GT2 Pulley For L3K Extruder

Here is the gear that I used on my make of the L3K extruder. I matched it up to a GT2 16 tooth pulley on the motor for a gear ratio of 5.625. With my hobbed bolt the E-steps are 763.115.

I used this thing to make my own hobbed bolt: http://www.thingiverse.com/thing:185448