John Davis is a professional watchmaker and 3D maker with a passion for 3D printing and CNC machining, and his steampunk mods to his Printrbot GO are truly wondrous to behold. According to Davis, his "art-damaged" and "post-punk" sensibilities when it comes to making are largely due to the example of his dad's insistence on a self-taught and hands-on aesthetic. Davis designed and built the steampunk mod and documented the process on his website. He also provided the files to many of the parts on his various posts on Google+ and his blog. You can read the whole story and find links to the work here: http://3dprint.com/40832/steampunk-printrbot-go/
Below is a photo of the impressive steampunk Printrbot GO: