Putting together a keyboard is a lot simpler then it sounds. The difficult part is deciding what kind of keyboards and finding the parts for your build. I would recommend you start at "Before you start" to decide what kind of keyboard you want to build. Then move on to "What you will need" to pick up your tools and parts and finally check out "Putting it together" to mod and build your keyboard. I hope this guide helps you build you first keyboard.
What kind of form factor and layout do you want