http://airtripper.com/1145/marlin-firmware-v1-basic-configuration-set-up-guide/acer-121/?utm_source=rss&utm_medium=rss&utm_campaign=acer-121 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