In additive manufacturing, the different heat sources used can have limited
lifetimes. When the lifetime of such element is relatively short, it incurs high
losses in the form of wasted builds and reduced yield. In order to reduce these
losses, there may be contingency plans, or “backup printmodes”, that enter into
effect when such a heat source is lost (e.g. a heating lamp burns out).
Printmodes used as backup will typically incur extra costs per layer due to
tradeoffs by design, therefore one should minimize their use as possible, based on
cost optimization. This document describes a method to determine if, for a
particular job, it is worthwhile to the job until the end (starting from the moment
that the heat source is lost).
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INC, HP, "ECONOMY BASED BACKUP MODE TRIGGER", Technical Disclosure Commons, (July 15, 2019)