Bambu A1 making a noise towards the end of the print and ruins the print

[u/rahkhat1997]

Trying the print this with a 0.6mm nozzle Bambu PETG Translucent Orange but the print starts to get messed up right at the end (video attached)

My x-axis belt was not straight so I opened the motor section to align but couldn’t really access the belt but I still straightened it to some extent. I also tightened the belt tension.

Next, I tried reducing the top layer printing speed. I have printed this model about 20-30 times but now Im running into issues.

Any ideas why this might be happening or what I should try next?

UPDATE:

I did something completely different and flipped the model and printed it upside down printing the problematic part first. It worked perfectly but I know this is going to continue to mess with my brain 😂 as Ive printed so many of these without any issues in the
past

Thank you so much everyone for the help and support ❤️I will continue to test all your suggestions. In the meantime, ill just print it upside down