Tempo impressão estimado

Estimated 3D print time

For a rough first pass, take the extruded volume and divide it by volumetric flow: time = volume / (layer_height · line_width · speed). Picture a solid 100×100×150 mm vase printing at 60 mm/s with a 0.2 mm layer and 0.4 mm line. That comes to about 1.5 million mm³ ÷ (0.2 · 0.4 · 60), so roughly ~13 hours. A real slicer (Cura, PrusaSlicer, OrcaSlicer, Bambu Studio) sharpens the number once it factors in acceleration ramps, retractions, travel moves, infill density, and supports. And a Bambu X1C or a Voron running input shaping will print 3–4× faster than the old bed-slingers at the same quality.

Applications

Use it to plan print queues and schedule a farm. Work out the energy cost (kWh) and filament cost when you're quoting on Etsy, Mercado Livre, or Cults3D. Compare a draft profile against a quality one before you commit to a 20-hour print. And check your quoted prices against the real time-on-machine so your margins stay healthy.

FAQ

Why is the real time longer than this estimate? The formula skips retractions, travel, acceleration, and supports, which is why slicer estimates usually land 10–30% higher.

How do I cut print time without losing quality? Bump the layer height (0.2 → 0.28 mm), drop the infill since 15% covers most parts, and turn on Arachne / variable line width.

Does the slicer estimate match reality? On a tuned profile, PrusaSlicer and OrcaSlicer stay within ±5%. Cura leans the other way and tends to come in 10–15% short.