This is an add-on to the Bambu scraper that catches the extruder and calibration test lines when cleaning the plate, making it easier to grab the waste filament lines. (I always found the thin lines hard to pick up after scraping!)

I found it printed best on it's side, so the spiral tube is vertical. 

The original screws provided with the bambu scraper are used to screw it on,  you could use super glue as well though mine holds fine with just the screws. As shown in the pics, this print replaces the small “bump” handle on the original scraper.