Jacket Mode for better dimensional accuracy

[Talon5ilver]

I'm not sold on the name, but I'm confident the idea is gold. This would be a setting that exposes a core mass, then the perimeter, or the other way around if needed (ideally without the build platform lifting). This should solve the thermal expansion and contraction issues with large area exposures, or engineering resins that need longer exposure times, expanding more than smaller area exposures or bleeding into nearby objects. By curing the bulk of the mass first, all the changes in volume occur independently from the final dimensional exposure.
I have made this suggestion to primary slicers because the algorithm could theoretically be a modification of hollowing or vase mode, but so far it has not been implemented. I don't know enough about how UVtools works under the hood to know how it would be implemented. Maybe for UVtools the user needs to model the core separately and align it in a second slice, then UVtools shuffles the two together. Doing it that way might open the door for even more advanced techniques. For example, over or under exposing sections of the same layer to introduce or counteract thermal stress, causing or preventing warping. Being able to do this with more than 2 different exposures could even enable a kind of annealing, reducing internal stresses and improving the physical characteristics of functional parts.

[sn4k3]

Check Tools - Phased Exposure.
As for lifts, they are mandatory.