I use a syringe to refill cartridges from whatever bottle of ink I want to use. The cartridges can be reused many many times.
edit: lol, if I had reloaded the page before commenting, I would have seen all of these people saying the same thing!
edit: lol, if I had reloaded the page before commenting, I would have seen all of these people saying the same thing!
Every time fountain pens come up on HN I'm amazed how active the discussion gets.
* Fountain pens * Mechanical watches * Cars with clutches