Infill Optimizer for 3D Printing
Strecs3D is a preprocessor that automatically optimizes the infil structure of 3D prints based on FEM stress analysis. Keep your existing slicer — place material only where it's needed.
Three Core Benefits
Reliability
Evidence-based optimization
Infill density is determined based on stress simulation. The software automatically identifies stress concentration points and locally increases density, delivering maximum strength with minimal weight gain.
Integration
Works with your slicer
Strecs3D is a preprocessor that sits between your CAD tool and slicer. Keep using Bambu Studio, Cura, or PrusaSlicer as usual — it optimizes the infill via 3MF metadata.
Built-in FEM & Free
No extra licenses needed
Strecs3D comes with its own stress analysis engine built in. No expensive licenses required. Anyone can run analysis quickly — setup, analyze, and optimize all in one tool.
Examples
From mechanical parts to everyday items — strengthen your prints with optimized infill.
Workflow
0. Design
Design a part in CAD and export as a STEP file.
Optimized Infill, Proven Strength
At the same weight, Strecs3D's optimized infill delivers significantly higher stiffness and fracture resistance.
Three-Point Bending Test
Three-Point Bending Test
Specimen weight: 15.8 g each
Stiffness (EI) Ratio
1.65x
Strecs3D vs Normal
Max Load Ratio
1.97x
239.5 N vs 121.5 N
From RoboCon to Every Engineer
Strecs3D was born from the real-world demands of robot competitions, where every gram matters and reliability is non-negotiable. This tool was built for all engineers who face the challenge of making parts that are both light and unbreakable.