Steven Osborn obviously has a great deal of passion for 3D printing — as well as the patience of a saint. After ditching his MakerBot Fifth Generation Replication due to a multitude of issues and frustration in getting it fixed, he purchased a Lulzbot Taz 4 which offered an array of challenges, but also allowed ease in fixing problems due to its open-source design. Check out his frustrations and solutions in the full article: http://3dprint.com/54833/lulzbot-extruder-hacking/


Below is a photo of Osborn's extruders: