Videos tagged with Material Properties

This video details the testing of Polymaker PA12 CF Nylon filament for 3D printing functional parts, including AR-15 components. It covers tensile and impact testing of dry and wet, annealed and unannealed samples, highlighting the material's low water absorption, good stiffness retention, and smooth surface finish. Concerns are raised regarding heat deflection temperature and potential creep.

This video details a study on Taulman Glass Fiber Nylon's properties after various annealing and moisture exposure treatments. The presenter, an experienced 3D printing enthusiast, tests how air annealing, oil annealing, and ambient humidity affect the material's tensile strength and stiffness. The findings suggest that while annealing improves nylon's properties, moisture significantly degrades them, and oil annealing can mitigate some moisture absorption effects.

This video details a comprehensive testing methodology for 3D printing filaments, specifically focusing on 3D870 PLA. The instructor outlines steps for calibrating extrusion, determining optimal printing temperatures, and testing impact resistance and tensile strength across different print orientations. An experimental method for assessing high-temperature performance is also demonstrated, highlighting the importance of consistent testing protocols for accurate material property evaluation.

This video tests the bullet-stopping capabilities of Red Vines licorice against various calibers. A single bucket of licorice stops a .22 LR, while three buckets are needed for 9mm and 7.62x39mm rounds. More powerful rounds like the .50 AE and .308 Win are stopped by the fourth and third buckets respectively, with the .50 BMG requiring five buckets. The experiment highlights the surprising effectiveness of dense, pliable materials in projectile mitigation.