We provide a guide on using the H2D for multi-material printing with different filaments. Before you start printing, you can check the relevant Wiki for each filament to learn more:
H2D Soft and Hard Filament Multi-Material Printing Guide
Printing guide for using PLA Basic and PETG HF for support
Due to PVA's relatively low heat deflection temperature, printing PETG with a heatbed temperature of 70°C can lead to clogs when using both hotends simultaneously.
Note:
"Simultaneous printing" here refers to using the left hotend for PVA and the right hotend for PETG (or vice versa);
You may print with PETG on the right hotend and use PVA as support filament, but this requires using the AMS;
Do not use PVA on the left hotend to support PETG.
Based on extensive testing data from Bambu Lab, and to ensure stable operation of filaments without softening or deformation inside the printer, we have categorized filaments for the H2D device into the following groups:
High-Temperature Filaments
These filaments require printing at the highest possible chamber temperature to ensure sufficient interlayer bonding strength and effectively control shrinkage and other critical print quality parameters.
Common high-temperature filaments include:
ABS,ASA,ASA-CF,PC,PA,PA-CF,PA-GF,PA6-CF,PET-CF,PPS,PPS-CF,PPA-CF,PPA-GF,ABS-GF,ASA-Aero
Medium-Temperature Filaments
These filaments offer excellent heat resistance and can achieve high print quality without requiring chamber heating.
Common medium-temperature filaments include:
HIPS,PE,PP,EVA,PE-CF,PP-CF,PP-GF,PHA
Low-Temperature Filaments
Due to their low heat deflection temperature, these filaments may soften and deform inside the extruder or hotend when the chamber temperature exceeds 45°C, increasing the risk of clogging. Therefore, they must not be used in a high-temperature chamber environment.
Common low-temperature filaments include:
PLA,PETG,PETG-CF,TPU,TPU-AMS,PLA-CF,PLA-Aero,PVA,BVOH,PCTG
Third-Party Filament Compatibility Recommendations
For non-official filaments, formulation differences may result in significant variations in heat deflection temperature even within the same base filament:
Standard Reference: It is recommended to refer to the ISO 75 standard (under 1.8MPa load). If the heat deflection temperature is below 80°C, it should be treated as a low-temperature filament.
Manufacturer Consultation: Contact the filament supplier directly for official classification recommendations to ensure optimal printing compatibility.
High, Medium, and Low Temperature Filament Printing Notes:
High-temperature and low-temperature filaments must not be printed together. Bambu Studio enforces this restriction during slicing and prevents mixing them in a single print job.
When printing high-temperature and medium-temperature filaments together, caution must be taken, as medium-temperature filaments may soften, increasing the risk of extruder or nozzle clogging and damage. It is recommended to carefully adjust the chamber temperature to avoid clogging caused by filament softening during the print.