Introduction
3D printing is fascinating – but also frustrating when prints fail. The good news: most problems have simple solutions. Here are our 10 most important tips for better print results.
Tip 1: Level the Print Bed Correctly
The most common source of errors in 3D printing is a poorly leveled print bed. The first layer must adhere perfectly – this only works when the distance between nozzle and bed is correct.
- With auto-leveling: repeat calibration regularly
- Manual leveling: paper test – the nozzle should feel slight resistance
- Set Z-offset correctly
Tip 2: The Right Print Temperature
Each filament has an optimal temperature range. Too cold = poor layer adhesion. Too hot = stringing and quality loss.
- PLA: 190-220°C (nozzle), 50-60°C (bed)
- PETG: 230-250°C (nozzle), 70-85°C (bed)
- ABS: 230-250°C (nozzle), 100-110°C (bed)
- Tip: Print a temperature tower to find the optimal temperature
Tip 3: Store Filament Dry
Wet filament is one of the most common but least known printing problems. Moisture leads to:
- Crackling during printing
- Bubbles in the print surface
- Poor layer adhesion
- Reduced strength
Solution: Store filament in airtight containers with silica gel. Dry wet filament for 4-6 hours at 45-65°C in a food dehydrator.
Tip 4: Reduce Print Speed
Faster printing does not always mean better results. Especially with complex models, overhangs and thin walls, reducing speed helps:
- Standard: 50-100mm/s
- Overhangs: 20-40mm/s
- First layer: always slower (15-25mm/s)
Tip 5: Use Supports Correctly
Overhangs over 45° require supports. But too many supports make post-processing difficult. Tips:
- Tree supports instead of normal supports – easier to remove
- Rotate model to minimize supports
- Adjust support distance (0.2mm for better detachability)
Tip 6: Optimize First Layer
The first layer is the foundation of your print. It must adhere perfectly:
- Clean print bed (isopropanol)
- For smooth glass: use hairspray or glue stick
- Print first layer 5-10°C warmer
- Turn off fan for first 1-2 layers
Tip 7: Set Retraction Correctly
Stringing (threads between print parts) is annoying but fixable. Retraction (filament pullback) is the key:
- Direct extruder: 0.5-2mm retraction
- Bowden extruder: 3-7mm retraction
- Retraction speed: 25-45mm/s
Tip 8: Use the Right Slicer
The slicer makes a huge difference. Our recommendations:
- PrusaSlicer: Free, very good for Prusa and other FDM
- Bambu Studio: Optimal for Bambu Lab printers
- Cura: Most popular slicer, many plugins
- OrcaSlicer: Fork of Bambu Studio, suitable for many printers
Tip 9: Maintain Printer Regularly
Like any machine, a 3D printer needs regular maintenance:
- Replace nozzle after 200-500h
- Lubricate linear guides
- Check belts for correct tension
- Check PTFE tube for wear
Tip 10: Use the Community
The 3D printing community is huge and helpful. If you have a problem – someone has had it before you:
- Reddit: r/3Dprinting, r/prusa3d, r/BambuLab
- YouTube: Many tutorial channels
- Printables.com: Free models and mods
- Manufacturer forums and Discord servers
Conclusion
With these 10 tips you will achieve significantly better print results. The most important advice: be patient! 3D printing is a skill that is learned. Every failed print is a learning opportunity.