Gold-Esp-Mod-Howto
Will shows you how to upgrade an espresso machine with a new and powerful pump – “The quest for caffeine leads many a geek down the road to espresso, as we know all too well. We haven’t gotten around to turning a MacBook into an espresso machine… yet, but we just can’t resist modifying our stuff. Today’s How-To is a bit along the lines of Tim Taylor, but it’s all about the espresso.”Link.

More:
Coffee related projects, hacks and mods – Link.