Why these numbers
Bambu Lab ABS starts from Bambu's ABS reference; Bambu Lab's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
Enclosure required. Speed/density/drying from V3.0 TDS PDF.
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.