<div id="cookie_notice" class="sw-row sw--padding-2 sw--padding-bottom-1-force sw--text-center sw--bg-grey" > <div class="col-1-2 col-1-1--tab col--no-padding sw--display-inline-block sw--float-none sw--text-left sw--vertical-align__middle"> <p class="col-1-2 col--no-padding small">We use cookies to offer you a better browsing experience. By continuing to use the site you agree to their use. You can find out more about our cookies and read our privacy policy <a href="/legal/privacy-statement" target="_blank">here.</a></p> <div class="col-1-2 col--no-padding sw--text-center"> <div class="col-1-2 col--no-padding sw--display-inline-block sw--float-none"> <a class="sw-dms-button noty_close col-1-1 col--no-padding" data-sw-set-cookie="euCookie">OK</a> </div> </div> </div> </div>

<div class="sw--display-block sw--text-white" style="background-color: #1e2740"> <div id="emailModalContentContainer"> <span class="noty_close sw--position-absolute sw--position-right sw--padding-top-3 sw--padding-right-3 icon-cancel sw--opacity-8 sw--z-index-10"></span> <div class="sw-row"> <div class="sw--position-relative sw--display-block sw--padding-3" style="min-width: 380px"> <p class="sw--font-size-16 sw--margin-bottom-2 sw--margin-right-6">Sign up to hear about special promotions</p> <form action="/register/email-signup" class="sw--position-relative" data-confirmation="emailConfirmationModal" data-sw-email-modal-form> <input type="text" class="sw--input-height__medium" style="width:60%;" placeholder="Email address" name="email" /> <input type="hidden" class="" name="location" value="/product/M6KHVSF6Y/3d-auxetic-up-6x6x6" /> <input type="hidden" class="" name="confirmation" value="emailConfirmationModal" /> <input type="submit" class="btn-primary sw--margin-left-1" value="Subscribe" /> <div id="emailModalFormError" class="text-error" style="display:none"></div> </form> </div> </div> </div>

Click and drag to rotate
3D Auxetic (up 6x6x6) 3d printed

DIGITAL PREVIEW
Not a Photo

White Natural Versatile Plastic
3D Auxetic (up 6x6x6) 3d printed
3D Auxetic (up 6x6x6) 3d printed

DIGITAL PREVIEW
Not a Photo

3D Auxetic (up 6x6x6)

Made by
Not For Sale
$46.05
3D printed in white nylon plastic with a matte finish and slight grainy feel.
Product Description
This is a first attempt at making an "Auxetic" material. When compressed in the vertical direction, it shows the rather unusual behavior of contracting in the other two directions. If one assigned a Poisson number to the assembly, it would be negative. You could consider this a "mechanical metamaterial". See Wikipedia for more information: http://en.wikipedia.org/wiki/Auxetics. Thanks to my friend Greg for introducing me to Auxetics.

--

Technical Note: Lots can be improved going from this first try:
- compression in x/y leads to buckling: try introducing double parallel horizontal linkages to avoid
- actually, a 3x3x3 unit (or whatever one can afford) would be cool, and might also help with the buckling
- at maximum compression, the 4 hinges meet and interfere much less elegant than desired
Details
What's in the box:
3D Auxetic (up 6x6x6)
Dimensions:
9.13 x 9.13 x 2.3 cm
Switch to inches
3.6 x 3.6 x 0.91 inches
Switch to cm
Success Rate:
First To try.
What's this?
Rating:
Mature audiences only.
Sign In or Join to comment.
 
 
Logo

Hello.

We're sorry to inform you that we no longer support this browser and can't confirm that everything will work as expected. For the best Shapeways experience, please use one of the following browsers:

Click anywhere outside this window to continue.