Dual Extruder Mount - E3D V6 & V5 /OR J Head

thingiverse

A dual extruder mounting system for a Bowden feed tube setup on a Prusa i3 with multiple versions has been designed. One version includes an 8mm Z offset (V2). Another version does not include any offset (V4). There is also a version that includes a 6.5mm Z offset (V5). The clamp securely holds any of the groove mount extruders (16mm/12mm/16mm) such as the E3D and J-Head Style extruders with one M4 nut & bolt. The V2 files are designed to hold one of the old style Ebay J-Head Extruders from China, which is 8mm taller than the new and shorter E3D V6 extruders. You should definitely check your Z Offset before printing these files as I'm sure there are many variations out there. The V4 files have no offset and are for mounting two extruders which are both the same height. The V5 files have a 6.5mm offset on the left Extruder. It incorporates the improvements made in length and slight improvements in extruder spacing (moved 2mm closer). This part was written to try and ensure that the extruders remain as true to center as possible; however, there is a slight offset because I needed to take into account that the old style J-Head has a slightly larger diameter heat-sink (and cooling fan mount). V2 Specifications: * Backing Plate Dimensions: 44.5mm (W) x 44.5mm (H) x 6mm (D) * Neck Overall Length: 35mm measured from the center point of the extruders * Neck Thickness(Z Height): 12mm * Overall Y Offset: 41mm measured from the center point of the extruders * Nut/Bolt Dimensions: M4 - a large range of Bolt lengths are accommodated * Left Extruder Z Offset: 8mm * Left Extruder Fan Housing Clearance: 35mm total half this from the center of the extruder * Right Extruder Fan Housing Clearance: 30mm as above * Clamping Collar Thinnest Wall Thickness: 6mm V3 Specifications All specifications are the same as V2 apart from having only 30mm clearance around each extruder (that is approximately 15mm radius from the center of each extruder). These files have been replaced by the improved V4 files. V4 Specifications * Thirty mm clearance around each extruder, that is fifteen mm radius from the center. These have been updated to provide a better fit onto the backing mount and decreased post print work and also increase the step out (neck length) slightly to utilize more of the print bed area along the Y axis. There's a slight increase in the diameter for each of the bolt holes. V5 Specifications * Please see above specifications. Print Settings: * Rafts: Doesn't Matter * Supports: Doesn't Matter * Resolution: Between 0.2 and 0.3mm * Infill: 25%