Layer Selective 3D printing: A step by step guide using Slic3r and Repetier Host

Important note: in the tutorial I imply that the layers as shown in rep host are numbered the same as in the g-code. This is not actually the case. the gcode generally starts with layer 0 as the first layer, while rep host uses layer 1 as the first layer. Therefore if you want to switch colors on layer 5, search for layer 4, not layer 5. I have uploaded a fixed version of the document, but if you downloaded the first version please replace it with the updated version. Also, while Repetier