Where any of the materials land in the UL94 flame retardation performance test is going to be hugely impacted by the flame retardants added to the resin. ABS is all over the place with the minimum wall thickness needed to meet V0 (0.8 - 3mm generally), but it is pretty common stuff and presumably some of the filament vendors will actually provide some sort of traceability for their material (although I am a bit skeptical of this unless it's coming straight from Sabic, LG, etc).
ASA looks like it generally has lower flame test performance, at least based on the few materials I pulled up on Matweb, but again I'd assume it depends on the flame retardants added. There were a couple on there rated V0 at 1.6mm walls.
Based on experience injection molding with high performance PC/ABS blends with high flame retardant content to meet V0 at thin wall sections on some consumer devices, it's sort of a mess. The retardants have been, in a number of cases, known to plate-out into the tooling and make a hell of a mess. The trouble that stuff would create in a 3D printer seems to be to be significant, so I'd wonder how common those materials would be in printing filaments. Then again, I have never looked into those filaments, so maybe the options are good.
In all cases, I am not sure how much any of it applies to 3D printed parts since they generally will have very thin & porous walls, at least on the top & bottom faces where you (assuming) have 3-5 0.2mm layers, plus all the infill and air pockets which all sort of seem like the perfect setup for fire lol. The wall porosity probably does a number on V0 wall thickness requirements just on its own. Besides that, how flame retardant is anything else in the E30? The good thing about the 3D printed cluster housing is that, while it is a fairly large volume, it is low mass, so there's not that much to burn.
ASA looks like it generally has lower flame test performance, at least based on the few materials I pulled up on Matweb, but again I'd assume it depends on the flame retardants added. There were a couple on there rated V0 at 1.6mm walls.
Based on experience injection molding with high performance PC/ABS blends with high flame retardant content to meet V0 at thin wall sections on some consumer devices, it's sort of a mess. The retardants have been, in a number of cases, known to plate-out into the tooling and make a hell of a mess. The trouble that stuff would create in a 3D printer seems to be to be significant, so I'd wonder how common those materials would be in printing filaments. Then again, I have never looked into those filaments, so maybe the options are good.
In all cases, I am not sure how much any of it applies to 3D printed parts since they generally will have very thin & porous walls, at least on the top & bottom faces where you (assuming) have 3-5 0.2mm layers, plus all the infill and air pockets which all sort of seem like the perfect setup for fire lol. The wall porosity probably does a number on V0 wall thickness requirements just on its own. Besides that, how flame retardant is anything else in the E30? The good thing about the 3D printed cluster housing is that, while it is a fairly large volume, it is low mass, so there's not that much to burn.
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