TPU Profile for OrcaSlicer on Bambu A1

This TPU slicer profile is designed for the Bambu Lab A1 using OrcaSlicer. It is tailored for makers and engineers who want to print flexible accessories such as phone docks, protective covers, and cable organizers. The profile prioritizes reliable extrusion, consistent layer bonding, and a balance between softness and durability, making it ideal for functional prints that require flexibility and resilience.

Why This Profile Works

The profile is tuned specifically for flexible TPU on a direct drive system. By using slow outer wall speeds and minimal retraction, it reduces the risk of filament stretching or clogging, which are common issues with flexible materials. The 30% infill provides enough structure for accessories while maintaining the soft, flexible feel that TPU is known for. Disabling the AMS ensures smooth feeding of the filament, further improving reliability.

Recommended Use Cases

Key Settings Explained

Slow Outer Wall Speed: The outer walls are printed at 30 mm/s, which helps achieve smooth surfaces and reduces the chance of print defects that can occur with flexible filaments.

Minimal Retraction: Retraction is limited to a maximum of 0.5mm. This minimizes the risk of filament jams and stringing, which are common with TPU.

30% Infill: The infill density is set to 30%, providing a good balance between flexibility and structural integrity for accessories that need to bend but also hold their shape.

Standard Layer Height: A 0.2mm layer height is used for a balance of print quality and speed, suitable for medium-sized parts.

AMS Disabled: Automatic Material System (AMS) is disabled to prevent feeding issues with flexible filament.

Frequently Asked Questions