Monday, January 16, 2017

A 14.25" F4.5 for Harry . . .

Harry's 14.25" strut taking shape. here the spider and
focuser bracket have been mounted.

A very robust Kenneth Novak mirror cell has been modified and
fitted onto the mirror board. Once fully assembled, it a 9-point flotation cell.

The OTA rings for Harry's strut with ETT telescope.



Saturday, January 7, 2017

A 12" for Leon in Lebanon, Pennsylvania . .

Thanks to Leon for sending a photo of his  completed 12" telescope with ETT.
Great job and I like the color!!

Thursday, December 29, 2016

Terry, and his 12" . . .

Dear Dennis,

Yesterday I arrived back in Australia with the ETT. Your advise was spot on. The telescope did not have any damage. Well, there was a small crack in the plastic mirror cover that came with the Optics. (see attached). Now I am looking forward to many nights under the Southern Cross with this telescope.

In order to get the ETT on the airplane, I broke the telescope down to its nuts and bolts. And everything but the optics was packed in regular checked luggage. I purchased a Nanuk hard case with heavy foam inside. I cut out a place to place the main mirror and mirror cell (still attached). The mirror has a few finger prints, but otherwise there is no harm to the mirror. As you can see from the note left by the TSA agent, they were interested and also encouraging.

Last night (when I was up due to jetlag), I went into the back yard and saw lots of naked eye and binocular dazzlers. (see the Telesope Facebook page for information on the sights from last night).  I am now ready to reassemble the ETT and start using it, but I may force myself to wait while I do a bit of maintenance on the telescope. There are a few scratches in the finish, and I may make a few other changes, but nothing major.  

When I return from Australia (some years down the track), I will  have the airfreight guys pack the telescope and ship it back to the States.

This is my learner telescope (yes a 12” ETT). When I return, I will move up to a 16” or 18” dob. But most of the time my trusty 12” ETT will be my telescope for  the road. I like it very much.

Thank you

Terry.


Thursday, December 22, 2016

A 13.1" F4.5 Personal Telescope . . .

I finally got around to building a telescope for myself. Here's a 13.1" f4.5
with Swayze (Coulter refigured), curved-vane spider, Moonlite focuser
and Sky Commander DSC. Note the red-dot finder on the top.

I like to mount the Sky commander on a "stage". It's a convenient way
to place the DSC where I want and easy to use.

Detail of the top ring, focuser, spider and finder.

Friday, December 9, 2016

Terry and his Unique Telescope Shroud . . .

Dennis, The pictures below show how I have used ABS plastic to create a shroud for the travel scope. In the first picture I have added a second piece of plastic that is made into a tube using Velcro. The second piece of plastic is around the lower piece, and the upper piece slides up and down in order to allow me to access the mirror cover. Then in the lower picture, I added a third piece of ABS plastic that is wrapped around the second piece. This allows the plastic to come up to a point just below the focuser. I anticipate more work with the plastic in order to block out even more light. For instance I may add flocking inside the plastic tube in order to increase contrast. Then I will probably use weather stripping at the bottom of the tube to block out light from the bottom. . Terry

Monday, December 5, 2016

Kris' 16" Kit is Complete . . .

An 18-point flotation mirror cell,observatory grade spider and all
the "stuff" needed to complete Kris 16" telescope. He only
needs to add his 16" primary mirror and secondary.

Saturday, December 3, 2016

Kris' 16" Kit -- An 18-Point Cell . . .

An 18-point flotation mirror cell optimized with Plop.

The large rear ventilation hole is perfect for a fan.