My just completed Jaegers 6-inch f/10
Posted 18 November 2012 - 10:39 PM
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.
Posted 18 November 2012 - 10:43 PM
Posted 18 November 2012 - 10:46 PM
Posted 18 November 2012 - 10:49 PM
Posted 18 November 2012 - 10:50 PM
. I made them using a band saw and a belt sander.
Really? Very nice!
Posted 18 November 2012 - 10:51 PM
Posted 18 November 2012 - 10:52 PM
Posted 18 November 2012 - 10:55 PM
Posted 18 November 2012 - 10:56 PM
Posted 18 November 2012 - 10:57 PM
Posted 18 November 2012 - 11:09 PM
Posted 18 November 2012 - 11:12 PM
I'd be grateful for any comments, and welcome questions. And thanks for the comment way up there from rguasto!
Posted 18 November 2012 - 11:16 PM
Posted 19 November 2012 - 08:42 AM
You are also a craftsman and the work looks excellent!
Posted 19 November 2012 - 09:45 AM
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.
Posted 19 November 2012 - 10:54 AM
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.
Posted 19 November 2012 - 11:14 AM
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.