How Long Does It Take to 3D Print?
Quick Answer
Minutes for small objects, 24+ hours for large or detailed prints. A typical phone case takes 1–3 hours, a miniature figure 2–6 hours, and a full cosplay helmet 20–40+ hours.
Typical Duration
Quick Answer
30 minutes to 24+ hours is the realistic range for most 3D prints. Small, simple objects like a keychain take 15–45 minutes. Medium-complexity prints like phone cases or figurines take 1–6 hours. Large functional parts or detailed models can take 12–40+ hours. The biggest factors are print size, layer height, infill percentage, and printing technology.
Print Time by Object Size
| Object | Approximate Size | FDM Time | Resin (SLA) Time |
|---|---|---|---|
| Keychain / small token | 3 x 3 x 1 cm | 15–30 min | 30–60 min |
| Phone case | 15 x 7 x 1 cm | 1–3 hours | 1–2 hours |
| Miniature figure (28mm) | 2 x 2 x 4 cm | 1–3 hours | 30–90 min |
| Chess piece set | Various | 8–16 hours | 4–8 hours |
| Vase or decorative item | 10 x 10 x 20 cm | 6–12 hours | 3–6 hours |
| Prosthetic hand | 20 x 10 x 8 cm | 12–20 hours | Not typical |
| Cosplay helmet | 25 x 20 x 25 cm | 20–40 hours | 12–24 hours |
| Full-size prop (printed in parts) | 50+ cm assembled | 40–100+ hours | 30–60+ hours |
FDM vs. Resin Printing
FDM (Fused Deposition Modeling)
The most common desktop 3D printing technology. A thermoplastic filament is melted and deposited layer by layer.
- Speed range: 30–100 mm/s (standard), up to 300–500 mm/s on high-speed printers
- Layer height: 0.1–0.3 mm (thinner = slower but smoother)
- Best for: Functional parts, prototypes, large objects, cost-effective printing
- Print time advantage: Faster for large, low-detail objects
Resin (SLA/MSLA/DLP)
Uses UV light to cure liquid photopolymer resin layer by layer. Produces much finer detail.
- Layer height: 0.025–0.1 mm
- Best for: Miniatures, jewelry, dental models, high-detail work
- Print time advantage: Faster for batches of small objects (prints the entire layer at once regardless of how many objects are on the build plate)
- Note: Requires post-processing (washing in IPA and UV curing), which adds 15–30 minutes
Key Factors That Affect Print Time
Layer Height
The single biggest impact on print time. Halving the layer height roughly doubles the print time.
| Layer Height | Surface Quality | Speed Impact |
|---|---|---|
| 0.3 mm | Draft quality, visible lines | Fastest |
| 0.2 mm | Standard quality, good balance | Baseline |
| 0.12 mm | High quality, smoother surfaces | ~1.7x slower |
| 0.08 mm | Very high quality | ~2.5x slower |
| 0.04 mm | Ultra-fine (resin printers) | ~5x slower |
Infill Percentage
Infill is the internal structure of a print. Higher infill means more material inside and longer print times.
- 0–10% infill: Hollow or near-hollow; fastest but weakest
- 15–20% infill: Good for decorative objects (most common default)
- 50% infill: Strong functional parts
- 100% infill: Solid; strongest but slowest (rarely necessary)
Reducing infill from 20% to 10% can cut print time by 10–15%. Going from 20% to 100% can double or triple the time.
Print Speed
Modern FDM printers have dramatically different speed capabilities:
- Standard printers (Ender 3, Prusa MK3S+): 40–80 mm/s typical
- High-speed printers (Bambu Lab P1S, Prusa MK4): 150–300 mm/s
- Ultra-fast printers (Bambu Lab X1C): 300–500 mm/s with input shaping
A print that takes 8 hours on a standard printer might finish in 2–3 hours on a high-speed machine.
Support Structures
Overhanging features need support material, which adds both print time and post-processing time. Orienting your model to minimize supports can significantly reduce total time.
Tips to Speed Up 3D Prints
- Increase layer height for non-visible or draft prints (0.28–0.32 mm)
- Reduce infill to 10–15% for decorative objects
- Use a larger nozzle — a 0.6 mm nozzle prints ~40% faster than a 0.4 mm nozzle with acceptable quality
- Orient the model to minimize the Z-height (fewer layers = less time)
- Minimize supports by designing or orienting parts with 45-degree rule in mind
- Use a high-speed printer with input shaping and pressure advance
- Print multiple small objects in one batch to reduce per-part overhead
- Use "vase mode" (spiralize outer contour) for single-wall containers — turns a 4-hour vase into a 45-minute print
Don't Forget Post-Processing Time
The print itself is only part of the timeline:
- Support removal: 5–30 minutes
- Sanding: 15 minutes–2 hours depending on finish desired
- Priming and painting: 2–8 hours (including drying time)
- Resin post-curing: 15–30 minutes
- Assembly (multi-part prints): 30 minutes–several hours
- Acetone smoothing (ABS): 30–60 minutes plus ventilation time