Resin: How "well cured" are cured layers of successful solid prints?
Following statement was made: a successful (for simplicity) solid print could or even will contain an "uncured" area underneath fully cured (and potentially overcured) surface layers.
Since it's clear that layers printed at (for example) 1.8 s exposure will get less UV light than layers printed at 2 s exposure but both could be considered "fine" (if the print will not fail or will not appear overexposed) is there a way to prove this besides breaking a few older prints apart and checking if they still "smell like resin"?
My assumtion is btw. that post-processing is only needed, because of the residual (uncured) resin sticking to the print at the end. Hence remove as much as possible in wash stage and cure the rest in cure stage.
RE: Resin: How "well cured" are cured layers of successful solid prints?
My "problem" is: every printed layer (even almost opaque one) will not actually be exposed to UV light only once. The following layer, the one below recently printed one will let some (more or less depending on the amount of pigment in resin) UV light through. Maybe even deeper than for just one layer. Assuming that UV source used in printer is a more intense one, compared to UV LEDs of the curing station, wouldn't it be (more than) enough to cure printed layers completely?
RE:
Just to be clear: we're not speaking about hollow prints here. The question is: is the white circle fully cured in printing process?
Blue "outer shell" stayed in contact with uncured resin after the print finished, so it needs to be cleaned and cured again, that's clear.