Pen and ink:

A few tips to be aware of when working in pen and ink:

1. The humidity level of your environment will affect the ink flow in your pens.

2. Paper absorbs inks at different rates- a cold press paper will absorb the most ink, having a soft, feathery ink line.  Hot press paper is less likely to absorb, but sheep skin or calf skin absorb the least amount of ink, and the image will almost sit upon the surface.  Those are for professional-level papers; student-level papers will act the same, but more so.

3. The best way to learn control over ink and pen is to work with a crowquill nib in a nib holder.  And in black ink.  You will have to control the ink flow, control the "blobs", know what you are going to put down before you draw it, and mistakes will be more visible.  Its the best way to learn to be better.

4. The tip of a pen is called a "nib", not a tip.  The nib will transfer the ink from a reservoir to the paper.  In crow quil nibs, or other dip pen nibs, the reservoir is the nib itself.  In technical pens, there is a small reservoir that holds ink.

5. Fountain pen inks will work in fountain pens, and you can use fountain pens to draw beautiful things.  Acrylic inks may be used in technical pens, but check the bottle or ask the manufacturer / seller if the ink is safe for a technical pen.  Shellac-based inks, such as some Winsor and Newton inks and other specialty inks will clog and ruin a tecnical pen.  FW Acrylic ink is very similar to the "old" Rotring Artist Color Inks (which are no longer made), and is safe for technical pens.  I think Noodler's has the best fountain pen inks, but I wouldn't put them in my technical pens.  A dip pen can use any ink.