Sunlu AMS Heater

The Sunlu AMS Heater is a drop-in heated cover upgrade for the Bambu Lab AMS (1st generation) that lets you dry your filament and print at the same time; no more pre-drying delays before every job.

⚠️ Compatibility note: Designed exclusively for the Bambu Lab AMS Generation 1. Not compatible with AMS 2 Pro or AMS systems from other brands.

Key Features

• Print & dry simultaneously - replaces the AMS top cover with a heated version, drying filament inside the AMS enclosure during active printing without interrupting your workflow.
• Rapid heating - reaches 70°C in under 20 minutes. Dual airflow design circulates heat evenly around the filament spools, preventing localized overheating.
• Unique air duct design - directs heat precisely around the filament area while shielding the AMS feeding motor from high temperatures.
• Smart rH humidity monitoring - automatically heats when humidity exceeds 50% rH and stops when it drops to 20% rH. Adjustable threshold range: 25%–50%.
• Flexible scheduling - set drying time from 0 to 99 hours. Default cycle: 6 hours. Device continues monitoring humidity after countdown in rH mode.
• 16-color stacked printing support - fully compatible with stacked AMS setups; maintains AMS Gen 1 seal strip and seal preservation function.
• 2-minute installation - loosen, disassemble, tighten. No tools or special skills needed.
• Safe & reliable - PTC heating element with dual-level thermal protection. Software-based temperature control with real-time monitoring. Alarms trigger if temperature overshoots by 10°C, fails to rise, or if the fan malfunctions.

rH Mode - Smart Humidity Control

In rH mode the display stays on after the timer ends. The heater activates automatically when humidity rises above your set threshold (25%–50%, default 50%) and shuts off when humidity drops to 20%. Default heating temperature in rH mode: 55°C (adjustable and saved).

Specifications