[BUG] Unable to upload .3mf file to cloud and start printing

[Jordan-Rudolph]

Describe the bug
I am unable to upload a .3mf file to my Bambu Cloud account. I am using the "Complete Upload and Print Workflow" script found in the files and printing documentation with some extra print statements added in. While I technically get a status code 200 response that includes an AWS url, the file never actually shows up in my account when running client.get_cloud_files(). The only files that this function returns are those which I've uploaded by sending them through Bambu Studio. I also cannot use client.start_cloud_print to print anything without getting a "bambulab.client.BambuAPIError: API request failed (405):" error, including files I've uploaded through Bambu Studio.

To Reproduce
Run the script below with your information added in the "YOUR_TOKEN_HERE" and "YOUR_PRINTER_SERIAL_HERE" fields.

Expected behavior
I expected my Test.3mf file to be uploaded and printed, neither of which actually happened.

Code snippet

client = BambuClient(token="YOUR_TOKEN_HERE")
devices = client.get_devices()
for device in devices:
    print(f"{device['name']}: {device['print_status']}")
    print(device)
model_name = "Test.3mf"
# Step 1: Upload file
print("Uploading file...")
result = client.upload_file(model_name)
print(result)
if result['status_code'] in [200, 201, 204]:
    print(f"Upload successful: {result['filename']}")
    
    # Step 2: Wait for file to register
    time.sleep(2)
    
    # Step 3: List files to verify
    files = client.get_cloud_files()
    print(f"Found {len(files)} files in cloud")
    print(files)

    # Step 4: Start print
    print_result = client.start_cloud_print(
        device_id="YOUR_PRINTER_SERIAL_HERE", 
        filename=model_name
    )
    
    print(f"Print started! Job ID: {print_result.get('job_id')}")

Error message

Traceback (most recent call last):
  File "...\example_cloud.py", line 29, in <module>
    print_result = client.start_cloud_print(
        device_id="YOUR_PRINTER_SERIAL_HERE",
        filename=model_name
    )
  File "...\bambulab\client.py", line 323, in start_cloud_print
    return self.start_print_job(
           ~~~~~~~~~~~~~~~~~~~~^
        device_id=device_id,
        ^^^^^^^^^^^^^^^^^^^^
    ...<3 lines>...
        settings=settings
        ^^^^^^^^^^^^^^^^^
    )
    ^
  File "...\bambulab\client.py", line 277, in start_print_job
    return self.post('v1/iot-service/api/user/print', data=data)
           ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "...\bambulab\client.py", line 110, in post
    return self._request('POST', endpoint, data=data, **kwargs)
           ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "...\bambulab\client.py", line 92, in _request
    raise BambuAPIError(
        f"API request failed ({response.status_code}): {error_msg}"
    )
bambulab.client.BambuAPIError: API request failed (405): 

Environment:

• OS: Windows 11
• Python version: 3.13.7
• Library version: V1.0.5
• Printer model: P1S

[yanshay]

Doesn't work for me either.
I also don't see an ID or URL on any file, even one I just sent to print through BambuStudio.
My guess if it worked in the past Bambu blocked it now.
Just see:

File: Cylinder
ID: None
URL: None

[patrys666]

Has anyone solved this problem? I have the 'upload_url' but there is no file on the printer.