3D Print Purge Waste Calculator

Calculate the mass, volume, and cost of purge waste (poop) and prime towers in multi-color 3D printing. Free waste reduction estimator.

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How to Use Purge Waste Calculator

  1. Enter your filament cost per kilogram (e.g. $20/kg).
  2. Input total purge waste mass reported by slicer (in grams).
  3. Include prime tower mass (in grams).
  4. Instantly calculate the exact monetary cost of purged waste and total waste percentage.

What is the Purge Waste Calculator?

Calculates the financial expense and material waste percentage of sacrificial prime towers and purge wiper discharge.

Formula Used

• Total Waste (g) = Purge Poop Mass (g) + Prime Tower Mass (g) • Waste Cost ($) = Total Waste (g) × (Spool Price / 1000) • Waste Ratio (%) = (Total Waste / (Model Mass + Total Waste)) × 100

Real-World Example

A 50g figurine generates 150g of purge waste with $20/kg filament: • Total Waste = 150g (75% of all extruded filament is waste!) • Waste Cost = 150g × $0.02 = $3.00 wasted.

Accuracy and Limitations

Tuning flush multipliers down (e.g. from 1.0 to 0.6) significantly decreases waste without color bleeding.

Who It Is For

Print farm operators auditing scrap costs and makers tuning flush volumes.

Frequently Asked Questions

What is purge waste in multi-color 3D printing?
Purge waste (often called 'filament poop') is the extruded material ejected during nozzle cleaning between color changes to prevent the previous color from bleeding into the new color.