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Filaments Mechanical Properties Dataset (discuss.tchncs.de)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/3dprinting

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I was wondering whether there is somewhere a dataset collecting the mechanical properties of different filaments.

Some filament vendors provide some mechanical properties data about their filament, others don't. On the few comparison I was able to make, I noticed big differences among the same filament type, such as PLA+.

For example, regarding the Flexural Modulus, one brand of PLA+ could report 4175Mpa, while another one reports 1973Mpa. Clearly, the second offers a much higher Elongation at Break. This means that depending on the application, it could make sense to select one brand of filament with respect to another (of the same type).

I would expect this type of mechanical properties to be easy to fetch, but a lot of vendors provide only how accurate the diameter of their filaments is.

(edit: typo)

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[–] [email protected] 4 points 1 year ago

Thanks a lot for for corroborating the issue. Indeed, I am aware that labeling could be blurry since everyone keeps the blends used for their filament secret. This is the reason why I am interested in knowing if someone collected the numbers. Being able to compare Elastic Modulus, Elongation at Break, etc. could solve the problem of having to use the labels when picking a filament (considering also the cost $$). PLA+ was just an example, where everyone says that it's "more though" than "ordinary PLA", which I could translate with "less brittle". However, without absolute numbers the information contained in such statements is laughable.

Without numbers, either I just wait to have a bit of experience with different filaments, or I will need watch all those videos with users printing hooks and running tensile test on them.