How to Calculate 3D Printing Cost: Simple Steps Explained

To calculate 3D printing cost, add the cost of material used, machine operation time, and any post-processing expenses. Multiply the material weight by its price per gram, then multiply printing time by the machine's hourly rate, and finally add finishing costs if any.

Syntax

The basic formula to calculate 3D printing cost is:

• Material Cost: Weight of material (grams) × Price per gram
• Machine Cost: Printing time (hours) × Machine hourly rate
• Post-Processing Cost: Any finishing or labor costs

Total Cost = Material Cost + Machine Cost + Post-Processing Cost

python

total_cost = (material_weight * material_price_per_gram) + (printing_time * machine_hourly_rate) + post_processing_cost

Example

This example calculates the total cost for a 3D print job using given material weight, printing time, and finishing cost.

python

material_weight = 50  # grams
material_price_per_gram = 0.20  # dollars per gram
printing_time = 2.5  # hours
machine_hourly_rate = 10  # dollars per hour
post_processing_cost = 5  # dollars

total_cost = (material_weight * material_price_per_gram) + (printing_time * machine_hourly_rate) + post_processing_cost
print(f"Total 3D printing cost: ${total_cost:.2f}")

Output

Total 3D printing cost: $32.50

Common Pitfalls

Common mistakes when calculating 3D printing cost include:

• Ignoring the machine hourly rate, which can underestimate cost.
• Not accounting for post-processing like cleaning or painting.
• Using incorrect material weight by not considering support structures or infill density.
• Forgetting to include electricity or maintenance costs if relevant.

python

wrong_total_cost = material_weight * material_price_per_gram  # Missing machine and post-processing costs
correct_total_cost = (material_weight * material_price_per_gram) + (printing_time * machine_hourly_rate) + post_processing_cost
print(f"Wrong cost: ${wrong_total_cost:.2f}")
print(f"Correct cost: ${correct_total_cost:.2f}")

Output

Wrong cost: $10.00
Correct cost: $32.50

Quick Reference

Tips for accurate 3D printing cost calculation:

• Always measure material weight including supports.
• Use the machine's actual hourly rate, including electricity and wear.
• Include post-processing time and materials.
• Check material prices regularly as they can vary.

Key Takeaways

Calculate 3D printing cost by adding material, machine time, and post-processing expenses.

Use accurate material weight including supports and infill for precise cost.

Include machine hourly rate to cover operation and maintenance costs.

Don't forget finishing costs like cleaning or painting in your total.

Regularly update material prices and machine rates for correct estimates.