Custom Manufacturing Cost Calculator
Estimate job-shop custom manufacturing costs including engineering CAD design, CAM programming, specialty raw stock, and rush order premiums.
Custom Job & Engineering Parameters
Custom Manufacturing Job Cost Formula
Total Job Cost = (Engineering + CAM) + (Raw Stock + Machining Hours × Shop Rate) + Post-Processing + Inspection + Rush Surcharge- Engineering & CAM: CAD model preparation, DFM modifications, and toolpath generation.
- Machine Shop Rate: Hourly rate covering machine depreciation, facility overhead, and operator wages.
- Rush Premium: Expedited schedule surcharge (typically 10%–25%) for urgent delivery.
Step-by-Step Worked Example
Calculation Steps:
- Engineering Cost = $950 + $400 = $1,350
- Fabrication Cost = $650 + $1,020 = $1,670
- Finishing & Inspection = $250 + $180 = $430
- Base Job Cost = $1,350 + $1,670 + $430 = $3,450
- Rush Surcharge (15%) = $3,450 × 0.15 = $517.50
- Total Project Cost = $3,967.50 ($1,983.75 / bracket)
How to Use This Calculator
- 1Enter engineering design and CAM programming hours.
- 2Input material cost and machine spindle hours with your shop hourly rate.
- 3Add post-processing, anodizing/coating, and CMM inspection requirements.
- 4Specify rush surcharge percentage if expediting delivery.
Assumptions & Limitations
- Shop hourly rate encompasses standard machine depreciation, power, and tooling wear.
- Raw stock reflects gross material blank dimensions prior to chip removal.
Frequently Asked Questions
What is a typical machine shop hourly rate in the US?
US machine shop hourly rates typically range from $75 to $125 per hour for standard 3-axis CNC milling, and $120 to $200+ per hour for 5-axis precision machining and wire EDM.
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