What happens if 3D printing is unsuccessful?

And the consumption of consumables is increased.

Advantages of shell extraction: reducing the consumption of consumables. After hollowing out, the cross section will change from a large area to an outer circle, which will of course increase the cleaning difficulty when printing in a large area. If the interior of the model is not cleaned, it is easy to produce cracks after long-term storage. Basically, all light-curing slicing software supports the function of discharging, but according to different software, the discharging algorithm may be different and the internal shape of discharging is also different. The wall thickness is not detailed. The smaller the detail size, the thinner the inner surface, which is more suitable for the fluctuation of the outer surface, generally the same as the wall thickness, and simplifies the inner surface.