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Monday, July 21, 2014

Day 329 - RIB Customizable Function Bracelet

This time we've fixed the frequency at 72, the amplitude at 2mm, and left the diameter, height, and slant variable to make a RIB bracelet. This bracelet is not stretchy but it is very fluid and bends/flattens easily, making it more comfortable to wear than the TRI (Day 322) or the SUN (Day 328).


Thingiverse link: http://www.thingiverse.com/thing:425784

Settings: MakerBot Replicator Mini using Standard settings and raft, with layer height bumped up to .3mm.

Technical notes, slant flavor: In this design you choose an integer slant from -3 to 3 that represents the number of ridges that the twist extrude moves through. Doing this is easy by setting the twist extrude degrees to the value slant*360/frequency. Since the frequency (number of ridges) for this design is fixed at 72, each ridge takes up 5 degrees. Therefore a slant of 3 translates to a twist extrude to the left 3*5=15 degrees, and a slant of -3 makes a twist to the right 15 degrees. 

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