⬢Bondtech pulley WITH the hole for the lock screw (1x)
In case the lock screw is sent separately, screw it in the pulley slightly. Ensure the tip of the lock screw isn't reaching to the internal part of the pulley as it might block the shaft in the next step.
Ensure you are using the correct motor, there is a label on the bottom of the casing. The reason is, each motor has different cable length.
There is a second spare lock screw in the package.
⬢In the kit you can find two versions of the hotend:
⬢E3D V6 hotend with regular PTFE tube (old version, no marking)
⬢E3D V6 hotend with MMU2 PTFE tube (newer version, marked with a green dot)
Both versions are perfectly fine for a single material MK3. The newer version is optimized for customers planning to upgrade to the MMU2 (with the previous "regular" version, you have to change the PTFE yourself).
DON'T REMOVE the PTFE tube, it has to be in the hotend.
⬢Place the Extruder near the X-carriage and check no wire is pinched. There is a slot in the X-carriage for the motor wires, see the picture. Bend the motor cable in it and leave the fan wires straight.
⬢Mount the Extruder on the X-carriage using the screws above. Tighten all screws, but not fully. We need to arrange the cables again, this time in the back.
⬢Guide the cables through slots (channels) on both sides of the Extruder. On the left side, it is Front Print fan and P.I.N.D.A. probe, on the right side Extruder motor and Left Hotend fan.
Ensure again the cables are pushed to the channels (not sticking out) and not pinched between printed parts. Now, tighten all screws, equally to prevent issues.
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