OK. I'm I trying to wrap my own cools but can't get the ohms I want. I'm using a 18ga syringe needle with 28ga kanthal . No matter how many wraps or how tight or loose I make it , its still comes up 2.8-3.5 ohms. I do have some 30ga flat kanthal and the same thing happens. Do I just need a 5/64 drill bit to this or can do this with what I have?
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I wrap mine after creating a segment that equals 2.5 ohms. I just cut it off and then wrap 5 turns around the wick. When I break off the dangling legs after inserting the coil and wick into the head, it comes out to be around 2 ohms. I'm using 32 gauge Kanthal wire and a doubled 2mm rope wick in an Evod coil.
The key is measuring resistance before you cut. Make it a little more than you want in the final coil because you are going to break off some of it. Trial and error pays off eventually. Once you find the magic length it gets easier.
The key is measuring resistance before you cut. Make it a little more than you want in the final coil because you are going to break off some of it. Trial and error pays off eventually. Once you find the magic length it gets easier.
Your coils are too narrow, an 18g needle is too small try a drill bit, if after you make and test your coil it's still too high simply cut down on the amount of turns until you hit the resistance you want.
Try like a 14 guage needle. I wrap 9 times on a 14 guage with 28 kanthal and it always meters at 1.4-1.5. If you want 1.8 maybe got ot 10 or 11 wraps.
I use a 1/16th drill bit. 28 gauge - 8 wraps gives me around 1.1 ohms, 12 wraps is 1.6ohms.
I use a 1/16 drill bit ten wraps of 30 gauge kanthal gives me 1.7-1.9 ohms every time
Don't know I've never used ribbon wire but I would say probably 12 wraps of 28 on a 1/16 drill bit would get u close
The two basic rules of coil wrapping with regard to resistance are A) The length of the wire denotes the resistance of the coil. B) The guage of the wire denotes the resistance of the coil.
The longer the wire is the more resistance it will have, and the thinner the wire is the more resistance it will have. I would also check the basics, clean the connections. Make certain you have good contacts. Good luck! Post results.
The longer the wire is the more resistance it will have, and the thinner the wire is the more resistance it will have. I would also check the basics, clean the connections. Make certain you have good contacts. Good luck! Post results.
2.5-3 ohms is very high for 28 gauge Kanthal. Really, the resistance you get is determined by how long the piece of Kanthal is between the positive and negative post. Considering 28 gauge is 5.27 ohms/foot, you would have to be using 5-7 inches of it to get to the resistance you are getting. Something does not seem right with the results you are getting. It may be a short
unless my multi meter is wrong with new battery. I used 2.5 in of 30ga flat kanthal and got 3.2-3.5 so what am I doing wrong?
Touch the leads of your multimeter together and check resistance. If it's reading anything more than 0, you need to subtract that from your measured coil resistance.
You would have to do 14 or 15 wraps on a 5/64 bit to get there with 28g kanthal.
I do a 12 wrap micro coil per Rip Trippers and get 2.5 to 2.8. Don't know how he gets 1.6?
What are you putting the coil on? How long are the legs? Don't forget that any wire from the connections on = extra resistance.
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