Support ticket created. Hope they add this part to the spare parts page!
I have the same issue now.
I submitted a trouble ticket but no response as of day two.
My business is now stopped because of this and cannot print anything until this issue is resolved.
I would just like to have a .stl or.stp file so I can print and move on.
Could anyone form Bambu Labs help in this issue?
Take a look here: X1 Filament Cutter Lever
Maybe this will get you going. Filament Cutter Lever for Bambu X1 (Model Only) by Wooddab | Download free STL model | Printables.com
Bambu has an official STL and instructions in the wiki. Installing a Printed Cutter Lever | Bambu Lab Wiki