In its brief life span, 3D printing has been dominated by the DIY scene intent on building, maintaining, and modding their printers all by themselves. While it adds another layer of intrigue to the process and can lead to some curiously customized machines, for those of us without mechanical mastery, a fully assembled set-up will do the job just nicely. Enter the Solidoodle 4, a 3D printer ready to rock as soon as it arrives.