About this 3D model
I wasn't happy with the pins for the very nice Blockbot V3.1, so using the Pin Connectors V3 I created new pins. Because it's made in OpenSCAD it's adjustable. Blockbot V3.1: http://www.thingiverse.com/thing:26833 Pin Connectors V3: http://www.thingiverse.com/thing:33790 Using layouts.scad from my MCAD fork: https://github.com/peteruithoven/MCAD