Not every job needs the same math. For quick quotes, use the hourly machine rate method: add up your printer’s monthly costs—lease, power, maintenance—divide by runtime hours, then tack on material and labor. It works for prototypes and one-offs where speed beats precision. For high-volume work, switch to per-part costing: amortize setup time across the full batch, factor in nesting efficiency, and weigh each piece. This method shines when you quote 500 identical brackets.
The third path is activity-based costing. It tracks every touch—file prep, print monitoring, support removal, quality check—and assigns dollars to each step. It takes more setup, but it exposes your true profit leaks. Most shops blend all three: hourly for rush jobs, per-part for repeats, activity-based for custom contracts. The key is picking one method per quote and sticking to it. Mixed signals confuse clients and erode your margins.
FAQ
Q: Which method works best for a small print shop with ten printers?
A: Start with hourly machine rates. They are simple to explain and quick to calculate. Add activity-based tracking once you hit fifty jobs a month and need to see where time actually goes.
Q: How do I split electricity costs fairly across different printer models?
A: Meter your high-draw machines separately, or use manufacturer wattage specs plus 20% for heat loss. Budget printers sip power; industrial resin tanks gulp it. Price them in different tiers.
Q: Should I include design fixes in my cost calculation?
A: Yes, but bill them separately. Call out file repair, wall-thickness fixes, and orientation advice as pre-print services. This protects your base rate and educates clients on what “just print this file” really involves.
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