¶ What it is
The buffer (or AMS Hub) is a filament buffer machine connecting the AMS and the printer.
It has a slide, a spring, and a hall sensor. When the AMS pushes the filament into the tool head extruder, the slide will move forward due to the pressure of the filament. The hall sensor can then detect the displacement and location of the slide, and feedback that signal back to the AMS and the printer. If the spring of the buffer gets stuck, it prevents the slider from moving to the far right, which affects the AMS feed.
¶ Troubleshooting
When you see that the spring of the buffer (or AMS Hub) is stuck, as shown below, please adjust the spring to ensure that the slider moves smoothly from side to side.
Another possible reason is that the filament is tangled or the spool is stuck and causes excessive resistance:
If the error persists after adjusting the spring, please upload the log file and contact the customer support team.
¶ Error message
HMS_0700-4000-0002-0004: The filament buffer signal is abnormal,the spring may be stuck or the filament may be tangle.
0700-4000-0002-0004
¶ End Notes
We hope that the detailed guide we shared with you was helpful and informative.
We want to ensure that you can perform it safely and effectively. If you have any concerns or questions regarding the process described in this article, we encourage you to reach out to our friendly customer service team before starting the operation. Our team is always ready to help you and answer any questions you may have.
Click here to open a new ticket in our Support Page.
We will do our best to respond promptly and provide you with the assistance you need.