Hypotrochoid Art Set

by ComputerGear

Product Features

• Hypotrochoid Art Set
• Just like you remember as a kid!
• Set contains 2 templates, each with 3 gears plus red green and blue pens
• Makes learning math fun
• Traces out hypotrochoid and epitrochoid curves turning math into beautiful art

Product Details

• Item Weight: 9.6 ounces
• Shipping Weight: 9.6 ounces (View shipping rates and policies)
• ASIN: B002OSOZMU
• Amazon Best Sellers Rank: #25,523 in Toys & Games (See Top 100 in Toys & Games)
• Average Customer Review: 4.6 out of 5 stars  See all reviews (10 customer reviews)

Product Description

Turn math into art. Classic Hypotrochoid Art Set traces out hypotrochoid and epitrochoid curves turning math into beautiful art. It's easy and fun -- a hypotrochoid is a roulette traced by a point attached to a circle of radius r rolling around the inside of a fixed circle of radius R, where the point is a distance d from the center of the interior circle.

Customer Reviews

Most Helpful Customer Reviews

19 of 19 people found the following review helpful:

3.0 out of 5 stars I have purchased a few different sets. . ., June 9, 2011

By 

Melissa Wisely - See all my reviews

= Durability:2.0 out of 5 stars  = Fun:3.0 out of 5 stars  = Educational:3.0 out of 5 stars 

This review is from: Hypotrochoid Art Set (Toy)

On a recent trip to a local store, I found a Hypotrochoid Art Drawing Set, which reminded me of the Spirograph that I played with as a child. The packaging was sealed, but it was on sale, so I went ahead and purchased it. Wish that I had seen the images here on Amazon first - it comes with 6 gears and 3 frames - but it's actually 2 sets of the same 3 gears, and 2 of the frames are the same size. (The holes in the gears are small, so only the 3 pens that come with and Pilot Precise Extra Fine V5 pens - which are more expensive than the set - work.)

Next, I found the Create Your OWN Spiral ART kit at another local store. Also sealed, this one has 2 frames and 5 gears - problem: because of the teeth on the gears, only 2 large gears fit in the large frame, and 3 small gears fit in the small frame. The teeth on the gears are large, so they don't really slip the way that the old Spirograph kits did. The shapes are interesting and most pens work with it, so it works pretty well.

Thought I had finally found my answer when I saw the Cra-Z-art Spiral Set from the photo on the box, and the product photo that shows gears of multiple shapes (football, plus sign, etc). The set that I received included 3 frames (round, oval and kidney bean shaped) and 7 ROUND gears of varying sizes (the number of teeth are marked on each gear - 17, 18, 22, 27, 29, 30 & 33.) No other shaped gears - just round. One good thing about this set is that the holes in the gears are large, so just about any pen will work. For the price of this set (and since I'm an Amazon Prime member, I received free shipping) I'm not unhappy.

But at this point, I wish that I had put all the money that I had spent on all 3 sets and the Pilot Pens together to find an old, real spirograph set.

18 of 18 people found the following review helpful:

5.0 out of 5 stars So much fun!, February 18, 2010

By 

M. Cruz (Washington, DC, USA) - See all my reviews
(REAL NAME)   

= Durability:5.0 out of 5 stars  = Fun:5.0 out of 5 stars  = Educational:5.0 out of 5 stars 

This review is from: Hypotrochoid Art Set (Toy)

Spiral Draw Book (Klutz)

Since this is made of plastic, I thought it would be crappy. It's easy to use and so much fun. You get smaller spirals with this set than those from the Klutz Spiral Draw Book. I recommend getting both. No duplication.

17 of 17 people found the following review helpful:

5.0 out of 5 stars This is the original spirograph in a tin., August 23, 2010

By 

L. McLain (Lancaster, CA) - See all my reviews
(REAL NAME)   

= Durability:5.0 out of 5 stars  = Fun:5.0 out of 5 stars  = Educational:5.0 out of 5 stars 

Amazon Verified Purchase

This review is from: Hypotrochoid Art Set (Toy)

I tried finding the original Spirograph but instead found this little tin full of the best gears for Sprirgraph type fun.