¶ When to use ？
When a deviation occurs during the filament change and cutting process of the printer, it may be caused by tooth jumping in the gear within the filament cutter stopper assembly. In this case, it is necessary to open the cutter stopper assembly for adjustment.
If tooth jumping occurs on the filament cutter stopper during initial use, it may be caused by accidental impact during unboxing. Please refer to the quick repair guide below for resolution.
¶ Quick Repair Guide
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| Normal State: When the cutter rod is horizontal, the rack and the end of the stopper block are flush. | Abnormal State: When the cutter rod is horizontal, the rack protrudes beyond the end of the stopper block by a certain length. |
While pressing the rack backwards, maneuver the cutter rod towards the rear of the machine casing.
If the filament cutter stopper block cannot be repaired using this method, it is recommended that you follow the steps below to remove the filament cutter stopper block for repair.
¶ Tools and materials needed
H2.0 hex wrench
Installation Aid for Filament Cutter Stopper（Optional）
10 minutes
If you need to print an auxiliary tool beforehand, be sure to distinguish between the left and right versions.
¶ Safety Warning
It's crucial to power off the printer before conducting any maintenance work, including work on the printer's electronics and tool head wires. Performing tasks with the printer on can result in a short circuit, leading to electronic damage and safety hazards.
During maintenance or troubleshooting, you may need to disassemble parts, including the hotend. This exposes wires and electrical components that could short circuit if they contact each other, other metal, or electronic components while the printer is still on. This can result in damage to the printer's electronics and additional issues.
Therefore, it's crucial to turn off the printer and disconnect it from the power source before conducting any maintenance. This prevents short circuits or damage to the printer's electronics, ensuring safe and effective maintenance. For any concerns or questions about following this guide, open a new ticket in our Support Page and we will do our best to respond promptly and provide the assistance you need.
¶ Video Guide
¶ Operation Guide
¶ Remove the Filament Cutter Stopper
Use an H2.0 hex wrench to remove the four fixing screws. The red screws are BT2.6*8, and the green screws are M2.5*5.
The area highlighted in red in the diagram below indicates an abnormal condition, and the gear position needs to be readjusted.
¶ Adjust the Gear Position
Use an H2.0 hex wrench to remove the fixing screw of the gear on the right side, and then take out the gear.
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Next, press the rack downward while rotating the filament cutter stopper assembly downward.
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The diagram below shows the correct alignment state of the gears.
After adjusting the gears, push the bottom rack all the way to the left and keep it fixed. Then, install the gears and tighten the screws to secure them.
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If you have a printing installation aid, you can insert the fixture into the filament cutter stopper to assist with the installation of the gears and screws.Installation Aid for Filament Cutter Stopper
After installation, move the bottom rack to check if the swing rod returns to its original position and moves smoothly.
If the rack movement is stuck or sluggish, use an H2.0 hex wrench to slightly loosen the two screws corresponding to the rack—specifically, the two fixing screws for the top rack and the two for the bottom rack.
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, we will answer your questions and provide assistance.
If you have any suggestions or feedback on this Wiki, please leave a message in the comment area. Thank you for your support and attention!