Chamber & Print Spec
ASTM-F2921
.22 LR (14k)
.380 ACP (21.5k)
9x19mm (35k)
Stress: 0 MPa
100 MPa
Marginal Safety Margin - High Risk of Fatigue Failure
Primary failure mode: Inter-layer delamination along Z-axis print lines under repeated recoil impulse.
Mechanics Telemetry
Impulse: 2.4 N·s
Yield Safety Factor
1.13
Hoop Stress (σ_θ)
62.05 MPa
Layer Shear (τ_z)
18.62 MPa
Est. Fatigue Life
12 Rounds
Polymer Comparison
| Polymer | Yield (XY) | Layer Adh (Z) | Tg |
|---|---|---|---|
| PLA (Std) | 55 MPa | 22 MPa (40%) | 58°C |
| PLA+ | 65 MPa | 38 MPa (58%) | 62°C |
| PETG | 50 MPa | 36 MPa (72%) | 80°C |
| PA6-CF | 110 MPa | 45 MPa (41%) | 145°C |