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Survival Bracelet

Lost in the wilderness? A few feet of paracord for making a bow drill fire set or for a thread to fish with might save you. This bracelet gives you 7 feet of paracord right on your wrist. Both styles of buckle are remixes of designs used for nylon webbing. The paracord is available in many colors from Home Depot for about $3 for 50 feet. The total cost to make a survival bracelet is less than $1 per bracelet. Whether you are new or old to 3D printing, this is a fun and useful project which you can complete in less than an hour.

Update: I've included a design for a side latch buckle. Now there are two styles of buckle to choose from. Be sure to use supports for side latch buckle female prints.

Once you print the male and female buckles, space them at about 7.5 - 8 inches apart at the openings and follow the photos for weaving the paracord. IMPORTANT: Be sure that each successive knot alternates which side goes under the two main cords. You must alternate back and forth otherwise the bracelet will have a twist in it. When you finish the final knot, trim the cords and lightly melt the ends with a lighter to keep them in place.

ALSO IMPORTANT: For the side latch buckle, print the female part with internal supports otherwise the print will fail. After printing, knock out the supports with a small screwdriver and cleanup excess plastic with an Xacto knife.

Print Settings

Printer brand:

RepRap

Printer:

Prusa i3

Rafts:

No

Supports:

Yes

Resolution:

0.1mm

Infill:

100%

Notes:

Be sure to use 100% infill to make the buckle sturdy. I used PLA but ABS would last longer. I didn't have to do any post processing to get the buckle to operate. All clearances seem to be good.

Extruder 200C
Bed 60C on Kapton

IMPORTANT: For the side latch buckle, print the female part with internal supports otherwise it won't print well. After printing, knock out the supports with a small screwdriver and cleanup excess plastic with an Xacto knife.


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Pentagonal Hexacontahedron Bracelet

This bracelet is formed from a ring of irregular pentagons taken from the center of a Pentagonal Hexacontahedron. So not only do you get a fancy bracelet, you also get to sound all fancy when you tell people what it is.

STL files are included for small and large versions. The large should fit over most hands and form a bangle bracelet. The small is for more lady-like hands. For those with larger hands like me, you can cut off a couple of rungs of the small version to make a C-shaped bracelet that is easy to put on and take off, and fits more snugly.

Featured on Day 218 of MakerHome: http://makerhome.blogspot.com/2014/04/day-218-polygiraffe-bracelet.html

UPDATE: Now available printed in Nylon or Metal at Shapeways.

iframe width="625" height="652" frameborder="0" allowfullscreen="allowfullscreen" src="//www.shapeways.com/fragments/product?spin=LKDFW5HE9"

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Twitter: twitter.com/mathgrrl
Hacktastic blog: www.mathgrrl.com/hacktastic
Shapeways geekhaus store: www.shapeways.com/shops/mathgrrl

This design and all associated pictures and files are licensed under the Creative Commons Attribution Non-Commercial Share Alike license. If you want to use designs, images, or files outside of the terms of this license, please email [email protected].


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Diagrid Bracelet

We've decided to discontinue several bracelets from our Cell Cycle collection to make way for new designs. This is one of those designs. I've uploaded it in three sizes:

small - inner diameter: 2.3in, inner circumference: 7.2in
medium - inner diameter: 2.5in, inner circumference: 7.85in
large - inner diameter: 2.7in, inner circumference: 8.5in

Inspired by the complex forms of radiolarians, where intricate pattern is integral to structure, these shapes derive from a simulation of spring meshes which form mirrored catenoid surfaces. We created interactive software to morph, twist, and subdivide each design, transforming a simple mesh to a complex patterned structure.

Instructions

3d-print it. Then wear it.