Saturday, October 20, 2018

More on Dave's 16" F4.5 . . .

A 9-point flotation mirror cell designed and optimized
with plop. All aluminum construction and large
collimation bolts for stability and easy of adjustment.

Dave asked for "wheel barrow" handles to move his
16" telescope more easily. An effective and elegant
answer -- 10" pneumatic tires on black anodized
handles. These are "removable" of course

A solid 3/8" axle for stability and long life!!

Thursday, October 18, 2018

David's Upper Tube Assembly . . .

The Upper Tube Assembly (UTA) for David's 16" F4.5.

Now to add some color and varnish. That's the focuser
board in place yet to be drilled.

A Photo or Two from Robert in Shoreview, Minnesota...

Robert's 10" F5 with Sky Commander and
Easy Transport Telescope option.

Thanks, Robert, for the photo of you
and the telescope. Looking great!!

Wednesday, October 17, 2018

A 16" Truss Telescope for Dave...

Underway is a 16" truss for Dave in Peotone, Illinois.
This one will have a full UTA and custom color.

Altitude bearings and rocker box sides. All furniture-grade
Baltic birch. The bearings are 26" in diameter.

Monday, October 15, 2018

Destination Moon .....

I  happened upon this video on Youtube about making the film Destination Moon in 1950. In it, we meet George Pal (producer of this and other science fiction films), Robert Heinlein (science fiction author) and Chesley Bonestell (science artist and author).  I saw this film when it was first released and dozens of times since then!!

Check out this link. Click HERE.
An example of Chesley Bonestell's work

City at Night on the L.A. TV station KTLA

Chris' Kit .. Completed ....

Chris 17.5" kit is complete, packaged and ready to go...

Wednesday, October 10, 2018

A Neat Idea from Curt in Redmond, Washington...

Storing the top ring on a truss telescope has been made
easy by Curt with his adapter-ring and short struts.

Great idea, me thinks!!!

And, yet another view...

Tuesday, October 9, 2018

A Rocker for Chris' 17.5" Telescope . . .

Accommodating Chris' 21" spider means scaling up the
size of the telescope a bit. Here's the rocker box 
coming together.  The dimensions are a "bit" larger 
with a 27" foot-print. Nice!!

Monday, October 8, 2018

More on a 17.5" Kit for Chris...

Most of the kit is complete. I just need to make the
rest of the rocker box and mirror cell.

And, the "top ring" with spider brackets for a
4-vane Protostar spider and focuser bracket.

A Review From a Couple of Years Ago . . .

Check out this review. Click HERE.

Thursday, October 4, 2018

Chris' 17.5" Truss ....

The 26" diameter altitude bearings and rocker box sides
are taking shape. So far, this kit is looking great!!

A Secondary Mirror Cover in a Jiffy . . .

Curt, in Redmond, Washington sent along this neat solution
for a secondary cover. First, of course, one has to "eat the
the contents"!! Great idea....


And check out the very cool color of his 12" telescope.

Wednesday, October 3, 2018

Tuesday, October 2, 2018

An 8" Mirror Cell for John in Tuscon, Arizona....

Here's a "simple 6-point" cell for John's 8" primary mirror.
The O.D. of the backplate is 9.5". His mirror is 1.5" thick,
so a simple all Baltic birch cell will work just great.

Easy collimation with thumb knobs. John will affix his mirror
to the cell with silicone. No mess, no fuss.

Monday, October 1, 2018

A Custom 8" Rocker Box and . . .

A custom rocker box and altitude bearings
for Robert in San Rafael, California.

Just send me your tube-rings and
I'll do the rest!!

Nice!!

Ron, in Cafers, Australia and his 16" . . .

Hi Dennis

I thought I would send you a quick photo. I have mounted the dobstuff telescope on a Gregg Blandin crossbow platform. I have used the platform for my old GSO 10", but with a minor adjustments to the feet of the rocker box, it easily accepts the new telescope. Weight is not an issue - the crossbow is built like a tank! So, now after painstakingly centering Mars in a high powered eyepiece, I can amble inside and coax my wife out in the cold for a look. A polar cap and surface detail were clear through some fairly murky viewing. She was very impressed! She laughed at the size of the scope compared to the old one, and I do need a ladder for this view, but I think a will get a simple 12 inch step stool and that will do just fine.

Thanks again for producing such a fine instrument, and in record time!

Best wishes
Ron.

Wednesday, September 26, 2018

A 20" Mirror Cell Completed....

This 20" F4 mirror cell for Zane in Stamford, CT. The
Baltic birch backplate is 23.5".

The collimation bolts are a heavy-duty 3/8" in diameter with
a "double-spring" for this larger and heavier mirror.

Tuesday, September 25, 2018

A 20" 9-point Flotation Mirror Cell....

For Zane in Stamford, Connecticut. This "front-plate" is a
9-point flotation cell designed and optimized with Plop.
The Baltic birch "back plate" is in its finishing stages.


The collimation bolts and adjustment threaded knobs
are 3/8" for this heavy-duty application.

Gimme a "Break", Will Ya???

Every now and then I find the DEC axis needs a bit of
"sticktion". Installing a break does the trick.

Once the altitude bearing is in position, simply "tighten"
for the right feel. It helps using heavier eyepieces as well.

Monday, September 24, 2018

Two Telescopes Completed . . .

A 10" F5 for Rick in Newberry, Florida.

And a 12.5" F4.7 for John in Howell, Michigan.

Both of these telescopes have "strings" and
secondary mirror dew solutions. Both have
the "easy transport telescope" 2-speed Moonlite

focusers and curved-vane spider.

Friday, September 21, 2018

Len and his Telescope . . .


 Dennis

Here's a strut tube pouch my wife and I made. I designed, measured and cut -- she sewed. it's made of canvas with a bungee that has a cord stop on it, plus I use a buckle-style Velcro strap around it farther down. The top flap is longer than necessary, but that was the length of the fabric so we just left it alone. If it botherrs me too much I can always cut it down and re-hem.

Jerry



Jerry and his 12.5" Telescope . . .

Dennis, 

finally got to use the new scope under dark skies in Utah the last couple of weeks. The scope performed well, and survived the 5,000 mile round trip in the back floorboard of my grandson's pickup truck, packed along with our camping gear. I especially enjoyed the Sky Commander option; 75% of the deep sky objects observed were those I had never seen before! Thanks for building an awesome scope for me; it will be a lifetime keeper.

Jerry, 
Birmingham, AL

Wednesday, September 19, 2018

An 8" Rocker Box for Robert in San Rafael, CA. . .


Robert sent me some tube-rings for his 8" tube telescope.

The altitude bearings are 10" in diameter.
An "example" of a solid-tube custom rocker box.

Monday, September 17, 2018

A Bit More on Rick's 10" and John's Rocker Box ...

Rick's rocker box starts to take shape.
And, John's rocker box is coming together
also. So far, a perfect fit!!

Saturday, September 15, 2018

And Even More on Two Telescopes...

Telescopes for John and Rich. Both with
the Easy Transport option. A 10" (L) and
12.5" -- only 2.5" in diameter but so much
more!! Both of these are string-struts.

Friday, September 14, 2018

More on a 10" and 12.5" Telescope . . .

12.5" (L) and 10" mirror board, custom cover
and top ring with spider and focuser.

And with the cover in-place. The focusers are Moonlite
2-speed 2" crayford focusers. Nice!!


Here's the 10" OTA. Now to
add the Easy Transport Telescope
system.