http://cg.tutsplus.com/tutorials/pixologic-zbrush/create-a-3d-micro-robotic-insect-in-zbrush/

This week, Cgtuts+ has teamed up with our sister site Psdtuts+ to bring you this amazing two part, in-depth tutorial from Nacho Riesco. In this tutorial we are going to sculpt a Micro Bionic Insect with chemical war purposes using simple hard-surface modelling techniques with the Clipping Brush, Masking and much more. Head over to Psdtuts+ for the conclusion of this project where we’ll composite our render passes from Zbrush, and create the final image in Photoshop!