Build a 3D printing quote from real variable costs and target contribution margin.
Quote 24 PETG cable guides where the slicer shows $7.80 in filament but the job also needs cleanup, packaging, and queue time. Cost floor -> failure allowance -> target contribution margin The common shortcut is quoting from material plus a casual markup. That ignores labor, machine time, failure risk, and the overhead each small job must help cover. Cost floor Add direct expected costs: $8 material + $18 machine time + $22 cleanup labor + $4 consumables + $3 payment and packing = $55. The floor starts with cash and capacity the job consumes before any profit or risk buffer.…
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