The original question:
"Hi,
I'm french and i live in Montreal so excuse my english...
I have a Singer 319W since some month and i like this machine for my first time in sewing. I want to explore another way with it but i have some needle 206x13 (12 and 14) and i need 18 or other for hard fabric. And the 15x1 needle attack the stock bobbin case...
I read that exist some bobbin case, as the original 319W bobin case, but open and not closed like mine, some alternative bobbin case. But i don't have the reference of them, like Riccar or common industrial bobbin.
I ask for that because i don't have the tool to adapt/modified my case.
Thank you so much
Geraldine"
Geraldine, welcome. I can't speak for all of us here but I hardly ever stray from the vintage section. That's my strongest area of interest. I think most of the others here are about the same. Thanks for pointing this out Sharyn.
I know others have ground out part of the bobbin case to clear the 15x1 needles. I don't own one so I can't show you where to remove the metal.
The 206 class needles this machine uses are only available new in a couple sizes as you're already aware. You can try finding vintage needles in the sizes you want on Ebay. I know that's what some of the members here do.
I hope this helps,
Rodney