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COEX PLA print settings
Print COEX PLA with a 220–240°C nozzle and a 0–60°C bed, with the part-cooling fan up to 100% (off for the first layer), and dry it at 55°C for 3–6 hours.
These are COEX 3D's recommended starting settings, made to match the COEX 3D filament settings tables for every filament we make in Green Bay, Wisconsin. Treat each value as a starting point and adjust it for your printer.
1. Material notes
- Keep filament dry: store it sealed, and dry it again only after the spool has been exposed to air
- PLA is less hygroscopic than other materials, but proper storage helps maintain quality
- Dry an opened spool at 55°C for 3–6 hours
- Check for any visible damage before use
2. Temperature settings
Nozzle temperature: 220–240°C
Bed temperature: 0–60°C
- Wash the bed often for good adhesion: use dish soap and rinse thoroughly to remove oils
- Bed adhesion: often none is needed on PEI; otherwise use a glue stick, painter's tape or WELD3D
- Use a brim for tall or large prints
- Keep the ambient temperature stable
3. Basic parameters
PLA (polylactic acid) is a biodegradable polymer known for its ease of printing, good surface quality and dimensional accuracy. It suits decorative parts, prototypes and general printing where mechanical properties are not critical.
| Nozzle | Layer height | Line width | Max volumetric speed | Nozzle temperature |
|---|---|---|---|---|
| 0.4mm | 0.2mm | 0.42mm | 12.0 mm³/s | 220°C |
| 0.6mm | 0.3mm | 0.62mm | 27.0 mm³/s | 225°C |
| 0.8mm | 0.4mm | 0.82mm | 48.0 mm³/s | 230°C |
| 1.0mm | 0.5mm | 1.02mm | 75.0 mm³/s | 235°C |
4. Speed settings
0.4mm nozzle (max volumetric speed 12.0 mm³/s)
| Line type | Percentage | Speed |
|---|---|---|
| External perimeter | 50% | 71.43 mm/s |
| Internal perimeters | 75% | 107.14 mm/s |
| Infill | 100% | 142.86 mm/s |
| Top/bottom | 60% | 85.71 mm/s |
| First layer | 30% | 42.86 mm/s |
0.6mm nozzle (max volumetric speed 27.0 mm³/s)
| Line type | Percentage | Speed |
|---|---|---|
| External perimeter | 50% | 72.58 mm/s |
| Internal perimeters | 75% | 108.87 mm/s |
| Infill | 100% | 145.16 mm/s |
| Top/bottom | 60% | 87.10 mm/s |
| First layer | 30% | 43.55 mm/s |
0.8mm nozzle (max volumetric speed 48.0 mm³/s)
| Line type | Percentage | Speed |
|---|---|---|
| External perimeter | 50% | 73.17 mm/s |
| Internal perimeters | 75% | 109.76 mm/s |
| Infill | 100% | 146.34 mm/s |
| Top/bottom | 60% | 87.80 mm/s |
| First layer | 30% | 43.90 mm/s |
1.0mm nozzle (max volumetric speed 75.0 mm³/s)
| Line type | Percentage | Speed |
|---|---|---|
| External perimeter | 50% | 73.53 mm/s |
| Internal perimeters | 75% | 110.29 mm/s |
| Infill | 100% | 147.06 mm/s |
| Top/bottom | 60% | 88.24 mm/s |
| First layer | 30% | 44.12 mm/s |
5. Retraction settings
| Nozzle | Distance | Speed | Z-hop |
|---|---|---|---|
| 0.4mm | 0.5–0.8mm | 45mm/s | 0.2mm |
| 0.6mm | 0.6–1.0mm | 45mm/s | 0.2mm |
| 0.8mm | 0.8–1.2mm | 40mm/s | 0.2mm |
| 1.0mm | 1.0–1.5mm | 35mm/s | 0.2mm |
6. Cooling settings
Cooling configuration:
- First layer: 0% (fan off)
- General printing: 100% base fan speed
- Bridges and overhangs: 100% fan speed
- Layers under 15 seconds: 100% fan speed
Critical considerations:
- PLA needs maximum cooling for best results
- Full fan speed helps with bridging and overhangs
- The first layer needs no cooling for good adhesion
- Small parts need maximum cooling
7. Troubleshooting
| Problem | Solution |
|---|---|
| Poor layer adhesion |
|
| Warping |
|
| Stringing |
|
| Under-extrusion |
|
| Poor overhangs |
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Please note: These printing parameters are initial recommendations based on our experience. They may need adjustment for your specific 3D printer, environmental conditions and the geometry of the part you are printing. Use them as a starting point and fine-tune them for your needs.
