Replace i7 Toolhead filament cutter
The filament cutter is installed on the left side of the Extrusion Assembly. When the Toolhead moves to the far left, the Cutter Arm is actuated by a lever mechanism, driving the internal cutter blade to cut the Filament. After cutting, the cutter automatically returns to its original position under the magnetic force of the built-in magnet.
This guide explains how to replace the i7 Series Toolhead Filament Cutter.
The cutter is damaged or becomes dull;
Abnormal filament cutting occurs (it is recommended to run Cutter Detection first);
Replacement is recommended after more than six months of use.
New i7 Toolhead Filament Cutter (purchase link);
Tweezers or any Hex Wrench.
Power off the printer and unplug the Power Cable;
Before operation, make sure the Hotend and Heated Bed have cooled down to avoid accidental contact with hot components.
Remove the Toolhead Front Cover to expose the Toolhead Assembly;

Locate the latch in front of the Cutter Arm on the left side. Push the latch upward; the cutter arm will automatically spring open;
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Using tweezers or a hex wrench, slide the cutter out from the rear toward the left side; Warning: The blade is sharp. Handle with care to avoid injury.
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Prepare the new cutter and make sure the magnet side faces forward;

Insert the cutter into its original position. The cutter will be pulled into place by magnetic force;

Push the cutter arm latch upward, swing the Cutter Arm back into position, then release the latch to ensure it is securely locked;

It is recommended to run Cutter Detection to ensure the cutter is in the optimal position.
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