Everyone, Phil from 3DPUK TECH CHANNEL. In this video I take a proper deep dive into the SUNLU AMS heater/dryer attachment for the Bambu Lab AMS, because at the time of filming there really weren’t many specs publicly available. I compare the original AMS lid to the SUNLU attachment, measure the key dimensions, and focus on the real-world question most people have: spool clearance and whether the new lid actually changes usable space. From my measurements, the SUNLU attachment is only around 5–6mm taller overall (roughly 106mm vs about 102–103mm on the original lid), and the width/depth footprint is essentially the same. The big visual change is the SUNLU’s square profile versus the Bambu lid’s curved shape, but clearance at the back looked fine on my setup even with larger spools fitted. I also open the unit up (not something you’d normally do) to show the internals: the control board, PTC + fan heating, and the two blower fans that split airflow across zones 1–2 and 3–4 to distribute heat. I cover the intelligent humidity monitoring (default 6 hours at 55°) where it can keep running and automatically re-heat when humidity rises to your set threshold. I also call out a couple of beta quirks—like the clunky screen, the on/off button not always responding, and the manual humidity escape port—so you’ve got enough info to decide if it’s worth buying.