I had some difficulties after printing this model:
http://www.thingiverse.com/thing:253934/#files
Had to design some parts on my own for different reasons:
1) Some pieces when placed into position made other pieces slip out so I designed pins with longer "thin" part.
2) I had some friction so the original shape of the handle didn't work for me.
3) I also had to make the handle gear bigger.
Hope you find it useful!
Gear_Handlev2.stl | 63.0KB | |
Key_heart_handle.stl | 68.2KB | |
Pinsv2.stl | 59.3KB |