Gears and transmission
Monolithic Flexure Torque Limiter
- Bounding box
- 28.0 × 28.0 × 4.0 mm
- Engine
- Precision B-rep
- Parameters
- 7
- Published
- October 6, 2026
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The prompt
Functional Objective: Design a backlash-free, single-piece (monolithic) torque-limiting mechanism that protects micro-robotic drivetrains from catastrophic gear stripping during sudden mechanical blockages. Material Selection: Polyethylene Terephthalate Glycol (PETG) due to its optimal balance of elasticity, flexural fatigue resistance, layer adhesion, and suitability for high-resolution additive manufacturing or precision profile cutting. Key Mechanical Properties (PETG): Young’s Modulus (E): 2.1 GPa Yield Strength (σ y ): 50 MPa Poisson's Ratio (ν): 0.41 Performance Targets: Target Slip Torque Threshold: 1.2 N⋅m (±0.05 N⋅m) Total Enveloping Footprint: <30 mm outer diameter to satisfy sub-decimeter micro-robotic spatial constraints. Kinematic Recovery: 100% elastic return to home position post-overload without permanent plastic deformation or hysteresis loss
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Diameter | 28 mm | 24 – 30 |
| Hub Diameter | 12 mm | 10 – 14 |
| Bore Diameter | 6 mm | 3 – 8 |
| Thickness | 4 mm | 2 – 8 |
| Flexural Gap | 4 mm | 2 – 4 |
| Arm Count | 6 | 3 – 8 |
| Arm Width | 1.5 mm | 0.8 – 2.5 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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