http://airtripper.com/801/hot-end-design-on-3d-printer-extruder/?utm_source=rss&utm_medium=rss&utm_campaign=hot-end-design-on-3d-printer-extruder 3D Printer usage and modifications plus Arduino powered electronic projects and 3D Printing designs. Sun, 08 Jun 2014 11:30:05 +0000 hourly 1 http://wordpress.org/?v=3.8.3