Just as the title says I would like to learn how to build a curved coil.
Just looking to build a simple single strand 2.5mm dia. half moon shaped coil to fit inside a 16ish mm dia. chamber.
why? 
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Long story short. An experiment in routing airflow from an elongated air inlet to see the effect on flavor. 
clamp both legs, use a round mandrel larger enough for the curve and push from inside to the outer edge of the deck, MAYBE???
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bend a screwdriver, wrap on that other wise u could just tighten the posts with the coil starting on your curve and individually stretch each wrap out ward
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right 
Possibly. I have seen pics of one somewhere. I can spend a lot of time finding or creating something to use as a template… Then find out there was an easier way lol. Hence the question 
LOL, I’ve actually tried it and it worked had to make the coil with a few extra wraps to allow for the bend. worked ok needs to be about a 24g to work and I did it with Kanthal
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I do shit just for the hell of it , looking 'round for right rda to try, lmao. I would put a few coat hangers together to make the right diam. and curve to same as barrel and wrap on that
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lol I build oval shaped coils using a couple of those famous blue screw drivers that I intentionally broke the plastic off to make a tool for making them! They make top notch flavor over a bottom airflow setup!
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Could get a plastic rod and drill a hole at 0 and 180 degrees for however many loops. Insert a pin through each whatever spaced hole selected. Pin diameter to what ever drill size dependent on press fitting the pin. Pin material/diameter to be snap resistant.
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Must be time for bed… I will try to process that after some sleep
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Whoops, forgot to uncross the coils, but I think you get the idea.
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