Standard PLA is Actually Strong
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Most individuals in the 3D printing world regard standard PLA as a weak material. But this is actually not the case - standard PLA is quite strong in many metrics. It is very rigid, has good tensile strength, and can maintain a pretty high load of pressure.
The reason individuals think of PLA as weak is that it has a pretty low impact resistance. This means if you drop your print it is very likely to break - but that isn't the only way to measure strength.