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Just make the nichrome sections longer - experiment with it - see what 12V heats it up to. I think I did about ~ 4 circumference length strips of nichrome on my 80mm refractor to get the resistance up and temperature down to a non-painful level. And ran 2 of these in parallel - makes a nice wide heater.
I put the nichrome inside heatshrink - a really good insulator and solid. Then stuck that down on aluminium tape on the scope side and then gaffa around the outside, then velcro etc. Mines been running for over a year now, no problemo.
But those heating elements look pretty cool
Last edited by ChrisV; 05-06-2018 at 06:06 PM.
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