Raise Ω?

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ricks

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What are you going to use to make the holes, a paper punch?
A paper punch will be way too large. I need to figure out how to make these holes... I was thinking of trying one of those belt hole punches??? I thought I had one but can't find it yet. It has several different sizes and should work.
 
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UncLeJunkLe

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A paper punch will be way too large. I need to figure out how to make these holes... I was thinking of trying one of those belt hole punches??? I thought I had one but can't find it yet. It has several different sizes and should work.

They make paper punches that make smaller holes than the average paper punch. They might be called something else. I don't know if you'd find something like that at the dollar store. Would likely be too expensive at an office supply store or craft store.

But I wonder if a paper punch would work anyhow. Might damage the mesh in the process. Not sure.
 

UncLeJunkLe

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If you have of an old MTL clearomizer, with a metal chimney, the chimney might work as a punch. Should be small enough.

ETA: The Aspire ET and Mini Vivi Nova chimney is 4.45mm outer diameter with a 3.85mm inner diameter. That's a 0.3mm thickness. If that's too thick to get a nice clean punch, slightly filing down the edge at an angle should so the trick and make for a decent punch.

Evods have a slightly wider chimney but very close.
 
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Ed Brown

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That picture shows a Mesh with 9 Rows of Holes. And 10 Rows of Metal between the Hole Rows.

If you remove 1 Row of Metal, then it would be Interesting to see if the Resistance Increased 1/10th of the Resistance of the Mesh before you cut anything?

Resistance is inversely related to the cross sectional area of the wire. If you reduce the cross section by half, the resistance doubles. If you start with 10 wires in your mesh strip, measure the resistance of it, you can do the math to get to the number of wires you want.

In zoidman's example, removing one wire would increase the resistance by a factor of 10/9 or 1.11 or 11%.

Removing 5 wires would increase the resistance by a factor of 10/5 or 2.0 and double the resistance.

zoidman, your instincts were right. Punching holes in it would surely cause hot spots.

Round wire isn't as easy. Doubling the diameter reduces the resistance by a factor of four.
 
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Superuser187

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Think of mesh like a simple wire from one end to the other straight......cutting it will be like making it thinner so the ressistance will go high and I guess to get the highest resistance without losing much surface area u would need to cut it like this...lol
DZ5XqMzX0AEigef~2.jpg
 

Izan

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Resistance is inversely related to the cross sectional area of the wire. If you reduce the cross section by half, the resistance doubles. If you start with 10 wires in your mesh strip, measure the resistance of it, you can do the math to get to the number of wires you want.

In zoidman's example, removing one wire would increase the resistance by a factor of 10/9 or 1.11 or 11%.

Removing 5 wires would increase the resistance by a factor of 10/5 or 2.0 and double the resistance.

zoidman, your instincts were right. Punching holes in it would surely cause hot spots.

Round wire isn't as easy. Doubling the diameter reduces the resistance by a factor of four.

Ahhh, Bach!

It took a few days, but eventually I was able to visualize a multi-core coil and, as individual wires/cores are removed, the resistance will obviously increase. :facepalm:

Hat tip to @ricks for the mental exercise and a new way to approach mesh coils.

Cheers
I
 
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ricks

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Think of mesh like a simple wire from one end to the other straight......cutting it will be like making it thinner so the ressistance will go high and I guess to get the highest resistance without losing much surface area u would need to cut it like this...lol
View attachment 937811
I am going to try this... Looks easier then punching holes!!
 
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