About this 3D model

Customized version of http://www.thingiverse.com/thing:16627 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=16627 My first crack at customizing something - Created this after I pulled the stock gears off a set of NEMA 17s I picked up on Ebay and discovered that the shafts were 4mm not 5 I have also modified the name as I discovered it is not a actually a T2.5, not sure if that is a side effect of increasing the # of teeth or not, but probably not as it appears the teeth mesh perfect with my old Prusa Mendel belt.