i dont know if this has been mentioned here i got this tip from another forum ill post the link after, but i thought it was brill for 2 reasons you can clean out the carts with this the amount of juice in there took me by surprise and 2 i cant afford to buy a drip tip and this is the most cost effective way to get one, i will copy below exactley what was said:
"Take a 510 cart, pop the end cap off with a pin(i prefer to use my teeth, just bite down on it and it'll come off) inside there's a pastic ring with an hole in it, pry this out with the pin.
If you look inside there's a ledge that runs from 1 end of the cart to the other, this cant be taken out unless you drill it. Make sure the cart is aligned with bowl in the atty, then drip 2 or 3 drops down from the top. Drops will hit the ledge and drip down, the contoured shape of the cart at the bottom will ensure the liquid hits the bridge or the bowl in my case. Takes 2 minutes tops."
there ya go its so easy to do and so so cheap link to original site here
D.I.Y 510 drip tip - UK Vapers
the fellows name is shifty all credit goes out to him for this
"Take a 510 cart, pop the end cap off with a pin(i prefer to use my teeth, just bite down on it and it'll come off) inside there's a pastic ring with an hole in it, pry this out with the pin.
If you look inside there's a ledge that runs from 1 end of the cart to the other, this cant be taken out unless you drill it. Make sure the cart is aligned with bowl in the atty, then drip 2 or 3 drops down from the top. Drops will hit the ledge and drip down, the contoured shape of the cart at the bottom will ensure the liquid hits the bridge or the bowl in my case. Takes 2 minutes tops."
there ya go its so easy to do and so so cheap link to original site here
D.I.Y 510 drip tip - UK Vapers
the fellows name is shifty all credit goes out to him for this