My A1 printed great until Saturday morning when I went to start a new print. I updated the firmware on Friday but it did work after that. Now, it grinds in several different spots. Sorry about the AMS in the video, but you can clearly hear the 3 or 4 grinding spots.
The first error was a Y-axis error, so I followed the “Y-axis guide rail lubrication guide.”
Did nothing
I went step by step through the A1 periodic Maintenance Recommendations twice.
Nothing
I was running the calibration when this error appeared: HMS_0300-1000-0002-0001: The 1st order mechanical resonance mode of X axis is low.
I followed the guide to fix it.
I have had nothing but problems with this machine! Now what?
Slicer settings used: Bambu Handy Configuration
Type of filament used: none
I don’t know. Suggest you have a go at taking off the drive motor cover and having a look. Check for belt tension, and/or belt teeth wear leaving debris near the pulley. Should be possible to run the printer X-axis with some covers off, so you can see what’s actually going wrong.
I was able to fix the grinding by pulling things apart and oiling them up. Now, though, it’s clicking and extruding very thin strings.
I know the clicking. My first 3d printer was a Qidi and it did that all the time. I’ll mess with temps here in a bit. However, the extruded part on the bed is confusing. It’s almost fluffy, like strands of cotton.
When loading filament, it extrudes a nice looking line of filament. It’s only messing up when I print. I’ll try and include the video so you can see what I mean by cotton-like.