I know where I got the idea that you'd already done this. I read in your Wiki where you listed all of the materials you need to build your own.
We've spent a lot of time talking about the benefits of users being able to create their own content. If that's true there must be benefits in creating the physical setup as well.
If binding your own books isn't DIY enough, building the binding equipment takes this idea one step further.
Now you just need to go back to your garage and build me a hand-crank printer.