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What's the difference between VV and VW? Simply this: Take the desired wattage and multiply it by your resistance and take the square root. That's the voltage.

It's not the screw. It's the length of the center post insulator. Adding a gasket to the screw will cause the screw head to protrude out more and will contact the terminal. You may switch out the insulator but the new one may not be any better. Try to save the insulator because they're hard to...

Punch a hole in the tape, insert screw, and trim the edges with a razor blade. It will be enough to lengthen the central pin screw.

I build a washer out of 4 thicknesses of scotch tape. Problem solved.

At home I use a Provari with a Kayfun 3.1 mostly. Sometimes I use a AGA-T2 and an IGO-L for testing flavors. I'm getting an Zen Z-Atty-Pro for my birthday. When I'm out and about I use an EGO Spinner with an old fashioned Vision Vivi Nova Mini stoked up with a strong flavored tobacco. I vapr...

I liked to smoke cigars. Maybe 1 a day. But anything worth smoking will cost you at least $10 a pop. My brother in law gave me an e-cigar with a flavor that flipped me out and I've been vaping since then.

None of the options of the survey fit me. If they ban nicotine I'll get lab equipment to measure nicotine levels and go organic. I'll be so furious with the government that I'll grow my own tobacco so I won't have to pay their taxes.

I like nicotine. Last winter I drove home on 200 miles of ice covered roads. I couldn't have done it without NIC and coffee.

Don't get me wrong. I think % is best for large samples. I also think that the overall flavor is more determined by the relative proportion of the flavors. if you are close.

I think that it's right at the tip that counts. The model is crude but I got within 6% to actual tests which is darn good for an engineering model.

I'm sharing this because I did a lot of work on it. I was as confused as ENAUD when I first got into DIYing.

When I do a test I do it with water, PG, and VG.

zoiDman,, the theory is that the surface tension force is proportional to the circumference of the tube. This is balanced by the weight of the drop at the point of release. The constant of proportionality is the coefficient of surface tension. Wikipedia has a good article under Pendant Drop Test.

The model is (Volume) x (density) x (acceleration of gravity) = (pi) x (diameter at tip) x (coefficient of surface tension) x sine(angle of contact) The drop detaches when the angle of contact is 90 degrees, i.e. sine(90 degrees) = 1. Plug in the values of density and coefficient of surface...

zoiDman, you are partially right. I should have said tube circumference not diameter. I was off by pi. You are off by the radius.

Remember, I'm talking about PG, not water.

Leaded50, A standard eye dropper you get in the store for medicine gives 20 drops per ml for water based liquids. The thin eye droppers I got from Wizard Labs drip 60 drops for ml. The tube diameter determines it.

Heabob, your .025ml per drop is dead on the mark, but for PG only.

A standard eye dropper gives 20 drops per ml. This is the standard definition of a metric drop. If you test it out, it works. But this is for water base solutions and it doesn't work for PG or VG. According to the Pendant Drop theory, surface tension force is proportional to the...

Forgive my sideways picture. I'm a lurker trying to get my fifth post.