We’ve heard of computer aided design — but here is a system that aids the physical rendering of a design with a pen by using magnets to lock vectors into straight lines and curves into perfect circles,
This table helps you to draw precise freehand circles and lines. It is under development by a group in the Yasuaki Kakehi Lab at Keio University.
By using a computer to control the XY position of a magnet under the surface of the table, it implements, on paper, drawing methods utilized in computer graphics.
“I’ll place an ordinary ballpoint pen on the table. Now, I can semi-automatically draw a precise circle, or a straight line, or an illustration prepared in advance. In other words, while I draw with the pen, this system lets me switch to accurate rendering like in computer graphics, such as drawing a precise circle, by assisting me with the pen.”