Why these numbers
Amazon Basics PLA Filament 1.75 mm starts from Bambu's PLA Basic reference; Amazon Basics's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
Painter's tape / PEI / glass / glue stick / hair spray; enclosure not necessary; fan 100%; ~20 ASINs share this SKU
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.