You might want to attempt to create a nib that fits into and older low cost FP - a Wearever for example.
Also, I would think that if you refined the nib so that it wrote smoothly enough and with some flexibility or other desired quality people might purchase just the nib work.
If you think it's really worth investing time and energy you might consider evaluating "crowd-source" funding.
Thanks. I thought about selling the nib units, but I'm just not sure they would fit "any" pen, and I don't want to sell anything unusable.
Crowd-sourcing is a good idea, but I think I need to spend a lot of money for doing it. I would need to be prepared for larger scale manufacturing, and it has a good chance of failing. And I don't have any money.
If this could be done on a platinum preppy or cheaper founain pens(i meant other cheap fountain pens), it would be awesome and a fun pen to try out. How does it feel for long writing sessions?
It's okay for long writing sessions, it doesn't feel too different than another fountain pen nib. It's smoother than some of my nibs.
A Preppy... I can try that when I have the chance.