Home Built Astronomy DIY SCT / Mak Cooler

[rnabholz]

Hello Everyone,

I have recently completed a new project and added it to my site Home Built Astronomy.

The project is a DIY SCT / Mak Cooler.  Easy, inexpensive and effective.

If you are interested, you can read more at http://www.homebuiltastronomy.com/sct

Thanks and Clear Skies

Rod

[dweller25]

Cool idea - pun intended

Here's my solution .......

[ChrisLX200]

Mine was a little more... direct. Just cut a hole in the back :-)

ChrisH

[laudropb]

Very nice solution. Thanks for posting.

[rnabholz]

Cool idea - pun intended

Here's my solution .......

I haven't seen the diagonal used as port. How does it work for you?

IMG_1210.JPG

[rnabholz]

Mine was a little more... direct. Just cut a hole in the back :-)

ChrisH

Just thinking about cutting that home makes my palms sweat... ;^)

Do you push or pull with the fan? Where does air exit out enter?

[rnabholz]

Very nice solution. Thanks for posting.

Thank you WD.

[ChrisLX200]

Just thinking about cutting that home makes my palms sweat... ;^)

Do you push or pull with the fan? Where does air exit out enter?

 It draws air in from outside and blows it against the back of the primary, then around it and out through the visual back aperture. Reduces cool-down time by half.

ChrisH

[rnabholz]

It draws air in from outside and blows it against the back of the primary, then around it and out through the visual back aperture. Reduces cool-down time by half.

ChrisH

OK, I see.

Is the fan filtered?

How did you cut the hole?

[ChrisLX200]

OK, I see.

Is the fan filtered?

How did you cut the hole?

Yes, there's a foam filter behind the fan grille (which is home made). I cut the hole with a hole saw and a file to clean up, but the scope was stripped down at the time so no mirror or corrector plate! I was doing some major surgery at the rear end to stabilise the mirror.

ChrisH

[dweller25]

Cool idea - pun intended

Here's my solution .......

I haven't seen the diagonal used as port. How does it work for you?

IMG_1210.JPG

 It's very efficient but needs an exhaust hole and it lets me observe whilst cooling down.