Strengths & Benefits
Cost-effective
FDM printers are among the most affordable 3D printers on the market, both in terms of machine price and material cost.
Wide material availability
Supports various thermoplastics like PLA, ABS, PETG, TPU, Nylon, etc., with many colors and properties.
User-friendly
Easy to set up, operate, and maintain. Ideal for hobbyists, students, and prototyping labs.
Good mechanical strength
Especially with materials like ABS and Nylon, FDM parts can be strong and durable.
Scalable
Available in multiple sizes, from desktop models to large industrial systems.
Minimal material waste
Material is deposited only where needed, reducing scrap.
Limitations & Challenges
Lower resolution and detail
Surface finish is rougher, with visible layer lines compared to SLA or SLS prints.
Warping and shrinkage
Common in materials like ABS due to uneven cooling, requiring heated beds or enclosures.
Supports required for overhangs
Complex geometries often need support structures, which add post-processing effort.
Limited material properties
While good for general use, FDM is not ideal for extremely high-performance or heat-resistant parts.
Post-processing needed
Sanding, polishing, or smoothing may be required for a professional finish.
Mechanical anisotropy
Strength varies by direction; parts are weaker between layers (Z-axis).