Filament cost is only the visible part of a quote. Failed prints, machine wear, finishing, packaging, labor, overhead and payment processing consume margin.
Why this matters
Filament cost is only the visible part of a quote. Failed prints, machine wear, finishing, packaging, labor, overhead and payment processing consume margin. The business case must rest on customer requirements, documented assumptions, feasible manufacturing processes and repeatable economics.
How to put it into practice
Build a quote sheet using material grams, expected machine hours, failure reserve, handling time, shipping and target contribution margin. Quote both routine and rush work explicitly.
A practical five-step exercise
- Write the customer problem in one sentence.
- List three constraints that must be satisfied before production.
- Collect one real price, time or demand measurement.
- Choose a low-risk test and define what success would look like.
- Document the result and update your business plan.
The next decision
For a $30 order with $11 in variable cost, contribution before fixed costs is $19. That is not the same as net profit.
Build from evidence: interview customers, document workflow, verify critical claims, and measure the outcome before adding complexity.
Explore the related MBA module or review the full PDF course.