A square rod with only 90-degree bends in the topology of a Chinese Button Knot.
This experiment is part of a research program sponsored by NSF to streamline the process of rapid prototyping of free form parts, by defining a clean interface between designers and fabricators.
When implementing this shape with an SLS process, one might consider a process variant that solidifies the surface only in order to reduce the amount of fusing that has to be done.
An STL description of the part can be found here.
Or it can be downloaded from our anonymous FTP site:
==> ftp://ftp.cs.berkeley.edu/ucb/projects/unigrafix/STL/cbknot1.stl.gz
Large compressed files can be downloaded from our anonymous FTP site with:
ftp ftp.cs.berkeley.edu
{login as "anonymous"; use your full e-mail address as password.}
Then change directory: cd ucb/projects/unigrafix/STL
Fetch desired files: get rf8kh4.stl.gz
The rf8kh4.stl.gz file can be uncompressed with gunzip.
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