Design Guides

Fused Deposition Modeling (FDM) systems and related technologies are the most accessible and widely used form of 3D printing. FDM machines build parts layer-by-layer from the bottom up by heating and extruding thermoplastic filament. The production-grade thermoplastic material used is suitable for detailed functional prototypes, durable manufacturing tools & low-volume manufacturing parts.

Different industries require different solutions to maximize the efficiency of their objective. FDM 3D printing technology builds durable and functional prototypes that can withstand rigorous testing.

FDM Design Guides

When designing for FDM, consider the following recommendations to improve the overall quality and finish of your product.
Build Volume: 750x750x750mm
Tips & Tricks:
Reduce weight to save costs
Add escape holes for resin in closed sections
Fillet walls and pins for extra strength
Low cost per part
Large selection of materials
Less environmental pollution
Post-processing is relatively simple
Chemical resistance
Parts of warping deformation is small
Support material required
The molding time is long
The surface is well striated
Small strength in the direction
perpendicular to the section
Surface Finishes:
Spray paint
Sand blasting
ABS like materials
Fast build times
Flexible material
Carbon Fiber

Tolerances: +/- 0.3mm is standard.

Walls: FDM can manage very thin walls but QSY do not recommend anything under 0.8 – 1mm.

Overhangs: Not a problem for SLA due to the supports. Unsupported overhangs will warp.

Holes & Slots: We recommend a minimum of 0.5mm but the larger the better especially as wall thickness or depth increases.

Text & Engraved Details: Are at risk of closing up if not designed with 0.5mm > minimum height.

Pins & Embossed Features: Pins ≥ 0.8mm but even then risk breaking. Embossed features ≥ 0.3mm.

Mating Parts: Minimum 0.5mm gap between axel and bore or other moving parts.