Yep I recon it will - I've done some basic calc's :
Working out load capacity of Jack Lift Block ... ( from data plugged into Ai )
Structure : It will be a Double Box design ( an outer box approx 150x150x100mm + inner 50x50x100mm ) with 8mm walls + bracing ( 20 % infill + 4 wall line count ) At an ABS density of 1.04 g/cm³, the box itself will weigh approximately 880 grams.
1. Calculate Cross-Sectional Area : First, determine the actual physical cross-sectional areas of the solid walls and the internal infill zones under vertical loading (Z-axis). The model describes a nested concentric double box structure with an 8mm wall thickness.
• Outer Box Solid Walls (150 × 150 mm outer, 8 mm wall):\(\text{Inner\ Dimension}=150-(2\times
=134\text{\ mm}\)
\(\text{Area}_{\text{outer\ walls}}=150^{2}-134^{2}=22,500-17,956=4,544\text{\ mm}^{2}\)
• Inner Box Solid Walls (50 × 50 mm outer, 8 mm wall):\(\text{Inner\ Dimension}=50-(2\times
=34\text{\ mm}\)
\(\text{Area}_{\text{inner\ walls}}=50^{2}-34^{2}=2,500-1,156=1,344\text{\ mm}^{2}\)
• Total Solid Shell Area:\(\text{Area}_{\text{solid}}=4,544+1,344=5,888\text{\ mm}^{2}\)
2. Account for Infill Density : The infill region sits inside the open void between the inner wall of the outer box (134 × 134 mm) and the outer wall of the inner box (50 × 50 mm).
• Infill Void Area:\(\text{Area}_{\text{void}}=134^{2}-50^{2}=17,956-2,500=15,456\text{\ mm}^{2}\)
• Effective 20% Infill Area:\(\text{Area}_{\text{infill}}=15,456\times 0.20=3,091.2\text{\ mm}^{2}\)
• Total Effective Load-Bearing Area:\(\text{Area}_{\text{total}}=5,888+3,091.2=8,979.2\text{\ mm}^{2}\)
3. Compute Theoretical Yield Load : Standard 3D-printed ABS typically exhibits an ultimate compressive yield strength (\(\sigma _{y}\)) of approximately 35 MPa (35 N/mm²) along its printed axes.
• Ultimate Failure Load Calculation:\(F_{\text{max}}=\text{Area}_{\text{total}}\times \sigma _{y}=8,979.2\text{\ mm}^{2}\times 35\text{\ N/mm}^{2}=314,272\text{\ N}\)\(314,272\text{\ N}\approx 314.3\text{\ kN}\approx 32,036\text{\ kg}\)
4. Apply Real-World Safety Multipliers : Because 3D prints are highly anisotropic, structural stability is vastly reduced by inter-laminar layer adhesion, potential buckling along the 100 mm print height, and local slicing variations (such as the 4 perimeters/lines). For functional engineering applications, a strict engineering safety factor (SF) of 5 should be applied to account for these printing vulnerabilities: [1]\(\text{Safe\ Load\ Limit}=\frac{314,272\text{\ N}}{5}\approx 62,854\text{\ N}\approx 6,407\text{\ kg}\)
Structural Capacity Comparison :
Component Segment Material Area (mm²) Yield Contribution (kN) Load Capacity Share (%)
Solid Outer & Inner Walls 5,888.0 206.1 65.6%
20% Internal Infill 3,091.2 108.2 34.4%
Total Configuration 8,979.2 314.3 100%
Calculated Load Bearing Capacity :
The absolute maximum ideal load-bearing capacity of the printed configuration is
314,272 N (32,036 kg), while the maximum recommended working load limit under uniform compression is
62,854 N (6,407 kg).
I'll obiously test it first to see how much deflection it gets & see how it goes ...
Ciao, Bantum ...
Calculated Load Bearing Capacity :