Estimateur de temps d’impression 3D

The 3D Print Time Estimator predicts FDM (Fused Deposition Modeling) print duration from model volume, layer height, infill percentage, and print speed — the four parameters slicers (Cura, PrusaSlicer, OrcaSlicer, Bambu Studio) use to schedule prints. Real-world print time depends on extrusion volumetric rate (mm³/s) governed by hotend capacity and nozzle diameter, plus overhead for travel moves, retractions, infill pattern changes, and slow-down on small features. This calculator provides a baseline ±20% estimate before slicing — useful for ordering filament, scheduling work, or comparing settings. Key relationships: layer height controls vertical resolution and stacks (0.2mm is standard, 0.12mm slow but detailed, 0.28mm fast but rough). Print speed (40–250 mm/s depending on printer class) is the linear speed of the nozzle. Infill % is the internal pattern density (15–25% typical, 80%+ for structural parts). Volume comes from the model itself (CAD report or slicer estimate). Formula approximates time = volume / (speed × layer × nozzle_width × 60) × 60, then adjusts for infill ratio. Why estimates vary from actual: every printer has different acceleration limits (Bambu X1C can hit 200+ mm/s, Ender 3 stable at 60 mm/s), every model has different geometric complexity (flat tops print faster than curved surfaces), supports add 20–40% overhead, and first layers print slower. Hotend volumetric capacity matters most for fast printers: a 0.4mm nozzle at 60 mm/s with 0.2mm layer = 4.8 mm³/s, which is at the edge of most stock hotends. Print speed beyond volumetric limit causes under-extrusion regardless of motor speed. Users: maker hobbyists planning overnight prints, print farm operators batching jobs, Etsy sellers pricing custom orders, students hitting deadline submissions, engineers iterating on prototypes. The estimate helps decide whether to print at higher quality (slow but better) vs draft mode (fast iteration). For commercial use, factor in machine hour cost ($0.50–2.00/hr depending on printer wear, electricity, maintenance) — a 12-hour print isn't free machine time.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

1. 1Step 1 — Get model volume from CAD report (Fusion 360, OnShape) or slicer estimate after slicing
2. 2Step 2 — Enter your preferred layer height (0.2mm standard balance of speed and quality)
3. 3Step 3 — Enter print speed your printer can sustain (check printer spec or recent prints)
4. 4Step 4 — Enter infill percentage (15–25% typical, higher for structural parts)
5. 5Step 5 — Calculator approximates effective volume = V × (0.3 + 0.7 × infill) accounting for hollow interior
6. 6Step 6 — Computes time = effective volume / extrusion rate, plus overhead for travel/retracts
7. 7Step 7 — Output ±20% — actual time depends on printer-specific factors; final answer comes from slicer

• !Estimating with stock speed when printer can sustain much faster (Bambu/Voron-class)
• !Forgetting supports add 20–40% to estimates
• !Using volume from outer dimensions (Length × Width × Height) instead of actual model volume
• !Underestimating cooling time between layers on small parts (forces speed reduction)
• !Comparing time without comparing quality — same time can produce vastly different surface finishes