Digital Forced Air Annealing Oven

Unlock the Full Potential of Your 3D Prints

The FAAO Forced Air Annealing Ovens are professional-grade thermal processing solutions designed to bring industrial-standard finishing to your 3D printing workflow. While traditional ovens suffer from hot spots and uneven heating, the FAAO-013L oven utilises a high-precision microcontroller and forced-air circulation to deliver the uniform environment essential for the delicate process of annealing 3D printed parts.

Why Anneal Your 3D Prints?

3D printing inherently creates internal stresses and micro-voids as layers cool at different rates. Annealing, the process of heating a part to a specific temperature and cooling it slowly, realigns the polymer chains to provide:

• Enhanced Mechanical Strength: Significantly increases tensile strength and impact resistance.

• Superior Thermal Stability: Raises the Heat Deflection Temperature (HDT), allowing parts to withstand higher operating environments without deforming.

• Dimensional Accuracy: Relieves internal stresses that lead to long-term warping or cracking, ensuring your parts stay true to their original CAD design.

Engineered for Precision & Reliability

• Uniform Heat Distribution: The forced-air convection system with gentle downward flow along the chamber wall provides less disruption to parts and ensures consistent temperatures throughout the chamber, preventing the "localised melting" often seen in standard toaster ovens.

• Advanced PID Control: A built-in microcontroller provides precise temperature accuracy up to 200°C or 250°C, critical for materials like PLA (annealing at ~50-60°C), ABS (annealing at ~80-90°C) and High Temp Resins (annealing at ~90-160°C).

• Safety First: Features an adjustable temperature alarm and built-in overheat protection that automatically cuts power if temperatures exceed safe limits or a sensor fails.

• Observation Window: The toughened double-glazed window allows you to monitor your parts for any signs of softening or deformation without opening the door and losing heat.

Technical Specifications

What’s in the Box?

• Digital Forced Air Anneal Oven

• 2x Stainless Steel Wire Shelves

• Power Cord

• User Manual

• One-Year Manufacturer Warranty

Ready to take your 3D printing to the next level? Whether you are working with high-performance engineering filaments or looking to strengthen consumer-grade PLA, professional annealing ovens provide the controlled thermal environment needed for expert results.

Annealing is a critical post-processing step for functional 3D prints, but it requires precision. If the temperature is too low, the internal stresses remain; if it is too high, the part may warp or melt.

The following table provides general guidelines for common materials when using a forced-air convection oven. Please note this is just a guideline and each material brand differs so find the right temperature and time which works for your own filament and printed geometry. 

3D Print Annealing Guide

Best Practices for the FAAO Ovens

• The "Slow Cool" Rule: Never remove parts immediately after the annealing time. Turn the oven off and let the part cool to room temperature inside the chamber. Alternatively, for more technical materials ramp the cool down using the optional ramp controller. Rapid cooling can re-introduce the very stresses you are trying to remove.

• Support Material: For complex geometries or materials with low Glass Transition temperatures (like PLA), keep the supports on during annealing. This helps the part maintain its dimensional integrity while the polymer chains are mobile.

• Ramping (Optional but Recommended): For critical parts, use a "stepped" approach. Heat the oven to 20°C below your target for 30 minutes before moving to the final annealing temperature. This prevents "thermal shock" to the outer layers of the print. For ramping control you need to add 28 Segment Ramp LCD Controller

• Infill Density: Parts with 100% infill are far less likely to shrink or deform during annealing compared to low-infill parts (e.g., 15-20%), as the internal structure provides more mechanical support.

Note on Shrinkage: Most polymers will shrink slightly (typically 0.5% to 2%) during annealing as the material densifies. If you are printing tight-tolerance mechanical parts, you may need to scale your model by a small percentage in your slicer to compensate.