*last update: 11.04.2015*A multipurpose Extruder for 3.00mm filaments. You can use it as bowden or direct extruder. It's compatible with over 40 hotends. There are several tools and adapters included. Rampage works with many many 3d printers (like Greg's) and additionally for Velleman K8200/3Drag. Has Optimized geometry and variants for square nut and hexagon nut fastening. The extruder development and creation of the description/build information took several weeks and more than 300 hours. It's build from ground up, inspired by Greg's wade reloaded extruder and many other. It has optical identic features but when you look inside you will see many differences and bonus/comfort features. It's worth to look deeper into. In the gallery you can see different compability examples for E3D-v6, Hexagon and Sunburn hotends. Please see also "instructions" page for some more details about production/usage. Because there are many .stl files we only uploaded one piece in 2 variations for presentation (was needed for creating this thing post). Just download the entire fileset.You can read the complete guide for our extruder at the given link: http://wiki.stoutwind.de/doku.php?id=stoutwinds-rampage-universal-single-extruder for english readers just use translation by google: https://translate.google.de/translate?sl=de&tl=en&js=y&prev=_t&hl=de&ie=UTF-8&am...= There you will also find bill of material, installation, step rate calculation, firmware configuration, software manipulation for paramaters, downloads and many many more