3D Printing Materials
Understanding each material helps you make the right choice for your application. Compare properties, use cases, and limitations.
Material Comparison
Side-by-side properties for all four FDM materials.
| Property | PLA+ | ABS | PETG | PETG-CF |
|---|---|---|---|---|
| Print Temp | 200–220°C | 230–250°C | 230–245°C | 240–260°C |
| Heat Deflection | ~60°C | ~98°C | ~80°C | ~85°C |
| Tensile Strength | ~60 MPa | ~40 MPa | ~50 MPa | ~70 MPa |
| Shrinkage | Minimal | High | Very Low | Negligible |
| Surface Finish | Excellent | Good | Good (glossy) | Matte (premium) |
| Print Difficulty | Easy | Moderate | Easy | Moderate |
PLA+
Enhanced PLA for superior finish and rigidity
PLA+ (enhanced polylactic acid) is derived from renewable resources and is the easiest material to print. It produces excellent surface quality and dimensional accuracy, making it the top choice for detailed prototypes and presentation models.
Use Cases
- Detailed prototypes
- Scale models
- Consumer product mockups
- Exhibition parts
- Low-stress assemblies
Limitations
- Not suitable for high-temperature environments
- Lower impact resistance than ABS
ABS
Industrial-standard for heat resistance and toughness
ABS (acrylonitrile butadiene styrene) is the material used in LEGO bricks and automotive dashboards. It offers superior heat resistance and can be acetone-smoothed to near-injection-mold surface quality. Requires an enclosed print environment.
Use Cases
- Electronic enclosures
- Automotive components
- Heat-exposed parts
- Parts requiring acetone smoothing
- Impact-resistant housings
Limitations
- Requires enclosed printer to prevent warping
- Emits fumes — requires ventilation
PETG
Professional structural balance — easy to print
PETG (polyethylene terephthalate glycol) combines the ease of PLA+ with the toughness and chemical resistance of ABS. It is the go-to material for functional mechanical parts that must survive daily use, humidity, or mild chemical exposure.
Use Cases
- Mechanical parts
- Waterproof containers
- Outdoor fixtures
- Medical prototypes
- Chemical-resistant parts
Limitations
- Slight stringing if print settings are not optimized
- Softer surface than ABS
PETG-CF
Carbon fiber-reinforced for maximum rigidity
PETG-CF (carbon fiber reinforced PETG) is our premium engineering material. Chopped carbon fibers increase stiffness by 2–3× compared to standard PETG while reducing weight. Delivers a professional matte-black finish with zero warping, even on large parts.
Use Cases
- Drone frames
- Robotics components
- Structural brackets
- Jigs and fixtures
- Load-bearing parts
Limitations
- Available in black only
- Abrasive to standard nozzles — requires hardened steel
Design Guidelines
Follow these principles to get the best results from our FDM printing service.
Wall Thickness
Minimum recommended wall thickness is 1.2mm (3 perimeters at 0.4mm nozzle). Thinner walls may print but can be structurally weak.
Overhangs
Overhangs beyond 45° require support structures. Design parts with self-supporting angles where possible to reduce support material costs.
Holes and Tolerances
For holes that will receive bolts or press-fit inserts, design 0.2–0.3mm oversized to account for FDM shrinkage. Vertical holes print more accurately than horizontal ones.
Layer Orientation
FDM parts are strongest when the load is applied perpendicular to layer lines. Consider the print orientation when designing for structural strength.
In-Depth Guide
PLA vs ABS vs PETG: Complete 3D Printing Material Guide
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