Hi, had my new P1S for a week, completed 5 or 6 prints, all look good.
Started to get a HMS warnings (in device tab on Bambu Studio on PC) stating- “Resonance frequency of the Y axis is low. Timing Belt may be loose.”
When clicking on the link it opens a fix relating to the X axis - HMS 0300-1000-0002-0001 but this relates to the mechanical resonance mode of the X axis being low.
I’m not an expert but with the printer being a CoreXY motion system, the movement relies on two separate motors that are not specifically X or Y axis motors but both Axis at the same time. The problem would give the same issue regardless of which belt may have a problem so no need to print the same information twice.
Thanks, would it be normal to have to start adjusting belts afer a couple of hours of printing?
I have a Anycubic Kobra 2 for nearly a year now and loads of hours printing and never had to adjust belts.
Theoretically, the belts are self-adjusting so no, adjustment shouldn’t be required. I guess it’s possible there was an error with the belt fitment in the factory but that’s a long shot. If it was me, I’d follow the article to see if that fixes it.
I googled ‘HMS 0300-1000-0002-0001’ and the article I read mentioned the Y Axis so it should be correct for your issue. It also states ‘Alternatively, you can replace the “start gcode” in the current latest version of Bambu Studio’ with a link to the code Download.
From this - it seems like it could be a Bambu Studio (or Orca Slicer if you are using that) issue rather than a printer issue.
Belts do not stretch much, but it is a possibility for new belts. They are not really self-adjusting. Once the screws are loosened on the movable pulleys, the springs apply the correct tension and then the pulleys can then be secured in the new position. Follow the Wiki instructions.
I had / have the same issue, immediatly after receiving the printer. Horizontal round objects are printed as ovals due to this. Bambu support studied the log files and concluded that there was unusual friction in the X-Axis (Carbon rods). They gave me two options, either send back the printer or to send me a replacement carbon rod unit. I chose the latter but after installing it (took me almost 5 hours!), including the new belts that came with it, the problem persists. Even after going through the cleaning and belt tensioning procedure multiple times. Printer is useless for now. I reopened my ticket yesterday so hopefully Bambu comes with a satisfying solution.
So my advice based on my own experience, contact support and take the option to replace the printer completely.
Thanks for all of the advice, i follwowed the wiki instructions to retension the belts and everything is working great again.
I have completed about 30hrs of prints since then with no issues, fingers crossed it was a one off fault report.