This is a mirrored and adapted version for LEFT Hand of the Ultimate Bambu Lab mouse. The Ultimate (RH) version includes all the improvements I have found or I have done for this mouse. Being quite an ergonomic design, intended for the right hand use, I assume the RH version is not optimal for those using mainly the left hand.

Here is where this model steps in. The main outer shell is mirrored, the lower shell is kept where it interferes with the PCB and mirrored the rest, the cover for PCB is kept but adapted to the mirrored outer shell.

Long story short - it fits properly. I did print it and assembled it exactly like the RH version (excellent instructions in the original Bambu Lab version).

The very last assembly step - the fully assembled base with the top shell requires a bit of pressure during the early displacement phase, then it slides easily in the right positions (too much to explain why - just press it a bit).

You need the 4 printed parts included in this model and the BL kit:
https://eu.store.bambulab.com/products/wireless-mouse-components-kit-002
 

Once again - this version is designed for the LEFT HAND. If you need the right hand version please use the Ultimate models listed in the remix zone.