Meet the X-Carve: a 3D carving machine that lets you carve skateboards and bring your ideas to life from hard and soft woods, plastics, and soft metals. It has solid aluminum extrusions, expandable end plates, and an upgradable design. The X-Carve is open source, so you can modify it. You get about 300 x 300mm of work area (a larger option is available).
The X-Carve machine is fully configurable, easy to assemble, and solid. With Easel, you are going to have an easier time getting started with 3D carving. More information is available here.