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[Paul Haese]

Ok this is the official peltier cooling thread for the C14.

Today I started making preparations for installing the peltiers, hopefully this weekend.

The list of the following is what I need or have the project:

1. DS peltiers x 2 (done)
2. Wire for wiring up the system (done)
3. Connectors for the wiring. (done)
4. Flocking paper to flock the inside of the scope (done)
5. silicone for glueing down the wiring
6. 40mm fans for internal circulation (done)
7. adhesive tabs for registering where shims and the corrector is orientated. (done)
8. Gloves either cotton or latex (done)
9. adhesive backed 3mm rubber for insulating the visual back. (this idea was suggested by Bird, great lateral thinking)
10. Temperature sensor to install onto the back of the mirror (done)
11. Garbage bags to store the Mirror and Corrector plate. (done)
12. plastic bolts and nuts (not sure if I will use these given that the 18" system works fine without them)
13. Grommets for sensor wire and other general wiring to pass through.

Now can anyone think of anything else I need to take into consideration? I know I will forget something and do not want to find something I need when I am pulling the scope apart.

Please do not spam this thread, I want honest constructive opinions.

I will post images of the construction and dismantle here, that way we can make a how to later. This will be the first time this has ever been done anywhere. So I want it to work the first time.

[tassie tiger]

how do you attach the internal fans, maybe glue them to the metal on their side?

I do not think it matters which way they blow if they are at 90 degrees to the base

[Paul Haese]

I think I will bolt them in like on the 18" cooler and Birds. So they will be blowing onto the visual back. I don't think there is enough depth to allow for standing up.

[tassie tiger]

cool, makes sense

i know bird mentioned for air flow,  a clearance of at least the width of the fan between fan and visual back.

[Paul Haese]

Yep 10-15mm is not a problem, that will make it about 30mm to the top of the fan, I think there is about 50 odd mm clearance; maybe even more.

[tassie tiger]

excellent!

[stephen_mcnelley]

No spam; but please turn this thread into a how to thread in that section, it was built for it.

[Paul Haese]

I will turn it into a how to thread.

[Exfso]

Now, I reckon this it just about one of the most ambitious "modifications", that has been attempted here.  Should be very interesting to see how it proceeds.  I have a feeling I will become involved one way or another. I must admit, one has to have "balls of steel" to start this on a C14.  I know both Lester and John did Lester's 14" Meade, and they are probably the pathfinders in this respect. I gather that was a somewhat mammoth project in its own right.
Once the C14 is completed, it will no doubt have similar visual aspects to satellites that are going into orbit. Probably not unlike Bird's "hubble look alike".

[stephen_mcnelley]

Nah, what a lot of crap... just figure it carefully and precicely RR, article appreciated in advance.

[Asimov]

You'll need something made of plastic or wood to 'pop' the corrector if it's 'glued' itself in place over time.

[Paul Haese]

Thanks John, was the Meade glued in place?

Pete you might be needed mate, not sure yet.

[Paul Haese]

Now, I reckon this it just about one of the most ambitious "modifications", that has been attempted here.  Should be very interesting to see how it proceeds.  I have a feeling I will become involved one way or another. I must admit, one has to have "balls of steel" to start this on a C14.  I know both Lester and John did Lester's 14" Meade, and they are probably the pathfinders in this respect. I gather that was a somewhat mammoth project in its own right.
Once the C14 is completed, it will no doubt have similar visual aspects to satellites that are going into orbit. Probably not unlike Bird's "hubble look alike".

I know Lester has had his scope apart, but this will be a first. My scope will the first OTA with its own mobile refrigeration using Peltiers. It will be flocked, sensored and deep cooled. I seriously considered Lesters idea too. In the end though I opted for the thing I can use over seas if ever I go to Cebu or Barbados or even places like Snake valley.

[Lester]

Thanks John, was the Meade glued in place?

Pete you might be needed mate, not sure yet.

Paul the corrector was too tight to pull out by hand.  Used the plastic clothes peg split in halves and ground to a sharper wedge on the end to prize the corrector loose.

[Paul Haese]

Ok will keep that in mind. Just have to get the courage up to start the process.