Deeper pro RC boat arm

Im a beginner carpfisher and with my “veteran” carpfisher friend we think this arm.the deeper arm is modular and any parts ar printed separetly, in my RC boat I use velcro to stick the entire structure and it work fine, don't use iron nuts and bolts because they will rust in a short time the steel one is a better choice.this arm is compatible with Deeper Pro and Pro+ material type: sunlu PETGinfill: 15% (raccomended)printer: artillery genius an bambu A1