Spirograph Gear Math. This gear becomes important in spirograph-style projects because tooth count is everything. There really aren’t that many spirograph designs that can be made with LEGO, ...

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 har… ...

Spirograph, a geometric drawing device, creates mathematical roulette curves known technically as hypotrochoids and epitrochoids. In simpler terms, it's a toy that uses gears to produce intricate ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Media Platforms Design Team Spirographs are used by grade school kids to decorate ...

CLOVER. What’s the fewest number of squares, octagons and triangles needed to fill a large rectangle? What type of Spirograph gear creates a floral design with the most petals?

Kahootz also put some new twists on the Spirograph, including the introduction of SpiroPutty to hold the gears to paper. ““The earliest version had metal pushpins to hold the plastic pieces down.

When a British engineer named Denys Fisher introduced the first Spirograph set at a toy fair in 1965, he tapped into a demographic of non-artists who really wanted to create art. Those sprocketed ...

The Spirograph is a geometric drawing toy that produces mathematical curves known as hypotrochoids and epitrochoids. It was developed by British engineer Denys Fisher. Drawing toys based on gears have ...

When a British engineer named Denys Fisher introduced the first Spirograph set at a toy fair in 1965, he tapped into a demographic of non-artists who really wanted to create art. Those sprocketed ...

Customers try out the Spirograph display at Learning Express on Saturday.Daniel J. Brenner | AnnArbor.com The Spirograph inspired generations of children to twist and spin gears and pens, creating ...