[{"data":1,"prerenderedAt":390},["ShallowReactive",2],{"doc-/logbook-experiments/body/3d_printing_optimization_petg_marine":3},{"id":4,"title":5,"author":6,"body":7,"date":374,"description":375,"extension":376,"image":377,"location":378,"meta":379,"navigation":380,"path":381,"seo":382,"stem":383,"tags":384,"__hash__":389},"content/logbook-experiments/body/3D_printing_optimization_PETG_marine.md","[LOGBOOK] PETG 3D Printing Optimization for Marine Structural Components","Bagas Widi",{"type":8,"value":9,"toc":352},"minimark",[10,15,19,27,30,35,38,49,51,56,59,96,98,102,105,139,141,145,148,151,165,168,170,174,177,179,183,190,193,204,207,209,213,219,222,233,235,239,242,253,256,258,262,265,267,271,274,285,288,290,294,297,308,311,313,317,320,322,326,329,340,342,346,349],[11,12,14],"h1",{"id":13},"_3d-printing-optimization-using-petg-filament-for-marine-applications","3D Printing Optimization Using PETG Filament for Marine Applications",[16,17,18],"p",{},"Additive manufacturing plays a crucial role in the rapid development of structural and functional components for autonomous vessels. The reliability of printed parts is strongly influenced by both material selection and printing parameters.",[16,20,21,22,26],{},"For this project, ",[23,24,25],"strong",{},"PETG (Polyethylene Terephthalate Glycol-modified)"," filament was selected and optimized to produce components that meet mechanical, environmental, and operational requirements for marine applications.",[28,29],"hr",{},[31,32,34],"h2",{"id":33},"_1-material-selection-why-petg-over-pla","1. Material Selection: Why PETG Over PLA?",[16,36,37],{},"The choice of filament material significantly affects the durability and performance of 3D printed components, particularly for systems exposed to outdoor and marine environments.",[16,39,40,41,44,45,48],{},"Although ",[23,42,43],{},"PLA"," is widely used due to its ease of printing, it exhibits several limitations when applied to functional components on autonomous vessels. ",[23,46,47],{},"PETG was therefore selected as a more suitable alternative",", offering a balanced combination of strength, durability, and environmental resistance.",[28,50],{},[52,53,55],"h3",{"id":54},"_11-advantages-of-petg-compared-to-pla","1.1 Advantages of PETG Compared to PLA",[16,57,58],{},"PETG provides several key advantages over PLA for marine-oriented applications:",[60,61,62,72,80,88],"ul",{},[63,64,65,68,71],"li",{},[23,66,67],{},"Environmental Resistance",[69,70],"br",{},"\nPETG demonstrates superior resistance to moisture, UV exposure, and temperature fluctuations. PLA tends to soften and degrade under prolonged heat or humid conditions, whereas PETG maintains structural stability in outdoor environments.",[63,73,74,77,79],{},[23,75,76],{},"Mechanical Strength and Toughness",[69,78],{},"\nCompared to PLA, PETG is less brittle and more impact-resistant. This makes it more suitable for components subjected to vibration, shock loads, or dynamic forces.",[63,81,82,85,87],{},[23,83,84],{},"Layer Adhesion",[69,86],{},"\nPETG exhibits strong interlayer bonding when printed at appropriate temperatures, reducing the risk of delamination under mechanical loads.",[63,89,90,93,95],{},[23,91,92],{},"Chemical Resistance",[69,94],{},"\nPETG shows better resistance to oils, fuels, and mild chemicals compared to PLA, making it suitable for marine and propulsion-adjacent components.",[28,97],{},[52,99,101],{"id":100},"_12-limitations-of-petg-compared-to-pla","1.2 Limitations of PETG Compared to PLA",[16,103,104],{},"Despite its advantages, PETG also introduces certain trade-offs:",[60,106,107,115,123,131],{},[63,108,109,112,114],{},[23,110,111],{},"Printability",[69,113],{},"\nPETG requires more precise temperature tuning compared to PLA, which is more forgiving during printing.",[63,116,117,120,122],{},[23,118,119],{},"Surface Finish",[69,121],{},"\nPLA typically produces a cleaner and stiffer surface finish. PETG may exhibit stringing if not properly configured.",[63,124,125,128,130],{},[23,126,127],{},"Dimensional Accuracy",[69,129],{},"\nDue to its flexibility, PETG can show slightly lower dimensional precision for tight-tolerance parts.",[63,132,133,136,138],{},[23,134,135],{},"Moisture Sensitivity",[69,137],{},"\nPETG is hygroscopic and absorbs moisture from the air, making filament storage more critical.",[28,140],{},[52,142,144],{"id":143},"_13-material-selection-justification","1.3 Material Selection Justification",[16,146,147],{},"While PLA is suitable for rapid prototyping and aesthetic components, its brittleness and poor environmental resistance limit its application in marine systems.",[16,149,150],{},"PETG was selected as the optimal compromise between:",[60,152,153,156,159,162],{},[63,154,155],{},"Mechanical toughness",[63,157,158],{},"Environmental and moisture resistance",[63,160,161],{},"Chemical durability",[63,163,164],{},"Functional printability",[16,166,167],{},"This material choice supports long-term reliability and operational safety for autonomous vessel components.",[28,169],{},[31,171,173],{"id":172},"_2-optimized-petg-printing-parameters","2. Optimized PETG Printing Parameters",[16,175,176],{},"Through iterative testing and validation, the following printing parameters were identified as the most stable configuration for PETG filament used in this project.",[28,178],{},[52,180,182],{"id":181},"_21-nozzle-temperature","2.1 Nozzle Temperature",[16,184,185,186,189],{},"The optimized nozzle temperature was set to ",[23,187,188],{},"245 °C",".",[16,191,192],{},"This temperature provides:",[60,194,195,198,201],{},[63,196,197],{},"Stable material flow",[63,199,200],{},"Strong interlayer adhesion",[63,202,203],{},"Improved mechanical integrity",[16,205,206],{},"Lower temperatures resulted in weak bonding, while higher temperatures increased stringing and surface artifacts.",[28,208],{},[52,210,212],{"id":211},"_22-bed-temperature","2.2 Bed Temperature",[16,214,215,216,189],{},"The build plate temperature was set to ",[23,217,218],{},"70 °C",[16,220,221],{},"This configuration ensures:",[60,223,224,227,230],{},[63,225,226],{},"Reliable first-layer adhesion",[63,228,229],{},"Reduced warping and edge lifting",[63,231,232],{},"Stable thermal behavior during printing",[28,234],{},[52,236,238],{"id":237},"_23-supporting-print-settings","2.3 Supporting Print Settings",[16,240,241],{},"To complement the temperature setup, additional parameters were applied:",[60,243,244,247,250],{},[63,245,246],{},"Moderate printing speed",[63,248,249],{},"Controlled cooling fan usage",[63,251,252],{},"Precise first-layer calibration",[16,254,255],{},"These settings improve print consistency and dimensional stability.",[28,257],{},[31,259,261],{"id":260},"_3-environmental-factors-affecting-petg-printing","3. Environmental Factors Affecting PETG Printing",[16,263,264],{},"Environmental conditions play a significant role in PETG print quality and repeatability.",[28,266],{},[52,268,270],{"id":269},"_31-humidity-and-moisture","3.1 Humidity and Moisture",[16,272,273],{},"PETG absorbs moisture from the surrounding air. High humidity can cause:",[60,275,276,279,282],{},[63,277,278],{},"Bubbling during extrusion",[63,280,281],{},"Rough surface finish",[63,283,284],{},"Reduced layer adhesion",[16,286,287],{},"Filament should be stored in sealed containers with desiccants, especially in humid environments.",[28,289],{},[52,291,293],{"id":292},"_32-ambient-temperature-and-airflow","3.2 Ambient Temperature and Airflow",[16,295,296],{},"Uncontrolled airflow or rapid temperature changes may lead to:",[60,298,299,302,305],{},[63,300,301],{},"Layer separation",[63,303,304],{},"Uneven cooling",[63,306,307],{},"Dimensional inaccuracies",[16,309,310],{},"Maintaining a stable printing environment improves reliability.",[28,312],{},[52,314,316],{"id":315},"_33-build-plate-cleanliness","3.3 Build Plate Cleanliness",[16,318,319],{},"Dust, oil, or residue on the build surface can reduce adhesion. Regular cleaning significantly lowers print failure rates.",[28,321],{},[31,323,325],{"id":324},"_4-achieving-optimal-printing-results","4. Achieving Optimal Printing Results",[16,327,328],{},"The combination of PETG material selection, optimized printing parameters, and environmental control resulted in consistent and mechanically reliable printed components.",[16,330,331,332,335,336,339],{},"The finalized configuration—",[23,333,334],{},"245 °C nozzle temperature"," and ",[23,337,338],{},"70 °C bed temperature","—represents a balanced setup that prioritizes strength, repeatability, and suitability for marine environments.",[28,341],{},[31,343,345],{"id":344},"conclusion","Conclusion",[16,347,348],{},"The use of PETG filament combined with carefully optimized printing parameters enables the production of durable and reliable 3D printed components for autonomous marine platforms.",[16,350,351],{},"By selecting PETG over PLA and refining the printing setup, this manufacturing strategy supports functional integration, rapid development, and long-term operational reliability.",{"title":353,"searchDepth":354,"depth":354,"links":355},"",2,[356,362,367,372,373],{"id":33,"depth":354,"text":34,"children":357},[358,360,361],{"id":54,"depth":359,"text":55},3,{"id":100,"depth":359,"text":101},{"id":143,"depth":359,"text":144},{"id":172,"depth":354,"text":173,"children":363},[364,365,366],{"id":181,"depth":359,"text":182},{"id":211,"depth":359,"text":212},{"id":237,"depth":359,"text":238},{"id":260,"depth":354,"text":261,"children":368},[369,370,371],{"id":269,"depth":359,"text":270},{"id":292,"depth":359,"text":293},{"id":315,"depth":359,"text":316},{"id":324,"depth":354,"text":325},{"id":344,"depth":354,"text":345},"5 January 2025","Documentation of PETG filament selection and optimized 3D printing parameters to produce durable, moisture-resistant structural components for autonomous marine applications.","md","/images/research/body-design/3d-print.webp",null,{},true,"/logbook-experiments/body/3d_printing_optimization_petg_marine",{"title":5,"description":375},"logbook-experiments/body/3D_printing_optimization_PETG_marine",[385,386,387,388],"Additive Manufacturing","3D Printing","PETG","Marine Structures","6GEAHUoAHukYI0hq9wDzms-oYP_0NpOQ4LWKWaMzTfw",1768857524012]