coil quandary

igual
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coil quandary Apr 11, 2015 21:30:06 GMT

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Post by igual on Apr 11, 2015 21:30:06 GMT

Heyas peeps got a little problem and for the life of me I cannot figure this out.

Attempted a rewick and recoil of the subtank ooc head just now and was aiming for 0.8-0.9
I used a 2.5mm former and 0.37 mm kanthal ( thickest I have )
As per the tutorial I did not heat and squeeze coil before installing ( micro coil style ) but left a gap between coils.
I did 5 full wraps.
The calc I normally use said 4 1/2 wraps.
Didn't think that was right so used steam engine. That's saying 7 wraps.
Tried anouther that said 9 wraps.
So I went with 5 full and its 1.1 ohms not to far out but I'm puzzled.
Normally I can get my coils spot on useing the calcs but this gauge wire is not behaving
Help lol

I need rum .......

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tim Super Member Joined:February 2015 Posts: 2,137 Location: Likes: 1,516 P.M. Recent Posts Last Online May 25, 2022 22:18:37 GMT	coil quandary Apr 11, 2015 21:42:45 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by tim on Apr 11, 2015 21:42:45 GMT Where did you buy the wire igual? Also, which other calc did you use?
	Up! \| Down! Last Edit: Apr 11, 2015 21:44:44 GMT by tim If I agreed with you, we'd both be wrong

lairey VENDOR Employee/Associate Queen of Creams Joined:November 2013 Posts: 6,731 Location: Likes: 6,773 P.M. Recent Posts Last Online Apr 16, 2018 21:12:38 GMT	coil quandary Apr 11, 2015 21:43:43 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by lairey on Apr 11, 2015 21:43:43 GMT Weird... what leg length did you input igual? And what length do you think the legs actually are? In steam engine. I input single coil, 0.8ohms, 5mm leg length and 2.5mm ID and it's saying 5.33 wraps
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igual Super Member Guide Maker Joined:July 2014 Posts: 3,402 Location: Likes: 2,874 P.M. Recent Posts Last Online Jun 26, 2017 16:25:16 GMT	coil quandary Apr 11, 2015 21:58:13 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by igual on Apr 11, 2015 21:58:13 GMT Leg length I reckon due to the height of the coil is closer to 8 mm Its odd as I tried several different leg lengths to make the sums fit lol but Nada.
	Up! \| Down! Give me your secrets. Bring me a sign Give me a reason To walk the fire See another dawn Through our daughters eyes You give me a reason To walk the fire

igual Super Member Guide Maker Joined:July 2014 Posts: 3,402 Location: Likes: 2,874 P.M. Recent Posts Last Online Jun 26, 2017 16:25:16 GMT	coil quandary Apr 11, 2015 22:01:33 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by igual on Apr 11, 2015 22:01:33 GMT Wire came from crazywireco/vapemesh as it is now . Tried steam coils calc ( android app ) Vapers toolbox ( wire length was close ) Cigtoy ( android app) this was most accurate to what actually happened And steam engine
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tim
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coil quandary Apr 11, 2015 22:09:42 GMT igual likes this

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Post by tim on Apr 11, 2015 22:09:42 GMT

Apr 11, 2015 22:01:33 GMT igual said:

Wire came from crazywireco/vapemesh as it is now .
Tried steam coils calc ( android app )
Vapers toolbox ( wire length was close )
Cigtoy ( android app) this was most accurate to what actually happened
And steam engine

If they all give different advice for coil sizes, what hope do we have?????

Even different mods and ohms checkers do this. How do we know what we are actually using if we cant afford an electronics lab?

?

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Last Edit: Apr 11, 2015 22:10:01 GMT by tim

If I agreed with you, we'd both be wrong

lairey VENDOR Employee/Associate Queen of Creams Joined:November 2013 Posts: 6,731 Location: Likes: 6,773 P.M. Recent Posts Last Online Apr 16, 2018 21:12:38 GMT	coil quandary Apr 11, 2015 22:10:27 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by lairey on Apr 11, 2015 22:10:27 GMT With 8mm leg length, Steam Engine is saying 5.03 wraps... not sure why it's telling you 7 though
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igual Super Member Guide Maker Joined:July 2014 Posts: 3,402 Location: Likes: 2,874 P.M. Recent Posts Last Online Jun 26, 2017 16:25:16 GMT	coil quandary Apr 11, 2015 22:16:53 GMT lairey likes this Quote Select Post Deselect Post Link to Post Back to Top Post by igual on Apr 11, 2015 22:16:53 GMT Yep now you see why I have brainache lol
	Up! \| Down! Give me your secrets. Bring me a sign Give me a reason To walk the fire See another dawn Through our daughters eyes You give me a reason To walk the fire

lairey VENDOR Employee/Associate Queen of Creams Joined:November 2013 Posts: 6,731 Location: Likes: 6,773 P.M. Recent Posts Last Online Apr 16, 2018 21:12:38 GMT	coil quandary Apr 11, 2015 22:33:15 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by lairey on Apr 11, 2015 22:33:15 GMT Apr 11, 2015 22:16:53 GMT igual said: Yep now you see why I have brainache lol Absolutely, I would have too!
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blakey
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coil quandary Apr 12, 2015 5:00:46 GMT Die5el, Greg, and 1 more like this

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Post by blakey on Apr 12, 2015 5:00:46 GMT

The calculators all assume that all wires are the same resistance at a given thickness.
Look on the crazy wire site and find out the ohms per metre and then divide that figure by 100 to get ohms per cm - then just work out how many cm's you need for the coil you want.

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