Gina

Printing new thermal jacket. Meanwhile, I've placed Nofan on the table, TEC on top and camera plus jacket etc. on top. This would be ideal as the airflow will be limited by the table and the small exposed parts of the camera casing are not covered. Anyway, I'll just see what happens. Starting temperature 27.5°C.

New model.

The first try on a square didn't work because one screw would have gone through the USB plug. Of the other two, one was a bit wider than the other and next best to a square so I've modelled that. One screw would currently go through the USB cable but I can move that. A new design would be needed anyway to allow for the fixing screws.

The Nofan comes with a number of mounting plates that provide 3 different arrangements of attachment points to the motherboard (this is a CPU cooler). In my case it is a matter of seeing which arrangement best suits the ASC.

Yes, a good job indeed. I wondered though why you used channel rather than the usual FH Brundell rails that most of the rest of us use. There will be friction and wear when the wheels rub on the sides of the channel. The other reason I rejected the idea of channel was that debris can collect in it and impede the running. I tried all sorts of wheels and rails etc. as my observatory developed, eventually going for FH Brundell 120mm wheels and semicircular section rails. Others have used V section, don't know if there's much difference.

The Nofan has arrived and I can now make progress on my ASC or at least try it and see if it does what I want.

Amazing - you learn something new every day!

I've got one of those, used it with an earlier version of my ASC with a 3" dome where it worked fine. May try it again with the 4" dome - it has many advantages over separate resistors.

Wonders upon wonders!!! In spite of that it's arrived - yippee I've unpacked it and it looks beautiful but looks are not paramount - I now need to see how I'm going to use it and then arrange a test rig to see how well it performs for my application. I know full well it was a gamble but a gamble worth taking, I believe.

Latest!! Grrr...

WiFi won't work through aluminium.

No problem James 😀 It did amuse me.

Oh very droll, James 🤣

I read by forums because I choose just the areas that interest me.

Nothing arrived here today 😕

I have several hot air guns of different sizes - very useful items.

With the extra sensitivity of the mono camera, it won't need as much cooling so I might be overdoing it - depends on the cooling and I won't know how good that is until I get the Nofan. No!! It isn't here yet. Should have arrived yesterday.

The new thermal jacket certainly works better than the previous camera casing. The top of the jacket is a bit thin and there was slight condensation but worse is condensation on the top of the lens. However, I plan to have it all in a sealed outer casing with desiccant bags to absorb moisture and also the lens will be in the warm zone slightly above the level of the dew heater. Also, with all these rail showers the RH indoors is over 50%.

Seems to have settled at -8°C.

Now down to -7°C and that's with an ambient of 17°C. Still going down I think.

-4°C so far. A degree lower than before.

Cooling test with new 3D printed thermal jacket. Starting at 22.5°C.

Are those having problems using something other than a PC desktop or laptop because I don't see the problem?

Yes!

All went well. Greeted by a nice clean print when I got up this morning 😀 I'll be testing it shortly.