I know the main thing I saw on this suggested to align the cart with the bridge of the atty. You can search for a vid but I will try to explain:
The cart end that goes into the atty is rectangular, if you look at the bridge in the atty it is a C or U type of shape with the open end pointing down. Simply align the D shape of the cart end (closest letter to shape of actual cart end I think) so it goes around the shape of the bridge.
If you are not aligning it, the narrow sides of the D will come close or actually connect with the Bridge.
Also the flat tip carts seem to be thinner (the part that goes into the atty at any rate), and as such would likely melt faster than the bit thicker round ones. My round one below did melt also though.
Not all bridges are the same in an atty, I have High bridge types so this may be more of an issue with a big pointy bridge than the lower bridge types.
While speaking of att'y, not all are created equally for sure. Some from the same box here will run much hotter than others while others run a lot cooler. Obviously a hotter one would melt stuff easier
I can say that after trying to align and still having the issue, trimming a bit off the ends made the issue go away here for me.
I trimmed approx 1/8th inch off mine, and this works VERY well for me.
I used a box cutter. An exacto knife or other razor blade type is good also.
Dremel, hack saw, file etc not reccomended as its too much Cow Bell!
Top: stock 510 cart.
Bottom: trimmed 510 cart.
Right, the trimmed off section (with a burnt notch on top)
(We need Bandit to make better pics!)
Edit: After trimming I still get a wee divot in my filler (this is good as it can wick still) before trimming the divot was a lot deeper in the filler
And bandit, I just
vape on mine and this happened after using the same cart and atty for a week. (yes I refilled/washed the filler etc) Only thing I can guess is long term heat exposure degraded the tip of the cart to the point it finally melted? Unless we has a professor of thermo dynamics around perhaps this simple explanation might have to do. I can assure you that after 25+ years of smoking it is NOT like I am taking 10-20 sec drags on it
Only other thought might be is an untrimmed cart is actually connecting with the base/bottom of the atty's well and thus conducting more heat.
I have only used the thin band high bridge atty's, I did get in some of the fat gold band style tw-titan atty's so will try them before long to see if they do the same or not.
Anyhow as this was of intrest to me I have been looking for posts of this nature and it seems to happen to more than a few people.
