1. What is PLA Filament Cost per Meter Calculator?

Definition: This calculator estimates the cost per meter of PLA filament used in 3D printing based on length, density, nozzle cross-section, and price per gram.

Purpose: It helps 3D printing enthusiasts and professionals calculate material costs for their projects and optimize filament usage.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C_m \) — Cost per meter ($/m)
• \( L_f \) — Filament length (mm)
• \( \rho_f \) — Filament density (g/mm³)
• \( A_n \) — Nozzle cross-sectional area (mm²)
• \( P_f \) — Filament price ($/g)

Explanation: The formula converts length to meters, calculates the volume of filament used, determines the mass, and then computes the cost based on price per gram.

3. Importance of Filament Cost Calculation

Details: Accurate cost estimation helps in budgeting 3D printing projects, comparing material options, and optimizing print settings for cost efficiency.

4. Using the Calculator

Tips: Enter the filament length in mm, density (default 0.00125 g/mm³ for PLA), nozzle cross-section (default 0.25 mm² for 0.4mm nozzle), and price per gram (default $0.02). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for PLA filament?
A: PLA filament typically has a density of about 1.25 g/cm³ (0.00125 g/mm³).

Q2: How do I determine nozzle cross-sectional area?
A: For round nozzles, use \( \pi \times (diameter/2)^2 \). A standard 0.4mm nozzle has ~0.126 mm² area.

Q3: Why divide length by 1000?
A: This converts millimeters to meters for cost per meter calculation.

Q4: How accurate is this calculation?
A: It provides a good estimate but actual cost may vary based on infill percentage, print settings, and waste.

Q5: Can I use this for other materials like ABS or PETG?
A: Yes, but you'll need to adjust the density value accordingly (ABS ~1.04 g/cm³, PETG ~1.27 g/cm³).