Finally: Active Chamber Heating for Bambu Lab P-Series and X1C with Biqu Panda Breath

If there’s one persistent gripe among the Bambu Lab faithful, it’s that the P-series and X1C rely entirely on the heatbed to warm the chamber. That passive soak is fine to a point, but when you start wrestling more with ABS, ASA, or PC, things can start to fall short. Biqu’s latest release, the Panda Breath, aims to bridge that gap with active chamber heating and, for good measure, air filtration.

The unit is a bolt-on modification that serves two distinct roles. Primarily, it acts as a chamber heater, actively circulating warm air to raise and stabilise the internal environment. It uses a 300W PTC heater to achieve this. No number is given for how hot it’ll go, but given the fact the printers were not designed to have their chambers heated, it’s a safe bet you won’t be going any higher than 60°C.

Controllable via LAN (other Panda series products use ESP32s – without tearing one apart, we’d assume the same here) or an upcoming mobile app, the Panda Breath can be set to automatically kick in when the print bed reaches a target temperature. Consistency is the real advantage of such a system – removing cold spots and ensuring a stable internal temperature to slow down the stresses of your parts cooling, and therefore reduce the chance of warping.