Fiber

These parameters are designed to help avoid printing issues; however, temperatures and speed timings can be adjusted based on your specific goals. For example, if you prefer a less rigid result, we recommend using a lower temperature. This is the printing reference for TimeMass Fiber filament, tested on the Bambu Labs A1 printer, and optimized for 0.2 mm, 0.4 mm, 0.6 mm, and 0.8 mm nozzles. TimeMass Fiber is more thermally sensitive and features a dual-phase structure, which emits more vapor during printing. It benefits from careful temperature ramping and reduced internal pressure. All settings are specifically optimized to reduce bubbling, fogging, and material instability. If the print fails, it is recommended to lower the nozzle temperature by 10°C and restart until optimal results are achieved. While these examples were printed with a 0.8 mm nozzle, TimeMass can be used with any nozzle size. Please check the manual for printing parameters with all the other nozzle sizes.

Temperature Settings vary by nozzle. For a 0.2 mm nozzle, set the nozzle temperature to 215°C and the bed to 60°C, optimizing for lower flow, finer bead, and less thermal stress. For 0.4 mm, use 225°C nozzle temperature and 60°C bed temperature to maintain melt uniformity for the encapsulated blend. The 0.6 mm nozzle works best at 230°C to ensure stable output for larger extrusion volumes, while the 0.8 mm nozzle should be set to 235°C, helping vapor escape from the larger filament volume without causing clogs. A textured PEI plate is required for adhesion—avoid smooth platesunless properly primed.

Cooling Settings should disable cooling for the first 3 layers to prevent fog formation under sensors. Set the fan minimum speed to 0% for the first 100 seconds to allow vapor to escape without becoming trapped. The maximum fan speed should be limited to 10–15%, preventing filament oval deformation. Keep the fan always off to avoid thermal shock and material stiffening mid-print. Do not force cooling on overhangs, and use only minimal airflow (10–15%)for structural overhangs.

Maximum Volumetric Flow varies per nozzle. For 0.2 mm, keep the flow at 1.5 mm³/s, which is sensitive to clogging due to low melt strength. For 0.4 mm, set it at 4 mm³/s, balancing for higher viscosity variance. The 0.6 mm should run at 6 mm³/s, avoiding pressure spikes and bubbles, and the 0.8 mm at 9 mm³/s, preventing vapor entrapment and melt lag. Ramming speed should be adjusted between 1–3 mm³/s depending on your purge tower strategy.

Retraction and Pressure Advance should be configured as follows: for a 0.2 mm nozzle, use a retraction distance of 0.7 mm at 20 mm/s speed, with a pressure advance of 0.04. For 0.4 mm, use 0.6 mm retraction, 18 mm/s speed, and 0.045 pressure advance. The 0.6 mm nozzle requires 0.5 mm retraction, 15 mm/s, and 0.05 advance, and the 0.8 mm nozzle performs best with 0.4 mm retraction, 15 mm/s, and 0.055 pressure advance. These values help manage off-gassing during slowdowns.

For Layer Height and Line Width, use 0.12 mm layer height, 0.18 mm initial layer, and 0.25 mm line width for the 0.2 mm nozzle. For 0.4 mm: 0.2 mm height, 0.22 mm initial, and 0.42 mm width. For 0.6 mm: 0.3 mm height, 0.32 mm initial, and 0.6 mm width. And for 0.8 mm: 0.3 mm height, 0.35 mm initial, and 0.8 mm width.

In terms of Wall, Shell, and Infill Settings, use 3 wall loops and 4 top/bottom shells for 0.2 mm and 0.4 mm nozzles, and 2 wall loops and 3 shells for 0.6 mm and 0.8 mm. Set top/bottom thickness to 1 mm for smaller nozzles and 1.2 mm for larger ones. Sparse infill density should be 30% for 0.2 mm, 25% for 0.4 mm, and 20–25% for 0.6 mm and 0.8 mm. These configurations support vapor containment inside internal zones.

Speed and Acceleration settings are as follows: For travel speed, use 100 mm/s (0.2 mm), 130 mm/s (0.4 mm), 140 mm/s (0.6 mm), and 150 mm/s (0.8 mm). Set outer wall speed to 30 mm/s, 35 mm/s, 45 mm/s, and 55 mm/s, respectively. Infill speed should be 50 mm/s to 100 mm/s, depending on nozzle size. For acceleration, print acceleration should range from 1000 mm/s² (0.2 mm) to 1800 mm/s² (0.8 mm), and travel acceleration from 2500 mm/s² to 4000 mm/s². These values are calibrated to reduce vibration and pressure surges.

For Adhesion and Brims, use 2 skirt loops to purge water vapor early. Set the brim width between 4 and 6 mm to stabilize softened edges during print start. A brim gap of 0.15 mm ensures easy release after printing.

Under Flush, Prime, and G-code, the use of a prime tower is recommended due to the heavy vapor released at the start of the print. Suggested start G-code is:

M900 K[PA] ; Pressure Advance M106 S0 ; Fan off G92 E0 G1 E15 F300 ; purge line G92 E0

Replace [PA] with the pressure advance value corresponding to your nozzle.

Lastly, parameters consistent across all nozzles include: Bed temperature of 60°C with a textured PEI bed, "Avoid crossing walls" set to ON, "Smart seam" ON, a cooling delay of 3 layers, and brim/skirt defaults remain functional. Always dry the filament before use, and it is recommended to print with the door open for optimal ventilation.