Well I built V2. At short notice I couldn't find an enclosure similar to Gary's and ended up with another lunch box but deeper and smaller. Wasn't much room for insulation but it was a better build. Took ages to cool down, nowhere near as efficient and only got about 10* delta at best. Temp also climbed quite rapidly when in use for longer exposures, only ran at about 5* delta to ambient. I'll play with it a bit more and improve the insulation and sealing but I'm on the hunt for a better sealed and lightly bigger enclosure. Air cooling is far different animal compared to contact cooling as I used on the AS! 120.
Much tidier on the scope though.
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