This is a realistic concrete guardrail 3D model, designed for easy and reliable 3D printing.The model is optimized for both resin (SLA/MSLA) and filament (FDM) printers, making it suitable for beginners and experienced users.

Perfect for:DioramasArchitecture visualizationRoad, highway, or urban scenesScale models and propsThe geometry is clean, solid, and balanced to avoid fragile areas, reducing the risk of cracks or breaks after printing.

https://youtube.com/shorts/6n7NtD0ZNAk?feature=share3D printing settings

Resin Printing (Halot Box – Beginner Friendly)Global Settings

Layer Thickness: 0.05 mm(Best balance between detail and strength)

Rising Height (Z Lift Distance): 5 mm(Helps prevent layer separation)

Motor Speed (Lifting Speed): 3 mm/min(Slow = safer, less breakage)

Light-off Delay: 2.0 s(Allows resin to settle, reduces failures)

Bottom Part

Initial Exposure Time: 30 sBottom Layer Count: 5 layers(Strong adhesion, avoids detaching)

Regular PartExposure Time: 2.5 s(Safe for most standard resins)Resin Tips (Very Important)Print slightly tilted (10–15°)Use medium supports, avoid ultra-thin tipsWash gently in IPA (do not scrub hard)Cure slowly to avoid brittleness

EXTRA TO PREVENT BREAKING

Use medium supports, not thin onesTilt the model 10–15°Do not wash aggressivelyCure under UV gradually (over-curing makes it brittle)

Filament Printing (FDM – PLA / PLA+)Recommended Filament

PLA or PLA+ (PLA+ is stronger and less brittle)

Print Settings

Layer Height: 0.2 mm

Nozzle: 0.4 mm

Wall Thickness: 1.6 mm (4 walls)

Infill: 20% (Gyroid or Grid)

Print Speed: 40 mm/s(Slower = stronger)

Temperatures

Nozzle Temperature: 200–210 °C

Bed Temperature: 60 °C

Cooling

Fan Speed: 80%(Too much cooling can cause cracks)

FDM Tips

Print flat on the bed

Avoid very thin scaling

Do not exceed 60 mm/s speed

Let the model cool naturally before removing