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Morphology of exemplar particles emitted during operation of vat polymerization printers: (a) nanoscale-cluster particle observed in emissions from all printers; (b) aggregate particle emitted by the Form 1+ printer; (c) compact irregular particle emitted by the Pegasus Touch printer; (d) discrete spherical particle emitted by the Nobel 1.0A printer; (e) discrete spherical particle emitted by the Titan 1 printer; and (f) flake-like particle emitted by the M-One printer.
