Disc binder hole punch; alpha version not finished

Uploading my highly flawed and unfinished work in progress because of community request.

This was one of my first cad projects so expect the timeline to be a bit messy. If I remember correctly, the model is as good as parametric and can be tweaked using parameters.

The hinge bit works as expected and is print in place. The thing I couldn't get right was how to *cut* the paper rather than tearing it. That's why there's an orange loose part in the sketch, my idea was to pinch the paper underneath it to a) align the edge properly and b) keep the sheet stretched and hopefully make it easier to punch through. 

That last bit didn't work out too well.

The fin underneath the mushroom (yellow component) is there only to align the punch to the hole; it fits into the groove on the other side.

So to reiterate: this is not a finished product. It's a start if anyone wants to remix it and make it actually work. Have fun!