Design Blueprint: Envelope Blank Nesting

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24121379): This paper addresses a practical question in waste: envelopes are bought ready-made by offices that can afford them and made by hand, from cut blanks, where they cannot. Using a self-contained computation from stated assumptions, the study evaluates the options across the range a small operation ordinarily meets and identifies the point at which the balance of cost, quality and material use changes. The headline findings are that dl best blanks is 6; dl waste pct is 24.5; c5 best blanks is 4; c5 waste pct is 36; c6 best blanks is 9; c6 waste pct is 13.8; recommended format is C6. These figures Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.