Blockbot V3.1 pins
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