FDM vs SLA 3D printed bolts and nuts (PLA vs Resin)

Title: FDM vs SLA 3D printed bolts and nuts (PLA vs Resin). Watch on youtube:

Tags: 3dprint, fdm vs sla, pla vs resin, strength test, sla 3d printing,

What do you think, which is stronger? FDM printed (PLA) or SLA printed (Resin) bolt and screw nut? That's what I am testing in this video. Strengh test of PLA bolt as most common material for FDM 3D printer and Water Washable Photopolymer resin. Since I don't have SLA 3D printer, I used 3D printing service, I ordered resin M6x20 bolts and M6 nuts.

0:00 introduction
1:37 analyzing resin and PLA bolts and nuts
5:10 Tensile test - bolts
7:10 Shear test - bolts
8:15 Torque test - bolts
10:18 Pulling test - nuts
12:30 Torque test - nuts
14:19 Results
14:46 Conclusion

Materials and methods:
FDM: Prusament PLA printed on Prusa MK3
SLA: Elegoo Water Washable Photopolymer resin printed on Elegoo Mars

Used STL files (for M6x20 bolts and nuts) you can download from:

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Mentioned videos:
Bolt printing position test:

Printing position for screw nuts:

Download files:

M6_bolt.stl 850.2 kB [View»]
M6_nut.stl 448.9 kB [View»]

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