Slicer Best Practices Guide

Slicer Best Practices Guide

Slicer Best Practices Guide

Comprehensive guide to getting the best results from popular 3D printing slicers

🖥️ Cura

Best For: Beginners and intermediate users, wide printer compatibility

Key Features

  • User-friendly interface with preset profiles
  • Extensive printer and material profiles
  • Active community and plugin support
  • Regular updates and improvements

Best Practices

  1. Start with Presets: Always begin with the recommended profile for your printer
  2. Enable Advanced Settings: Switch to “Expert” mode for full control
  3. Use Custom Profiles: Save successful settings as custom profiles
  4. Layer Preview: Always review layer-by-layer preview before printing
  5. Support Settings: Use tree supports for easier removal

Optimal Settings for Quality Prints

Setting Recommended Value Purpose
Layer Height 0.2mm (standard), 0.15mm (high quality) Balance quality vs speed
Wall Line Count 3-4 walls Strength and surface quality
Top/Bottom Layers 5-7 layers Smooth top surface
Infill Pattern Gyroid or Cubic Strength and material efficiency
Infill Density 15-20% (general), 50%+ (strong parts) Balance strength and material use
Print Speed 50-60 mm/s Optimal quality/speed balance
Initial Layer Speed 20-30 mm/s Better first layer adhesion
Retraction Distance 1.5-2.5mm (direct drive), 4-6mm (Bowden) Reduce stringing
Retraction Speed 40-50 mm/s Effective stringing prevention

Curved Top Surfaces (Ironing)

  • Enable “Enable Ironing” in experimental settings
  • Set Ironing Flow to 5-10%
  • Ironing Speed: 30-50 mm/s
  • Iron Only Top Layer: Enabled
  • Use with 5-7 top layers for best results

Minimizing Layer Lines

  • Use Adaptive Layer Height for varying geometry
  • Enable “Smooth Spiralized Contours” for vases
  • Set Z-Seam Alignment to “Sharpest Corner”
  • Use “Random” seam position for organic shapes
  • Reduce layer height to 0.15mm or 0.1mm for smoother surfaces

Support Settings

  • Support Type: Tree supports (easier removal)
  • Support Overhang Angle: 45-50 degrees
  • Support Z Distance: 0.2-0.3mm (1-2 layers)
  • Support Interface: Enable with 0.2mm spacing
  • Support Density: 10-15%
  • Support Pattern: Grid or Zigzag
Pro Tip: Use Cura’s “Print Thin Walls” feature for detailed models, and enable “Coasting” to reduce stringing on complex prints.

🖥️ PrusaSlicer

Best For: Advanced users, Prusa printers, fine-tuned control

Key Features

  • Advanced customization options
  • Excellent support generation (Organic supports)
  • Multi-material support
  • Modifier meshes for per-region settings

Best Practices

  1. Use Presets: Start with manufacturer presets
  2. Modifier Meshes: Use for region-specific settings
  3. Organic Supports: Prefer over traditional supports
  4. Variable Layer Height: Use for optimal quality/speed
  5. Export Settings: Save profiles for different materials

Optimal Settings

Setting Recommended Value Purpose
Layer Height 0.2mm (Quality), 0.15mm (Draft) Print quality
Perimeters 3-4 perimeters Wall strength
Top Solid Layers 5-7 layers Smooth top surface
Bottom Solid Layers 4-5 layers Base strength
Infill Pattern Gyroid or Cubic Strength and efficiency
Infill Density 15-20% (general use) Material efficiency
Print Speed 45-60 mm/s Quality/speed balance
First Layer Speed 20-30 mm/s Adhesion
Retraction Length 1.5-2.5mm (direct), 4-6mm (Bowden) Stringing prevention

Curved Top Surfaces

  • Increase Top Solid Layers to 7-10 for curved surfaces
  • Use Variable Layer Height: thinner on curves (0.1mm), thicker on straight sections (0.2mm)
  • Enable “Ironing” in Print Settings → Layers and perimeters
  • Set Ironing Flow to 5-10%
  • Use Concentric top fill pattern for organic shapes

Minimizing Seams

  • Set Seam Position to “Aligned” or “Rear”
  • Use “Random” for organic models
  • Enable “Seam Gap” to reduce visibility
  • Use Variable Layer Height to minimize layer lines
  • Consider “Vase Mode” for single-wall prints

Organic Supports (Best Feature)

  • Enable “Organic Supports” in Support Material settings
  • Support Overhang Threshold: 45 degrees
  • Support Top Z Distance: 0.2mm
  • Support Bottom Z Distance: 0.2mm
  • Support Interface: Enable with 0.2mm spacing
  • Much easier to remove than traditional supports
Pro Tip: PrusaSlicer’s “Paint-on Supports” feature allows you to manually place supports exactly where needed, giving you complete control.

🖥️ SuperSlicer

Best For: Maximum customization, advanced users, fine-tuning

Key Features

  • Fork of PrusaSlicer with additional features
  • More granular control over settings
  • Advanced calibration tools
  • Better support for non-Prusa printers

Best Practices

  1. Calibration Tools: Use built-in calibration prints
  2. Advanced Settings: Explore all available options
  3. Profile Management: Create detailed material profiles
  4. Support Settings: Fine-tune support generation
  5. Speed Settings: Optimize per-feature speeds

Unique Features

  • Advanced Calibration: Built-in temperature, retraction, and flow tests
  • Per-Feature Speeds: Different speeds for perimeters, infill, supports
  • Advanced Supports: More control over support generation
  • G-code Macros: Custom start/end g-code with variables

Optimal Settings

Similar to PrusaSlicer but with additional fine-tuning options:

  • Use calibration tools to find optimal settings for your printer
  • Set different speeds for different features (perimeters, infill, supports)
  • Use advanced support settings for complex models
  • Leverage per-region settings with modifier meshes

🖥️ FlashPrint (Flashforge Printers)

Best For: Flashforge printer owners, multi-color printing

Key Features

  • Optimized for Flashforge printers
  • Multi-color and multi-material support
  • Simple interface
  • Built-in profiles for Flashforge materials

Best Practices

  • Use official Flashforge material profiles
  • Enable automatic support generation
  • Use multi-color features for color changes
  • Adjust layer height based on model complexity
  • Save custom profiles for frequently used settings

📊 General Slicer Tips for All Software

Getting Smooth Curved Top Surfaces

  1. Increase top layer count to 5-7 layers minimum
  2. Use smaller layer heights (0.15mm or 0.1mm) for curves
  3. Enable ironing feature if available
  4. Use adaptive/variable layer height for curves
  5. Choose appropriate top fill pattern (Concentric for organic shapes)
  6. Reduce print speed on top layers (30-40 mm/s)

Minimizing Layer Lines & Seams

  1. Use smaller layer heights (0.1-0.15mm) for visible surfaces
  2. Set seam position strategically (sharpest corner, rear, or random)
  3. Enable adaptive/variable layer height
  4. Use sanding and post-processing for critical parts
  5. Consider orientation to hide seams on less visible faces
  6. Use “Vase Mode” or “Spiralize” for single-wall prints

Optimal Support Settings

  1. Top Distance: 0.2-0.3mm (1-2 layers) – critical for easy removal
  2. Bottom Distance: 0.2-0.3mm – prevents support from fusing to model
  3. Support Interface: Enable with 0.2mm spacing for clean separation
  4. Support Density: 10-15% – enough support, easy removal
  5. Support Pattern: Grid or Zigzag for stability
  6. Tree/Organic Supports: Use when available – much easier removal
  7. Support Overhang Angle: 45-50 degrees – only support what’s necessary

Support Removal Tips

  • Let print cool completely before removing supports
  • Use flush cutters or pliers for initial removal
  • Use support interface layers for cleaner separation
  • Increase support Z-distance slightly if too difficult to remove
  • Consider breakaway supports or PVA for complex overhangs
  • Use tweezers for small support remnants