This is my direct drive extruder "V9 JGR Extruder", i'm not sure a 1.75mm direct drive extruder can get any smaller there is a few changes from the last version: - hotend mount is now a very rigid clamping mechanism compared to the popular double screw system,- the whole thing is now shorter in z height- filament path is also shorter - motor sits closer to carriage - body is thinner overall - a lot less plastic to print - still uses the same artline pen spring idler for simplicity Filament drive available from http://3dindustriesaustralia.com.au, http://reprapdiscount.com, http://2engineers.com, http://thejollygrimreaper.blogspot.com