Hello I have the coil master DIY Kit V3 and if you're familiar with this series of kits they have tools for wrapping your own coils, they consist of a metal pieces of varying size indicated as 15,20,25,30,35,40. I'm unsure of these values stand for mm or what. Basically I like to wrap my coils using the 30 size. Can anyone who uses this kit regularly have estimates for the amount of wire to make single coil wraps that are composed of say 6,7,and 8 complete turns? I hate wasting a few inches of wire to make a 6-turn coil or coming up short and not having enought left over length to tighten it into the posts.
Wire Length Question
- Thread starter Abezii
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Just guessing here, but it sounds like you’re missing the decimal points.
2.0, 2.5, 3.0, 3.5, and 4.0mm
Yup, those are mm but they left out the decimal point, which would have made it more obvious. As to the length of wire required, I probably cut off more than I need to avoid the not quite enough problem. Wire is extremely cheap, and if I waste a few inches I’m not terribly concerned.
You can estimate it yourself. Next time you wind, measure the amount of wire you cut for your build. Then measure what is left over. That would be the amount, probably plus 0.5 inches (at least I would do that) just to have a little extra wire in play.
Anna
Anna
If you use Steam Engine, www.steam-engine.org, you will see the length of wire needed in the upper right hand corner. I have highlighted it in yellow. You will want to add a little length to it to work with.
Awesome! i'm playing with it, is there a special way to account for clapton coils? I imagine since the core coil is wrapped it would add to the total length needed.
Nope. The wrap wire carries no current. It’s just there to add surface area
I'm not sure I understand your question. There would be no length added to the core wire(s). The wire used for wrapping would be hell to calculate obviously if you are making your own claptons. As mentioned by @bombastinator, the electrical length of the wrap wire is effectively infinite as compared to the core wires. The wrap wire is primarily heated by conduction.
Well...the outer wrap makes the overall diameter thicker, which means a larger diameter at the wire's center line, and so a slightly longer wire is needed to make the same number of wraps. But it's negligible. Also it does carry some current but, again, it's negligible (in terms of conductance, the outer wrap is super thin and really long, so it has very high resistance and thus very low conductance. When you add this to the considerably-higher conductance [lower resistance] of the core wire, it's not changed by very much at all and, thus, the overall resistance is not changed by much either.)
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