Engineering Best Practices & Pricing Breakdown
Precision job quoting in custom fabrication requires factoring in real consumable depletion, energy tariffs, operator touch time, and machine wear. Relying on simple '3x material cost' rules frequently causes custom makers to operate at a hidden net loss on complex jobs.
By capturing true volumetric yields, machine depreciation schedules, and hourly technician burden rates, this tool ensures sustainable profit margins for commercial workshops and micro-manufacturers.
Composite Carbon Fiber Filament Comparison
| Filament Type | Tensile Strength | Continuous Heat Deflection | Spool Cost / kg |
|---|---|---|---|
| PETG-CF | 65 MPa | 74°C | $30 - $40 |
| PA6-CF (Nylon 6) | 115 MPa | 185°C | $60 - $75 |
| PA12-CF (Nylon 12) | 105 MPa | 145°C (Low Moisture) | $85 - $110 |
| PEEK-CF (Ultra-Polymer) | 140 MPa | 260°C | $450 - $650 |
Frequently Asked Questions
Why does carbon fiber filament cause high machine wear?
Microscopic chopped carbon fibers are abrasive, rapidly wearing standard brass nozzles in under 500g of extrusion. Hardened steel or ruby nozzles and hardened drive gears must be factored into hourly depreciation.
Why must Nylon be dried before and during printing?
Nylon is extremely hygroscopic and absorbs ambient humidity within hours, causing bubbling, weak layer adhesion, and steam voids during extrusion.