Why are my ohms so far off from steam engine's calculations?

[Fudgey Finger]

I have been building almost exclusively with Kanthal. I just got some Ni-80 and I wanted to make some 3-core aliens. When I put everything in steam engine it said the coil would be .261 ohm, but when I built the coil it was less than .05 in dual coil. I thought I might have made a mistake somehow so I built another pair of coils with the same specs 3*26 ni80 with 34 ni80 wrap. Here is a screen shot of wire wiz








If anyone has any idea of what I could be doing wrong I would really appreciate the input. I have tried these coils in my Petri 24 as well as my tsunami 24 with the same resistance on both.

 

[MrMeowgi]

I have been building almost exclusively with Kanthal. I just got some Ni-80 and I wanted to make some 3-core aliens. When I put everything in steam engine it said the coil would be .261 ohm, but when I built the coil it was less than .05 in dual coil. I thought I might have made a mistake somehow so I built another pair of coils with the same specs 3*26 ni80 with 34 ni80 wrap. Here is a screen shot of wire wiz
View attachment 95028







If anyone has any idea of what I could be doing wrong I would really appreciate the input. I have tried these coils in my Petri 24 as well as my tsunami 24 with the same resistance on both.

I can never get that one to work on anything but round wire. Haven't messed with it much. I use the vape tool app for Android.

Sent from my Nexus 6P using Tapatalk

 

[The Cromwell]

I only do round wire, single or parallel so no help from here.
Sorry.

 

[Fudgey Finger]

I can never get that one to work on anything but round wire. Haven't messed with it much. I use the vape tool app for Android.

Sent from my Nexus 6P using Tapatalk

I tried that app (I had to buy the pro version though) and it gave me the correct resistance. Thanks for telling me about it!

 

[MrMeowgi]

I tried that app (I had to buy the pro version though) and it gave me the correct resistance. Thanks for telling me about it!

Hell I've used it so long I forgot about the pro version. Glad to help.

Sent from my Nexus 6P using Tapatalk

 

[bmclaurin]

Mine are usually very close to steam engine once the hot spots are worked out. You sure you don’t have some hot spots to work out? Also, a leg length of 1mm seems pretty short, hard to believe each leg is only 0.5mm. Maybe try inputting 3-4mm which is probably closer to reality.

 

[Fudgey Finger]

Mine are usually very close to steam engine once the hot spots are worked out. You sure you don’t have some hot spots to work out? Also, a leg length of 1mm seems pretty short, hard to believe each leg is only 0.5mm. Maybe try inputting 3-4mm which is probably closer to reality.

Hot spots wouldn't account for that much of a difference. I used the shortest possible leg length to err on the side of caution. Inputting a longer leg length will raise my resistance which steam engine is already giving too high of a resistance calculation anyway.

Sent from my LGL64VL using Tapatalk