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Post by davy on Sept 16, 2014 21:28:28 GMT
hi folks...I had to take the camera to work to bench test it,my bench power supply was not pumping out enough amps to run it, and the bad news does not stop there, checked hot /cold side of peltier and fitted to correct side casing/heatsink..powered it up ..the camera casing gets very very hot,,,no chill or even cold just heat...the heatsink and fans are just not powerful enough to remove the heat from peltier hot side...had this with the Samsung mod..will require in my estimate an 80-90mm major heatsink/fan configuration to cool this bad boy.. conclusion was it worth it..of course..parts were cheaply sourced..and its a learning curve still a doable mod only thing is its gonna be a big unit when finished lol...
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Post by davy on Sept 16, 2014 22:07:57 GMT
oops made a boo boo, double checking stuff on the mod and I found I have put x2 231watt peltiers on it..ordered x2 60watt peltiers to replace them..prob still to weak the fan and heatsink to cool but giving it a go..davy
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Post by johnno on Sept 17, 2014 0:29:10 GMT
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Post by davy on Sept 22, 2014 12:21:15 GMT
new peltiers today 60 watt..outcome not good still heats the casing..only way the peltier cooling will wirk and well is to use a large heatsink and fan combo..40mm heatsink and fan not removing enough heat from the hot side..davy
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Post by johnno on Sept 22, 2014 14:05:46 GMT
Davy try it when the cam is put onto the scope, some of the heat should disperse through the adapter to scope, but I would of thought having 2 peltiers on it would be more than enough, how long did you have it running? might take quite awhile for it to start dropping down the temp
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Post by davy on Sept 22, 2014 17:12:49 GMT
hi john. tested temp wise..ambient 18deg ..two peltiers and fan on about three minutes temp rose to 26 deg on casing,,tested temp on heatsink it was 68 deg...
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Post by johnno on Sept 23, 2014 2:16:25 GMT
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Post by davy on May 26, 2015 22:04:22 GMT
Change of direction on the phil dyer camera..have an other idea using just fans..few tests to carry out first..if my idea is right it will be a very simple mod.
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