Wanhao i3 Fan Spacer/Grill v2

Improved version of the original spacer/grill. It's more customizable, and the holes are properly angled for the different width of fan vs motor. Requires OpenSCAD 2015.03 to make your own STLs.

This block is designed to clamp around your fan, and slot into the heatsink, while helpfully angling the mounting screws which V1 didn't. Now when you take the extruder apart, those little round spacers don't roll everywhere.

BOM

* Printed parts
* 2x M3x10 (or slightly longer) or KA30x10 (or