![](https://pro2-bar-s3-cdn-cf1.myportfolio.com/77c5171c9b9675792118338e803e3746/933ae81e-ffe3-4a9c-90d2-9eee310f2695_rw_3840.jpg?h=0ef67cfa60154f6e4585620beb78184b)
HARRY: PARAMETRIC PULL TOY
Fall 2018 - 6 Weeks
Parametric Product Modeling with professor Kevin Shankwiler
Created with Michael Armstrong
CHALLENGE: Create a parametric pull toy for an adult with four distinct configurations. Manufacture one of those four using a CNC router.
MY ROLE: Concept development, CAD modeling, photography and renders.
Tools and techniques used include parametric modeling in Fusion 360, rendering in Keyshot, and photo editing in Photoshop.
![](https://pro2-bar-s3-cdn-cf6.myportfolio.com/77c5171c9b9675792118338e803e3746/a06b60d0-beb0-469d-99bd-9d9918ec85ec_rw_1920.jpg?h=1cd19a6a0c7321c31716bbbaf4adc366)
Why a horseshoe crab?
Horseshoe crabs are really cool critters, but also make for a ridiculous seven-foot pull toy.
Four moods
We were asked to make configurations for each of four moods: aggressive, cautious, chill, and oblivious. These had to affect the way a rider sat on our toy, and how the toy itself was shaped. Here's how I interpreted those moods:
![](https://pro2-bar-s3-cdn-cf4.myportfolio.com/77c5171c9b9675792118338e803e3746/f51fd840-f5f8-4b7e-adef-e1ff9baaf922_rw_1920.jpg?h=95aed124a3ff8f40eea28faafcf29a78)
Mass Customization
![](https://pro2-bar-s3-cdn-cf3.myportfolio.com/77c5171c9b9675792118338e803e3746/ef73c411-3fcb-4dea-a698-83bc8c081114_rw_1920.jpg?h=36f7424b8659246200b68e1d62f21f47)
Examples for shorter and taller persons.
The model we made (we call him Harry) is Cautious and fits a 5'4" person perfectly.
![](https://pro2-bar-s3-cdn-cf6.myportfolio.com/77c5171c9b9675792118338e803e3746/7a153a12-5d92-4057-b055-9d8c350c69ec_rw_1920.jpg?h=292e561f2252920755dafcae31e022cb)
![](https://pro2-bar-s3-cdn-cf2.myportfolio.com/77c5171c9b9675792118338e803e3746/3947dfd6-299c-4d7b-96a7-1303f8abde02_rw_1920.jpg?h=f60298e241d114a020da365925a3daad)
Harry and friends, from left to right: airplane, biplane, hedgehog, sailboat, Harry, lion, and squid.