How Long Does 3D Printing Take? Complete Time Guide
One of the most common questions from people new to 3D printing is "how long will my print take?" The answer ranges from 30 minutes to over 200 hours depending on size, complexity, and settings. This guide breaks down the factors that affect print time and helps you estimate duration before you start.
Quick Answer: Typical Print Times
Here are ballpark print times for common objects using standard FDM settings:
Small Objects
Keychains, chess pieces, small toys
30 min - 2 hours
Medium Objects
Phone cases, figurines, small containers
3 - 8 hours
Large Objects
Vases, helmets, decorative pieces
12 - 40 hours
XL Objects
Full costumes, furniture, large props
50 - 200+ hours
Factors That Affect Print Time
1. Layer Height
Layer height is the thickness of each horizontal slice. Lower heights mean finer detail but more layers to print.
- 0.1mm (fine): Best detail, slowest - good for miniatures
- 0.2mm (standard): Good balance of speed and quality
- 0.3mm (draft): Fastest, visible layers - good for prototypes
Rule of thumb: Doubling layer height roughly halves print time.
2. Infill Density
Infill is the internal structure that gives your print strength. More infill = stronger but slower.
- 10-15%: Decorative items, display pieces
- 20-30%: General purpose, most prints
- 50-100%: Functional parts, load-bearing items
3. Print Speed
Most FDM printers run at 40-60mm/s by default. Modern printers like Bambu Lab can hit 200-500mm/s.
Example: A print taking 8 hours at 50mm/s might take only 3 hours at 150mm/s on a high-speed printer.
4. Support Structures
Overhangs greater than 45 degrees need support material. Supports add time both for printing and removal. Complex shapes with many overhangs can double or triple print time.
5. Object Height
Print time scales more with height than width. A tall, thin object takes longer than a short, wide one with the same volume because of the number of layers and travel moves.
Real-World Examples
Here are actual print times from common projects:
| Object | Size | Time |
|---|---|---|
| Benchy (test boat) | 6cm long | 45 min - 2 hrs |
| Phone stand | 10cm tall | 2 - 4 hrs |
| Tabletop miniature | 28mm scale | 2 - 6 hrs |
| Lithophane (photo) | 15x20cm | 8 - 15 hrs |
| Cosplay helmet | Full-size | 30 - 60 hrs |
| Full armor set | Multiple pieces | 100 - 200+ hrs |
How to Estimate Print Time Before Starting
The most accurate way to estimate print time is using slicer software. Here is how:
Step-by-Step
- Download a slicer like Cura, PrusaSlicer, or Bambu Studio (all free)
- Import your 3D model (STL, OBJ, or 3MF file)
- Select your printer profile and material
- Adjust settings (layer height, infill, speed)
- Click "Slice" - the software calculates exact time and material usage
Slicer estimates are usually accurate within 5-10% for well-calibrated printers. Add a buffer for potential issues like retries or bed adhesion problems.
Tips for Faster Print Times
- Increase layer height for non-visible surfaces or prototypes
- Reduce infill to 15-20% for decorative items
- Orient your model to minimize height and supports
- Use a larger nozzle (0.6mm or 0.8mm) for big prints
- Print multiple small objects at once to reduce travel time
Warning: Pushing speed too high can cause quality issues like ringing, layer shifting, or poor adhesion. Find the right balance for your printer and project.
When Using a Printing Service Makes Sense
If you do not own a printer or your project would take days, using a printing service can save you time:
- No waiting for your own printer - makers can often start immediately
- Multiple printers - large projects can be split across machines
- High-speed printers - many makers have fast modern machines
- No failed print risk - professionals know their equipment
When you post a project on 3D Print Bounty, makers include estimated turnaround time in their bids so you can choose based on your deadline.
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