Summary

This is the beautiful tri-vase from joo (Thing 16378) turned into dual extrusion using IceSL ( http://icesl.loria.fr/ ).

Instructions

This object can only be printed using IceSL version 1 ( download from https://gforge.inria.fr/frs/?group_id=4731 , bottom of the page )
I included G-Code for a Replicator1 Dual + Sailfish 7.4

NOTE (2018): The new version of IceSL (http://icesl.loria.fr/) no longer supports slice shaders. These have been superseded by implicit solids and implicit distance fields. So this Thing is here mainly for "historical" value.

Download all files (.lua,.sh and .stl) as well as IceSL
Copy the files in the 'icesl/bin' directory of IceSL
Launch 'IceSL trivase.lua' (or drag and drop trivase.lua on IceSL.exe)
Setup printer parameters
Click on 'slice'
This generates trivase.gcode ('icesl/bin' directory)
Load the G-code into your favorite printing software (e.g. ReplicatorG)
Print

This vase was printed on a Replicator 1 Dual + Sailfish 7.4 + ReplicatorG 40r16, 0.2 layer height, 100% infill, 2 shells, 2 covers.

IceSL makes it very easy to generate dual-extrusion prints simply by writing a shader - in this case trivase.sh. The function selecting color is:

int g = int(p.z6.0+1.2sin(p.y5.0)+0.7cos(p.x*3.0));

where p.xyz is a 3D point of the object in space. The result 'g' is the identifier of the printing head (0 => T0, 1 => T1).

Dual color trivase