In theory, if I were to take a hot glue gun and adapt a CNC-machined nozzle with a heat-sink on it to replace the existing glue-gun nozzle, then I could do what a 3D printer pen does in wax instead of plastic…but would I call the result a 3D print? No. It would be a…

Several months ago, the world was presented with the “3Doodler”—at the time, a conceptual analog device proclaimed to be the world’s first 3D printing pen. After achieving much notoriety, esteem and extensive international press coverage, the small Boston-based upstart behind the project, WobbleWorks LLC, shattered its now comparatively-modest $30,000 fundraising goal to make the device…