However, it's difficult to make ballpoint pens that maintain good circuit-writing performance because the tips can clog ... design a cheap and effective pen-and-ink system. Building on prior ...

Although it is a pen and ink show, works won't only be ... They will employ a variety of techniques, including cross-hatching, line drawing and Weibley's specialty, stippling.

The pen’s body is molded, and then the ink, made using a blend of pigments and solvents, is carefully formulated and filled into each pen. Once assembled, each pen undergoes rigorous testing to ...

If pen and ink were not available, he had recourse to soot, coal dust, and coffee grounds. Huge made more than 4,000 drawings, which range from moody, dark landscapes to caricatures to ...

A noteworthy example is the Amazon Kindle Scribe, a 10.2-inch E Ink tablet with ... its writing and drawing features. A pack of ten replacement tips for your Kindle scribe pen, along with a ...