which provides just enough pen-to-paper pressure to reliably draw lines without lifting off or scratching the paper. We can’t help but be impressed with the overall look of the machine ...

It’s a simple robot that drags a pen around to draw on paper. [Tim] decided to build one that uses a simple skid-steer design to get around the page. An Arduino Nano is the brains of the ...

Try experimenting with different colours of ballpoint pen to create layers of texture. Light-coloured felt tips can easily pick up darker colours from a drawing surface. This can be avoided by ...