How much faster is draft quality?

Draft (0.3mm layers) typically prints 2-3x faster than fine (0.1mm layers) for the same part, because it uses one third the number of layers. As a reference, a 3DBenchy slices to 160 layers at 0.3mm (about 1h07m), 240 at 0.2mm (about 1h35m) and 480 at 0.1mm (about 2h56m) — so 0.1mm to 0.3mm is roughly 2.6x faster.

Why does halving the layer height roughly double the time?

Layer height only changes the vertical (Z) resolution, not the XY toolpath. Halving the layer height doubles the number of layers, and each layer takes about the same time to print at a fixed speed, so the total time roughly doubles. Print time is therefore close to inversely proportional to layer height.

Does layer height affect strength?

Layer height has minimal effect on tensile strength. Thicker layers may actually give slightly better layer adhesion. Wall thickness and infill percentage matter far more for strength.

When should I use fine layers?

Use 0.1mm or lower for visible surfaces that need to look smooth, miniatures, and parts with fine details. For functional parts hidden from view, draft quality saves hours.

3DPrintCalcs

Time vs Quality Calculator — Layer Height Comparison

Compare print time at different layer heights and speed settings.

Model Height

Z-axis height of the part in mm — drives the layer count

Base Print Speed

Print-head speed in mm/s — scales every profile's per-layer time equally

Fine Layer

Fine-profile layer height in mm (0.1 typical)

Standard Layer

Standard-profile layer height in mm (0.2 typical)

Draft Layer

Draft-profile layer height in mm (0.3 typical)

How We Calculate This

Formula

Layers = Model height / Layer height (rounded up)
Time per layer = your seconds-per-layer figure scaled by 60 / Base speed
Print time = Layers x Time per layer
Time saved = (Fine time - Draft time) / Fine time

Layer height changes only the Z resolution, not the XY toolpath, so at a fixed print speed each layer takes about the same time and total time is driven by layer count alone. A typical FDM layer takes 30-60 seconds; raising the base print speed scales every profile's per-layer time down equally.

Frequently Asked Questions

Related Calculators

Print Cost Calculator

Calculate total print cost including material, electricity and machine wear.

Electricity Cost Calculator

Estimate the electricity cost of a print based on wattage and duration.

Batch Printing Calculator

Calculate time and cost savings from printing multiple parts in one batch.

Material Waste Calculator

Estimate wasted material from failed prints, supports and purge lines.

Printer ROI Calculator

Calculate how quickly your printer pays for itself based on usage.

Last updated: February 2026

All calculations are estimates. Always verify settings with test prints before committing to final prints.