Coex 3D Gunmetal Gray PLA
Unlock precision printing with Coex 3D Standard PLA Filament - the reliable foundation for your creative vision. Our premium PLA (Polylactic Acid) filament delivers exceptional quality for makers at every level.
Key Features:
- Consistent 1.75mm diameter with tight ±0.03mm tolerance for smooth, jam-free printing
- Manufactured from renewable plant-based resources for eco-conscious creation
- Compatible with all standard FDM/FFF 3D printers
- Low warping and minimal odor during printing
- Vibrant, fade-resistant colors that maintain integrity throughout your prints
Whether you're prototyping a new design, creating functional parts, or bringing artistic concepts to life, Coex 3D Standard PLA delivers reliable performance print after print. Each spool is vacuum-sealed with desiccant to ensure optimal moisture protection and comes with a 100% satisfaction guarantee.
Elevate your 3D printing experience today with Coex 3D Standard PLA - where quality meets creativity.
Technical Printing Guide - COEX PLA
1. Material Notes
- Keep filament dry - store properly and dry before use
- PLA is less hygroscopic than other materials, but proper storage helps maintain quality
- If needed, dry at 55°C for 3 hours or more
- Check for any visible damage before use
2. Basic Parameters
PLA (Polylactic Acid) is a biodegradable polymer known for its ease of printing, good surface quality, and dimensional accuracy. Perfect for decorative parts, prototypes, and general printing needs where mechanical properties are not critical.
| Nozzle | Layer Height | Line Width | Volumetric Speed | 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 |
3. Speed Settings
0.4mm Nozzle (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 (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 (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 (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 |
4. 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 |
5. Temperature Settings
Bed Temperature: 60°C
- Wash the bed often for good adhesion - Use dish soap and rinse thoroughly to remove oils
- Use bed adhesion products if necessary (gluestick, WELD3D)
- Use brim for tall or large prints
- Keep ambient temperature stable
Extruder Temperature: 215-235°C
6. Cooling Settings
Cooling Configuration:
- First Layer: 0% (fan off)
- General Printing: 100% base fan speed
- Bridges and Overhangs: 100% fan speed
- Layers < 15 seconds: 100% fan speed
Critical Considerations:
- PLA requires 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 Guide
| Problem | Solution |
| Poor Layer Adhesion |
1. Increase temperature by 5-10°C 2. Reduce cooling fan speed for first few layers 3. Clean build surface with IPA
|
| Warping |
1. Increase bed temperature to 60°C 2. Add brim (5-10mm) 3. Ensure no drafts in printing area |
| Stringing |
1. Lower temperature by 5°C 2. Increase retraction speed to 45mm/s 3. Adjust retraction distance |
| Under-extrusion |
1. Increase temperature by 5-10°C 2. Clean nozzle or try cold pull 3. Check filament quality |
| Poor Overhangs |
1. Ensure 100% cooling 2. Reduce temperature by 5°C 3. Reduce print speed by 50% |
PLEASE NOTE: These printing parameters are initial recommendations based on our experience. They may need adjustment depending on your specific 3D printer, environmental conditions, and the geometry of the part you are printing. Use these settings as a starting point and fine-tune them according to your specific needs.
Customer Reviews
I am a hobbyist and as such my needs are small. Each time I get a new order, I always get my orders fast and accurate. Additionally, the quality is outstanding. Several years ago, I started ordering from COEX because the filament is Made in the USA. I have NO regrets.
COEX is the only filament we use for our products. Gunmetal Gray is a great mix between Stone and Legion, without the glitter of Metallic Gunmetal.
Great filament. Spool doesn’t run well in AMS and has to be respooled onto plastic spool. Filament pinches on sides often.