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There are so many factors, it is impossible to say. With home 3D printing (Fused Deposition Modelling, FDM) the strength is higher in the plane of the layers, but lower between the layers. This is a bit like in wood where the strength along the grain is higher than across it. Strength can also vary depending on how you design your model. Many larger 3D prints are not completely solid but have some kind of mesh on the inside to save weight and time.
However printing methods like MJF or SLS have very different properties and available materials. The possibilities are huge (and not fully explored yet).
Do you have a particular project or problem in mind?
chiroshi
hey guys,sorry about moron q,how strong 3D printed bits / can be ? As same as hard wood or as some soft metal (alloy, brass )
Or like a solid nylon strength ?
I just cannot get my head around this new tech stuff,sorry I know so little about this /