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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
My just completed Jaegers 6-inch f/10
      #5526987 - 11/18/12 10:39 PM

I bought the lens in August, when they were on sale at the Surplus shed, and I got an email offering me an additional 30% off anything in the store. I had also just sold something on eBay for more than I thought I would possibly get. I couldn't pass it up.

I immediately ordered a cell and focuser from Crawford Machine (Crowmach). I had read very good things about Dan from posts here on CN. I don't know of anyone else doing custom work like he does. It took longer than either of us thought it would, but it was more than worth the wait. The cost was more than reasonable, and they are built very solidly.

I got the tube and dew shield from Hastings Pipe, another place that was a pleasure to deal with. Very friendly and helpful.

I had the tube, shield, and a couple of parts powder-coated by a local company here in southwestern Wisconsin.

I'll post photos in the order I took them, as the process went on.


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5526998 - 11/18/12 10:43 PM Attachment (90 downloads)

Here's the jig I made for my router to make circles. I used it to cut circles for the cradle, rings for the baffles and for the front of the dew shield. In this photo, you can see a very thin ring that I made to adapt the 8-inch dew shield to the 7.5-inch cell. I decided it was too thin, and just used felt strip.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527005 - 11/18/12 10:46 PM Attachment (61 downloads)

Here's the handle for the cradle, and an attachment for mounting a guide scope. I made them out of stock aluminum that I had in the garage. I get some kind of satisfaction when I can use what I already have. I made them using a band saw and a belt sander.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527009 - 11/18/12 10:49 PM Attachment (60 downloads)

Before ordering the tube, I made a 'telescope on a stick'. I put the lens in it to measure just how long the tube needed to be for me to use it with my eyepieces, diagonals, and cameras. Here's one view.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527011 - 11/18/12 10:49 PM Attachment (54 downloads)

Here's another.

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rguasto
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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527014 - 11/18/12 10:50 PM

Quote:

. I made them using a band saw and a belt sander.




Really? Very nice!


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527017 - 11/18/12 10:51 PM Attachment (60 downloads)

Here's the tube and dew shield cleaned up and ready for powder-coating.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527021 - 11/18/12 10:52 PM Attachment (38 downloads)

Here are some of the other parts ready to go. You can see Halloween was approaching.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527025 - 11/18/12 10:55 PM Attachment (50 downloads)

Here are all the parts laid out after the powder-coating was completed. I covered the tube and shield in paper, then sprayed them inside with flat black paint. This was taken yesterday.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527026 - 11/18/12 10:56 PM Attachment (59 downloads)

Here's the cleaned up lens in its cell. This was taken today.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527029 - 11/18/12 10:57 PM

And here's the scope on my Atlas, which is just equal to the strain.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527032 - 11/18/12 10:57 PM Attachment (71 downloads)

Oops! Forgot the photo.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527039 - 11/18/12 11:04 PM Attachment (45 downloads)

Here's another photo.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527042 - 11/18/12 11:05 PM Attachment (43 downloads)

Here's one more.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527044 - 11/18/12 11:06 PM Attachment (45 downloads)

A close-up of the cradle.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527046 - 11/18/12 11:06 PM Attachment (51 downloads)

The focuser.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527048 - 11/18/12 11:09 PM Attachment (39 downloads)

The cap. I made this with the router jig, too, and designed the front end so I could mount the solar filters (visual and photo, with AstroSolar film) that I had made for my 5-inch, f/6.4 refractor.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527049 - 11/18/12 11:09 PM Attachment (33 downloads)

Here's the filter adapter.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527050 - 11/18/12 11:12 PM Attachment (39 downloads)

And the mounted filter.

I'd be grateful for any comments, and welcome questions. And thanks for the comment way up there from rguasto!


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527056 - 11/18/12 11:16 PM

Of course, now I have to wait for clear skies to actually test the completed scope out. I mounted the telescope on a stick to just test basic functionality, but without a tube there was little contrast. Still, the views were quite sharp when I aimed the scope at a TV tower about half a mile away. But then I lost the instruction sheet for which way the front element should be place, and got some help earlier today here on CN.

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herrointment
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Reged: 03/12/11

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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527083 - 11/18/12 11:44 PM

She's a real beaut!

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glennnnnnn
sage


Reged: 10/20/09

Loc: San Diego, CA
Re: My just completed Jaegers 6-inch f/10 new [Re: herrointment]
      #5527481 - 11/19/12 08:42 AM

Going the traditional route: This kind of telescope will always be a classic!
You are also a craftsman and the work looks excellent!


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Gord
Carpal Tunnel
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Reged: 01/06/04

Loc: Toronto, ON, Canada
Re: My just completed Jaegers 6-inch f/10 new [Re: glennnnnnn]
      #5527559 - 11/19/12 09:45 AM

Wow, what a beauty! And in Tasco Red no less!

Do you have a paint code for that?

How did you find the hastings tube for prep? Were there many defects (dents, etc.) that had to be taken out?

Again, really nice! I like the 6" F10 size. They are still manageable (although not small) and have the nice classic long refractor look. If you don't have one already, I recommend a long FL Plossl (Meade 56mm, TV 55mm, etc.). They work really well, give huge fields, well corrected and not to large an exit pupil.

Clear skies,


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Mirzam
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Re: My just completed Jaegers 6-inch f/10 new [Re: Gord]
      #5527685 - 11/19/12 10:54 AM

Beautiful paint job and overall nice job! I also like the handle/finder mounts made out of aluminum square tubing. Great idea!

I have a Jaegers cemented 4" f/10 lens in a homemade tube and it is an excellent performer. False color is not objectionable, and the reasonably short tube is very easy to deal with.

JimC


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: Mirzam]
      #5527717 - 11/19/12 11:14 AM

Thanks, guys!

The color is actually orange (for some reason, it's called 'sparkle bomber orange'). I don't know if it's because it is powder-coating rather than traditional paint, but it has a lot of depth, and a certain amount of prismatic effect. I took the photos not long before sunset, so that may have made it look more red. If you look at the focuser photo, it shows the true color better.

As for the square aluminum tube, I was very pleased myself with how easy it was to shape, and the overall look when I was done with it. I wanted a metal handle between the wooden cradle rings, but didn't want to pay what they cost at Home Depot. Once I decided to use what I had, the design sort of followed from the shape of the tube, and my wanting to cut away the holes I had drilled in the square tube for some old project.


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527733 - 11/19/12 11:20 AM

Oh! The Hastings tube was not bad, especially for the price. There's one small ding in the main tube, which nearly went away with the powder-coating. I did have to sand the ends a bit to get rid of the rough edges, but it was quite square, which had been a worry. Some lines also show (barely) along the tube, where the manufacturing (and more of my sanding) did not quite make it smooth. I'm almost glad it isn't perfect; this way, maybe I won't be quite as insane in how careful I am with it!

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dan_h
Carpal Tunnel


Reged: 12/10/07

Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5527774 - 11/19/12 11:46 AM

It's a great looking scope. Nicely done!

dan


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tim53
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Loc: Highland Park, CA
Re: My just completed Jaegers 6-inch f/10 new [Re: Mirzam]
      #5527890 - 11/19/12 12:53 PM

Quote:

Beautiful paint job and overall nice job! I also like the handle/finder mounts made out of aluminum square tubing. Great idea!

JimC




I was going to say exactly the same thing. I really like how that turned out! What an elegant way to turn a rather spartan, even ugly square tube into something attractive while still being very functional! Gives me some ideas... ...like how about putting hardwood inserts inside the tube, fer instance!

Love the red tube, too!

-Tim.


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rboeAdministrator

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Re: My just completed Jaegers 6-inch f/10 new [Re: tim53]
      #5527899 - 11/19/12 01:02 PM

Wow! That turned out nice!

Is the 127mm lense? What size tubing did you buy for the dew sheild?


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: rboe]
      #5527976 - 11/19/12 01:30 PM Attachment (33 downloads)

I like the idea of hardwood inserts, and will give that some thought. However, the opening in the handle actually seems to work as a rough finder; sort of a very poor man's Telrad. I plan to buy a G-11 to put this on, and I tend to push to objects. I want to see if I'm right about rough alignment with the handle (skies are supposed to clear tomorrow).

The tubing for the shield is 8-inch; the main tube is 7-inch, for the 6-inch lens. Dan Crawford originally thought he'd be able to make the cell take a 7-inch dew shield, but later wrote to say that 7.5-inches was the smallest he could get it. In the meantime, I had ordered and started finishing a 7-inch shield. I've attached a photo. If someone wants it, I'd be glad to pack it up and send it for the shipping cost. It's a 7-inch outer diameter pipe, with a .060 inch thick wall; nine inches long. Unpainted inside and out, but sanded with 320 grit. The cap was also made to use the solar filters I made for my 5-inch scopes. The photo doesn't show it, but the cap is made from a thin ring of birch plywood, with a thinner piece glued on the front.


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tim53
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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5528033 - 11/19/12 01:58 PM

Quote:

I like the idea of hardwood inserts, and will give that some thought. However, the opening in the handle actually seems to work as a rough finder; sort of a very poor man's Telrad. I plan to buy a G-11 to put this on, and I tend to push to objects. I want to see if I'm right about rough alignment with the handle (skies are supposed to clear tomorrow).




This reminds me of another idea I had for a zero-power finder. And it might work in this case, too. I make a lot of my tubes out of plywood, so they're polygonal. Even with just a semi-gloss polyurethane on them, I can sight along the tube and line up on a bright star or planet by getting its reflection to converge with the sky view. So, you could probably do the same with your square tubing, even if you were to put inserts on the inside, by sighting along the outside faces.

-Tim.


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tim53
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Re: My just completed Jaegers 6-inch f/10 new [Re: tim53]
      #5528037 - 11/19/12 02:01 PM

I should note that this worked so well with my 12.5" f/23 Cassegrain that it was more than a year before I put a finder on it. Just sighting along the tube sides was enough to get the object in the field of view of a 28mm RKE at the Cass focus (the telrad in this pic was added later):



-Tim.


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PaulEK
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Re: My just completed Jaegers 6-inch f/10 new [Re: tim53]
      #5528043 - 11/19/12 02:04 PM

Great idea, Tim. Thanks!

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Rutilus
Carpal Tunnel


Reged: 12/17/10

Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5528157 - 11/19/12 03:13 PM

Great refractor build.

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mikey cee
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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5528425 - 11/19/12 05:20 PM

Paul a red finder will put the cherry on top of this bad boy|! Nicely done! Mike

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rboeAdministrator

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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5528548 - 11/19/12 06:38 PM

I keep reading and misreading your dew shield post. I think I can make use of the 7" dew shield if you have not gotten rid of it yet. PM for details.


Edited by rboe (11/19/12 06:41 PM)


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: rboe]
      #5528845 - 11/19/12 09:25 PM

Thanks once more for all the nice words!

And, Ron, I just sent you a PM.


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PaulEK
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Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5528855 - 11/19/12 09:31 PM

I've built several other scopes, but they were all of the just-so-it-works style. Nothing very handsome. This one looks nice enough that my next project will be to build a well-padded, solid case for it. With wheels on one end. (The scope is pretty massive and unwieldy.)

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rboeAdministrator

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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5529109 - 11/19/12 11:25 PM

The 5" aint' light either.

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Dave O
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Re: My just completed Jaegers 6-inch f/10 new [Re: rboe]
      #5529206 - 11/20/12 12:24 AM

Stunning! Absolutely beautiful. Thanks for sharing.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: Dave O]
      #5529784 - 11/20/12 10:38 AM

Thanks, Dave!

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Project Galileo
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Loc: Jefferson County, Colorado
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5530024 - 11/20/12 12:22 PM

Great work, fine craftsmanship, and an excellent result. Enjoy!

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Anil
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Re: My just completed Jaegers 6-inch f/10 new [Re: Project Galileo]
      #5531465 - 11/21/12 02:14 AM

Awesome looking scope, love the color, great work. Cradle design is a beauty!

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: Anil]
      #5532296 - 11/21/12 01:40 PM

Thanks again for the comments!

I went out today and bought the materials for a case to hold it, and will hope that the clear skies that have been forecast for three days will actually happen soon.


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rwiederrich
Goldfinger
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Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5532639 - 11/21/12 04:52 PM

Great job Paul....I love homemade refractors..my specialty.

Again..awesome job..

Rob


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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: rwiederrich]
      #5532888 - 11/21/12 08:01 PM

I just set the scope up and took a look at the moon. I'm no optics expert, but all looked great to me. Especially since the seeing was not good, and lots of wispy clouds got in the way. I'm going out in a couple of hours to look at Jupiter. I have a friend whose got experience collimating refractors, and he's going to come help me check that. I might as well get the best out of it that I can.

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5533616 - 11/22/12 09:42 AM

Thanks, Rob!

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PaulEK
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Reged: 05/25/08

Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5549159 - 12/01/12 05:53 PM Attachment (14 downloads)

I've made a sturdy but ugly case for it.

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PaulEK
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Loc: Wisconsin
Re: My just completed Jaegers 6-inch f/10 new [Re: PaulEK]
      #5549167 - 12/01/12 06:02 PM Attachment (10 downloads)

It has a handle on top, and another in the front. I put casters in the rear so that I can roll it to where I want it. Between the long case itself and the scope, this has to weigh about 50 pounds. It has found a place near the front door for now, and wants to go outside.

I also bought a new diagonal for it. I only had a cheap one from the Surplus Shed. When I tested it using the cheap diagonal, views became mushy by 200x. I only had a short time of clear skies, so could not raise the tripod and use it straight through. I'm hoping the new diagonal will allow me to go higher. I guess it could have been the seeing. It also might need collimation.

Another question is whether the tape spacers that came with it from the Shed are the right thickness. Can anyone point me to information on just how thick the spacing should be? I don't want to mess with it if I don't need to.

Of course, I could also have bought a lens that is just not that great. I hope not, and will assume not, for now.


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