Any suggestion for a DIY Quark active cooler?

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
Post Reply
User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

rsfoto wrote: Thu May 20, 2021 4:55 pm Hi,

Excellent solution ! Now just make another one and put them on the opposite sides :mrgreen:
Actually the outer case seems to have excellent heat conductivity. Even at delta T -15 degree under ambient, I am just measuring about under 1 *C in disperancy from the front and the back( even smaller if I keep the delta T lower) And since the etalon does not directly screwed into the outer case I think it wont introduce too much heat gradient into the etalon.


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
christian viladrich
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2150
Joined: Sun Jun 14, 2015 4:46 pm
Location: France
Has thanked: 1 time
Been thanked: 2713 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by christian viladrich »

It looks good !


Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

christian viladrich wrote: Thu May 20, 2021 6:17 pm It looks good !
Thanks Christian,
I still wanna do some testing with tilting as a 2 pronged approach to the tuning and see what works best.


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20435 times
Been thanked: 10243 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by marktownley »

Looks good!


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

marktownley wrote: Thu May 20, 2021 8:15 pmLooks good!
Thanks Mark,
Hope it works. If it does I'll make a 3d printed case for better mounting mechanism


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
AndiesHandyHandies
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1444
Joined: Fri Mar 30, 2018 6:46 am
Location: Derbyshire UK
Has thanked: 3292 times
Been thanked: 1887 times

Re: Any suggestion for a DIY Quark active cooler?

Post by AndiesHandyHandies »

Hi

When RodAstro took the retaining screw out of the joint between the red bit and the black barlow/combo that the joint is not screwed up tight.

There are a series of holes for the screw so its unlikely to be screwed up tight.

So the pressure of the tie downs will be tilting the joint I presume.

The screw is a imperial torq security one I think being USA.

Cheers. Andrew.


User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

AndiesHandyHandies wrote: Fri May 21, 2021 7:58 am Hi

When RodAstro took the retaining screw out of the joint between the red bit and the black barlow/combo that the joint is not screwed up tight.

There are a series of holes for the screw so its unlikely to be screwed up tight.

So the pressure of the tie downs will be tilting the joint I presume.

The screw is a imperial torq security one I think being USA.

Cheers. Andrew.
Thanks Andy, I worried the same thing too. But i tried to flex the joint between the black telecentric barlow and the red outer case but it seems solid to me, no flexing. And when I make the radiator I already take this joint into account, the tie down and the radiator actually both applying pressure to the black telecentric (the radiator extends about 5mm and seats partly on the telecentric barlow) , the tie-down on the 1.25 inches eyepiece drawer is fixed lightly.
20210521_205353~2.jpg
20210521_205353~2.jpg (909.55 KiB) Viewed 2189 times


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

Okay so the cooler works very well. Brings the temperature down about -12*C.
20210522_151020.jpg
20210522_151020.jpg (293.92 KiB) Viewed 2172 times
20210522_144336.jpg
20210522_144336.jpg (271.64 KiB) Viewed 2172 times


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20435 times
Been thanked: 10243 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by marktownley »

Good job!


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

marktownley wrote: Sat May 22, 2021 10:06 amGood job!
Maybe I should patent it. "An apparatus for cooling optical filter". Sounds good :))


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
christian viladrich
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2150
Joined: Sun Jun 14, 2015 4:46 pm
Location: France
Has thanked: 1 time
Been thanked: 2713 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by christian viladrich »

You should sell the patent to DayStar ;-)


Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
User avatar
minhlead
Almost There...
Almost There...
Posts: 682
Joined: Sun Apr 25, 2021 9:36 pm
Location: Ha Noi, Vietnam
Has thanked: 738 times
Been thanked: 1104 times
Contact:

Re: Any suggestion for a DIY Quark active cooler?

Post by minhlead »

christian viladrich wrote: Sat May 22, 2021 1:08 pm You should sell the patent to DayStar ;-)
They'd be first on the list :))


Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
Post Reply