Hand Crank Generator Handle

I came across a project to build a hand crank generator that I thought might be useful to build. It sourced every part except the crank handle!
I scoured e-bay and the local resale shops for a suitable donor handle, and finally, I got my own 3D Printer! Time for my very first self designed project!

Following is the original project I needed this handle for. Not my project and not my video!
The Generator project is here: http://laserhacker.com/?p=642
YouTube build video here: https://www.youtube.com/watch?v=9y4pwcFyLOE