<div class="sw-email-modal sw--display-block"> <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"></span> <div class="sw-row"> <div class="sw-email-modal__copy sw--position-relative sw--display-block sw--padding-vert-4"> <p class="last sw--font-size-16">Sign up to get email alerts on discount promotions. There might be one very soon...</p> <form action="/register/email-signup" class="sw-email-modal__signup sw--position-relative" data-confirmation="emailConfirmationModal" data-sw-email-modal-form> <input type="text" class="sw-email-modal__signup-input sw--input-height__medium" placeholder="Email address" name="email" /> <input type="hidden" class="sw-email-modal__signup-input" name="location" value="/product/HYV73VL2C/trapped-outside-track-only?li=shop-results&amp;optionId=1604320" /> <input type="hidden" class="sw-email-modal__signup-input" name="confirmation" value="emailConfirmationModal" /> <input type="submit" class="btn-primary" value="Sign Up" /> <div id="emailModalFormError" class="text-error" style="display:none"></div> </form> </div> </div> </div>

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Trapped Outside (track only) 3d printed

DIGITAL PREVIEW
Not a Photo

White Strong & Flexible
Trapped Outside (track only) 3d printed cut away
Trapped Outside (track only) 3d printed cut away

DIGITAL PREVIEW
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Trapped Outside (track only) 3d printed Ordinary view
Trapped Outside (track only) 3d printed Ordinary view

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Trapped Outside (track only) 3d printed Three-way intersection
Trapped Outside (track only) 3d printed Three-way intersection

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Trapped Outside (track only) 3d printed smooth join
Trapped Outside (track only) 3d printed smooth join

DIGITAL PREVIEW
Not a Photo

Trapped Outside (track only) 3d printed
Trapped Outside (track only) 3d printed

DIGITAL PREVIEW
Not a Photo

Trapped Outside (track only)

Made By
OVERVIEW
  • 3D printed in White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
  • Be the first to try. Learn more
  • This product is intended for mature audiences.
$7.99
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Product Description

This is a model of Boy's Surface, a one-sided surface with no edges and no pinch points.

Other versions:

This is a modified version of Trapped Outside, without the internal ball.

The original design is here: http://www.shapeways.com/model/40473/trapped_outside.html

Solid, hollow inside: http://www.shapeways.com/model/233704/trapped_outside__solid_with_hole_.html

Solid: http://www.shapeways.com/model/233703/trapped_outside__solid_.html

Remember to give this model five stars if you like it!

© 2011, Matt Chisholm. All rights reserved.
What's in the Box
INCM
Trapped Outside (track only)
White Strong & Flexible
Width
2.5 cm
Height
3.8 cm
Depth
3.6 cm
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