SummaryThis C clip is used to hold a E3D V6 in place when used with an original effector plate set of the BI v2.5. 2 version are offered, one with a round support and one without, use whatever you want but you might need to clean/rework it a little before you use it. It's really working by being pressured between the 2 effector plate. (Please refer to the image to find how to assemble it). I currently use it with the direct extruder set (http://www.thingiverse.com/thing:887941). but you should be able to use it as a bowden setup. During usage the E3D is normally cold at this attachement point but it would be a good idea to print this in Nylon or ABS.