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Okay chaps, been doing a lot of thinking about the Cat Cooler as I dismantled the fridge.
I was going to mount the peltier with octopus straps in a foam surround on top of the tube. The foam would be to stop cold air escaping horizontally, and the peltier would be touching the tube directly.
Then I got thinking, the peltier is only 3" x 3" trying to cool a much larger area. I am always looking for the easy way out.
What would be wrong with attaching ice packs with octopus straps, and monitoring the temperature of the telescope with a thermometer and the ambient air temperature also. Then by estimating how much the air temperature is going to drop from sun down to observing time, you could apply 1 or more ice packs. Okay it will be trial and error at first, but once you know how many degrees the night will be colder than the day temperature, you apply 1 or more ice packs and for a set time.
Sounds so simple to me. Your comments will be gratefully received.
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