ANet A8 Dual Extruder Mount

Printed Parts
1) A8 Dual Extruder - V3.3 Carriage Mounting (This part may need to be PETG)
2) A8 Dual Extruder - V3 Part Cooling Duct
1) A8 Dual Extruder - V3.3 Top Left
1) A8 Dual Extruder - V3.3 Top Right

Optional Parts
1) X_Axis_Cable_Tray_Mount - This is for a Drag Chain

(Printed 22.5 angle with Supports)
1) 3 Times MOSFET Mount for HB and Dual Extruder

Additional Parts
2) E3D V6 Hot Ends
2) Extruder Motors ANet A8 type (276g 9.8Oz)
I am switching to 17HS4023 (132g 4.66Oz) less than half the weight and more torque
1) Left MK8 Extruder
1) Right MK8 Extruder
2) 40x40x10 Blower 12v
1) 40x40 Fan 12v I used Noctua A4x10 or the two clip on fans for the E3D V6 heat sink
1) main board that can drive two extruders I used a BTT v1.4 Turbo

Carriage Mounting
Carriage Bearings screw holes can either be M3 or M4
4) M4 x 35mm Socket Head - E3d V6/ Linear bearing mounting blocks
4) M4 x 12mm Socket Head - Mounting to Upper Linear Bearings
4) M4 x 8mm Socket Head - Mounting to Lower Linear Bearings

Extruder to Stepper (1/2 on each extruder)
2) M3 x 22mm Socket Head -Extruder Lever Hinge
4) M3 x 18mm Socket Head -Extruder bottom
2) M3 x 16mm Socket Head -Flat head Screw - Under the Extruder Lever

Part Cooling Fan Mount
4) M3 x 10mm Socket Head
4) M3 nuts
plus the small screws that came with the fan

Cooling fan for Heat Break Heat sink
two choices:
2) Clip-on 20mm fans that come with the E3D V6 hot ends
Or
1) 40mm x 10mm fan that mounts to the E3D V6 Mount blocks

You will also want an upgraded power supply The original 20A supply is not enough.

V3
Depending on your extruder there may not be enough clearance for the arm of extruder to move, I left the parts if you can and prefer the narrow version.

V3.7
The mounting blocks and the Carriage have been redesigned so there is about 4mm of clearance between extruders, the mount for the cable/drag chain mount was moved forward. The Screw holes for the M4 screws were resized so they go more smoothly into the the linear bearing pillow blocks.