Beam Interlocking Benchmark for Bambu Lab H2D

This test model evaluates the effectiveness of beam interlocking in hybrid printing with rigid and flexible materials (e.g., TPU). Poorly calibrated parameters may lead to issues such as TPU stringing embedding into unintended areas or surface defects like excessive stringing.

Design Features

• Multi-Directional Interlocking: Includes vertical and horizontal beam structures embedded into the base model to simulate varied extrusion paths.
• Test Surfaces: Critical surfaces are positioned along potential nozzle travel paths to assess material crossover during non-printing movements.
• Material Assignment: The base and bumper components are assigned distinct materials in the slicer. Enabling beam interlocking ensures proper material segregation.

Validation Criteria

• Layer Inspection:
  Verify beam interlocking structures in both orientations during slicing.

• Nozzle Path Analysis:
  Enable travel path visualization to confirm the nozzle crosses the central wall.

• Print Quality:
  Successful prints exhibit smooth surfaces without stringing. TPU and base components should bond seamlessly, with clean interfaces and no residue.

  

Usage Guide

• Slice the model with beam interlocking enabled, assigning materials appropriately.
• Monitor layer previews and travel paths to optimize retraction, temperature, and speed settings for TPU.

This benchmark ensures reliable hybrid printing performance on the Bambu Lab H2D, minimizing material contamination risks while maintaining structural integrity.