Z Table "Working Bed"

The "Z Table is an essential part for a laser machine, it allows to manage different type of materials and sizes, also and the most important is to focus properly the Laser lenses for the material thickness to be cut or engrave, this build is based on the idea of Randy Smith from HOLGA MODS designer and supplier of 3d printed parts for this, more info about this idea can be found here http://holgamods.com/holgamods/Lasers.html