How to Reduce Failed Prints and Waste: 12 Proven Strategies

Every failed print costs you material, machine time, electricity, and — most importantly — the time you could have spent on paying work. For a busy print shop, even a 5% improvement in success rate can save hundreds of dollars per month. Here are twelve strategies we use to keep our failure rate below 3%.

Pre-Print Preparation

1. Inspect STL files before slicing. Check for non-manifold edges, holes in the mesh, and thin walls that won't print reliably. Tools like Meshmixer or the built-in repair in PrusaSlicer catch issues before they waste a 6-hour print. 2. Choose the right orientation. Part orientation affects strength, surface finish, support requirements, and print time. Spend an extra minute considering alternatives — it often saves hours. 3. Use proven slicer profiles. Start with manufacturer profiles and only tweak settings when you have a specific reason. Random changes create random failures.

First Layer is Everything

4. Nail your first layer. 80% of print failures happen in the first few layers. Invest time in proper bed levelling, Z-offset calibration, and first-layer settings. A slightly squished first layer (not too much) gives the best adhesion. 5. Clean your build plate. Oils from your fingers, dust, and filament residue all reduce adhesion. Wipe your plate with isopropyl alcohol before every print. 6. Use appropriate bed adhesion. Glue stick for PETG on PEI, plain PEI for PLA, Kapton tape for ABS — match your adhesion method to your material and surface.

Material Management

7. Dry your filament. Moisture is the silent killer of print quality. Popping, stringing, rough surfaces, and poor layer adhesion are all symptoms of wet filament. Invest in a filament dryer and store opened spools in sealed containers with desiccant. 8. Use quality filament. The $5 you save on cheap filament will cost you $50 in failed prints and troubleshooting time. Stick with reputable brands that have consistent diameter and colour.

Monitoring and Recovery

9. Monitor the first 30 minutes. If a print survives the first few layers and initial overhangs, it will almost certainly complete successfully. Use cameras or check in person during this critical window. 10. Enable failure detection. Modern printers like the Bambu Lab range include spaghetti detection and first-layer inspection. Use these features — they'll catch failures early and save hours of wasted time.

Continuous Improvement

11. Log every failure. Keep a simple spreadsheet recording what failed, why it failed (if you can determine), and what you changed. Patterns will emerge that help you prevent recurring issues. 12. Maintain your printers. Scheduled maintenance catches problems before they cause failures.

• Clean and lubricate linear rails monthly
• Check belt tension fortnightly
• Replace nozzles before they're worn out (every 500–1000 hours for brass, longer for hardened steel)
• Inspect PTFE tubes for heat damage quarterly
• Calibrate flow rate when switching material brands