Simply activate the drawing pen, and click and drag a rough outline of a simple geometric shape. This tool works with most 2D ...

An ordinary ballpoint pen is held in a spring-loaded carrier ... which uses Canny edge detection to create an outline drawing, then fills in the empty bits to create bright and dark areas.

It’s a simple robot that drags a pen around to draw on paper ... The robot does a good job of plotting out a drawing on a small scale, with [Tim] using it to outline his name on paper.

To begin with,we're going to draw an outline, so no detail ... We've been using pencils and chalk, so why not try pen and ink or perhaps using blackand white instead of colour?