Dual MK8 Extruder Carriage for Anet A8 & Clones

thingiverse

Based on my CR-10 and Ender3 Single Mount, this thing uses two extruders in one housing for multi-material printing. This does not fit the Ender3 or CR-10 machines! It's designed specifically for the Anet A8 or 3DLS printers. Sumerlin_Designing requested it! The Ender3 is a 24V machine, and the CR-10 series is a 12V machine. Make sure to get the right extruder. This mount is made to be printed with support and uses a 40mm cooling fan and a stock Anet style 50mm blower and fan duct. I like the Spriya Fan Duct. Print one normal and one mirrored for the other side! It also uses stock type X belt mounts. You can use the stock thing with M3 bolts or any Anet A8 X belt holder found on here; I use this one. The mount attaches with M4x25 socket head screws and captive nuts. The extruder mounts with M3x30 screws and captive nuts. Fans and BLTouch can use M3 screws, but self-threading types are recommended. Note that the distance between the extruders is 22.4mm. The BLTouch is centered at a 11mm positive offset in Marlin and it's 15mm behind the nozzle. Set as follows in Marlin 2+: #define EXTRUDERS 2 #define HOTEND_OFFSET_X { 0.0, 22.40 } // (mm) relative X-offset for each nozzle #define HOTEND_OFFSET_Y { 0.0, 0.00 } // (mm) relative Y-offset for each nozzle #define HOTEND_OFFSET_Z { 0.0, 0.00 } // (mm) relative Z-offset for each nozzle #define NOZZLE_TO_PROBE_OFFSET { 12, 15, -2 } Grab a calibration print and some instructions here! I highly recommend Marlin 2+ and a SKR 1.4 board for this project. You can see my SKR 1.3, 1.4 & MKS SGEN L Board Setup Tutorial with TMC2208 UART and Marlin 1.1.x or 2.x on Anet A8 Guide for more info! This includes my new Doom Donut Fan Duct, which is pictured.