sale direct from eastwood for $50 less

 

https://www.eastwood...powder-gun.html


Edited by starman876, 19 September 2020 - 04:58 PM.


#223 Bomber Bob

Bomber Bob

    Hubble

  • *****
  • Posts: 17,969
  • Joined: 09 Jul 2013
  • Loc: The Swamp, USA

Posted 19 September 2020 - 06:11 PM

Maybe I missed it, Johann... but, what about having someone powder-coat the tube?

 

JD matched the Mogey Gray 1st, then the English Racing Green, both from photos that I emailed him.



#224 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • topic starter
  • Posts: 22,297
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 19 September 2020 - 08:06 PM

Maybe I missed it, Johann... but, what about having someone powder-coat the tube?

 

JD matched the Mogey Gray 1st, then the English Racing Green, both from photos that I emailed him.

Having someone else do it takes all the self satisfaction away.  Last resort.   Interesting while I was checking out powder coating they sell an aliminum paste to fill imperfections.  Aluminum still allows for power coating.   The one thing that worries me is the interior velvet black paint.  I have to see if it can take the heat from having to bake the powder coat after it is applied to the OTA.  I would hate to have to clean that interior paint if the heat makes it bubble up.  


Edited by starman876, 19 September 2020 - 08:07 PM.


#225 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 23,114
  • Joined: 29 May 2012
  • Loc: Northern Kentucky

Posted 19 September 2020 - 08:22 PM

Having someone else do it takes all the self satisfaction away.  Last resort.   Interesting while I was checking out powder coating they sell an aliminum paste to fill imperfections.  Aluminum still allows for power coating.   The one thing that worries me is the interior velvet black paint.  I have to see if it can take the heat from having to bake the powder coat after it is applied to the OTA.  I would hate to have to clean that interior paint if the heat makes it bubble up.  

Isn’t there an issue with the heat required in the process, of does the DIY machine not require such high temperatures? Seems like this was brought up earlier?




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics