How Does A Fountain Pen Work!?
I do a quick dive into the nib, cartridge, why capillary action is key and why air in and out of the cartridge can make or break an awesome pen!
Hope this explanation doesn't miss much, if so, add a comment below

For more info on my work check out
www.schondsgn.com

I manufacture fountain pens in my Philadelphia workshop. Lots of fun machining content on how these fountain pens are made can be seen on my instagram @schon_dsgn