In the process of creating lighted objects using 3D printed components, the choice of what material to employ becomes a significant consideration. Unlike novelties and hobby interests, which generally focus on cost or printer compatibility issues (material print temperatures, warping, cracking, etc.) my focus is on creating objects with high surface finish quality, extremely long life, bonding strength, overall toughness, and secondary finish capability.
Primary Materials Considered
There are three primary materials commonly used in FDM processing.
ABS or Acrylonitrile Butadiene Styrene is the most commonly used material in FDM printing of end-use parts. It is also used to produce a wide range of plastic products you encounter every day, from toothbrushes to kitchen appliances. It is tough, can tolerate some heat, and is impact resistant. It has enough flexibility to move before it breaks. ABS glues very well using solvents, making strong bonds between parts to create larger assembled components. It sands and well, and since it is a medium surface energy plastic, so wil, wet out and takes paints and adhesives well – when properly prepared. However, ABS, due to its high Butadiene rubber content, is not tolerant of UV Light exposure, which will break it down over time, making it brittle and causing it to shrink and crack around fasteners. ABS can also be a little brittle in thin wall sections, resulting in cracking around fasteners and between layers.