Sample-licious: Protomold’s Protogami

[Editor’s note: Sorry I’ve been so delinquent in my posts. I promise to do a better job of keeping the blog current. If you have any suggestions for future posts, please feel free to send them to me (warrenginn at gmail dot com). Thanks for your support!]

For those of you keeping score at home, you know that I’ve been a big fan of Protomold and their most-excellent part samples/teaching aids. Last year saw the introduction of the Protomold Torus featuring a plethora of common injection molded features crammed into a lovely plastic doughnut for you to display on your desks:

New for this year is the Protogami:

The Protogami demonstrate the interaction of materials of varying durometers and surface finishes. It is made up of 3-dimensional “flexagons,” creating a kaleidocycle that exposes a different set of faces with each turn. An informational guide, highlighting the materials, finishes and design features used, is included with the Protogami components and assembly instructions.

The base structure of 6 polypropylene parts that snap together serve as an excellent example of living hinges, clips, slots and pockets. The snap-in plaques represent 6 different materials (polycarbonate, ABS, HDPE, acetal, glass-filled nylon and TPE) featuring 4 different surface finishes as well as a fifth part that you can snap in half to experience how the material breaks. A very nice addition to their portfolio.

You can check out Protomold designer Kevin Crystal’s blog post on the Protogami.

[Get your own Protogami or Torus]

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4 Responses to “Sample-licious: Protomold’s Protogami”


  1. 1 Bryan October 19, 2011 at 10:58 am

    When I left the comment, yesterday, wishing for more blog posts … I didn’t expect this. Now? I want a Protogami!

  2. 2 Warren Ginn October 19, 2011 at 11:13 am

    Yup, they’ve got some really great teaching tool. I use them in the class I help teach at NC State.

    • 3 Bryan October 19, 2011 at 12:48 pm

      Two consecutive blog posts. You’re on a roll. In fact I’ve forwarded your link to the other innovation lab members. I think these sorts of posts are important for them to see. Question: If the tools are good for students are they equally useful to you with clients?

  3. 4 Warren Ginn October 19, 2011 at 12:57 pm

    I think they are useful for clients. For clients they are intended to showcase Protomold’s molding capabilities and selection of materials and finishes while for students it’s more about educating them about the process itself (or both).


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