That sounds interesting! Would like to see an example when you are done. Maybe you should make art caps for carto tanks, and I can make the glass for it

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I've been doing a bunch of research on drip tip o-rings, and here's the dimensions I found.
"standard" O-ring size for 510 drip tips: 1.5mm CS x 6mm ID x 9mm OD
and
MadVapes claims theirs are:
9.44 mm outside diameter
6 mm inner diameter
(which means their wall thickness should be 1.72mm (who sells that? and is that 1.5 or 2mm in standard O-ring sizes?)
The actual measurement for the inside of a carto is a bit LESS than 9mm (because the carto IS 9mm, but the thickness of the metal is less than 1mm)...possibly 8mm, but you have to have room for 'squish'.
That's clear as mud, which means that you have to test for sizes anyway

. I just now pulled one of the O-rings off of a regular drip tip and popped it onto one of my newly ground glass ones... and while it fits fine, because I have no groove, it won't work. But the one I used was also 1.5mm thick too, so I don't know if 1mm would work.. or I MUST put a groove in there.
Such a pain getting everything sourced, isn't it? I want to make tanks too, and THAT's a whole lot of measuring, since tanks come in so many different sizes... and what tanks do I want to make replacements for?
I already made some tanks, here:
I got the outer diameter perfect... but the grommets I bought from High Valley Vapes do NOT fit the cartos I got from them, they leak at the carto joint, which isn't anything I can fix. The glass to silicone seam is perfect, but they are unusable because the grommets they sell don't fit their carto tanks they sell. They make some lovely tanks, but I don't think they use the same caps they sell, as there's no room in the inner ring of the grommets to put an o-ring to hug cartos on the ones I bought from them.
However, I realized that even if it did fit, I'm not putting cheap caps on that much glass work anyway. So I'm just going to make decorative replacement tanks for my glass tanks.
I've just been obsessing over juice blending and equipment lately. Need to work the vape gear hoarding out of my system before I get serious

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