Spirographs can make some pretty groovy designs on paper, but what if you want to take it a step further? [Uri Tuchman] has used the pantograph on his milling machine to duplicate the effect in harder ...

inspired generations of children to twist and spin gears and pens, creating designs that even the most artistic would have difficulty duplicating freehand. Now, thanks to Ann Arbor-based Kahootz Toys, ...

If you’re a child of the ’80s or ’90s, chances are you’ve spent hours tracing out intricate patterns using the pens and gears of a Spirograph kit. Simple as those parts may be, they’re actually a very ...