DIY Nib Grinding: How-to Grind Your Own Fountain Pen Nib

(image: Merritt Maestro Fountain Pen Handcrafted in Golden Box Elder Burl w/ Rhodium and 22k Gold fittings. Photography by Richard Lee Merritt)

How to Grind Your Own Nibs in Just a Few Steps
Online Nib Grinding Guide by Ludwig Tan
Here's a fantastic article published years ago at Glenn Marcus' website.
The article was originally published in the Journal of the Society for Italic Handwriting, Writing Matters, Autumn 2000 & Spring 2001.

This is a fantastic article that thoroughly explains the Why and How to polish and grind the nibs of your fountain pens, complete with hand drawn illustrations.
 
In the article Grinding Your Own Nibs, Ludwig Tan covers the following topics:

► Why grind your own nib?

► Choosing a fountain pen - what is available?

► Grinding your nib

► Preparing the pen

► Understanding the shape of an Italic nib

► STEP 1:Flattening the Base of the Nib

► STEP 2: Flattening the Top

► STEP 3: Flattening the Writing Edge

► STEP 4: Grinding a Nib Down to a Finer Width

► STEP 5: Sharpening the Chisel Point (or, sharpening a blunt nib)

► STEP 6: Polishing & Smoothing Your Nib

► READ THE ARTICLE: Grind Your Own Nibs