Overflow V2

This model is an aquarium overflow designed to efficiently drain excess water to a sump or external filter. The overflow operates on the siphon principle, maintaining a constant flow between the aquarium and the sump without the risk of overflowing.

🔧 Model Features:

• Simple and compact design, easy to print.
• Customizable parameters via the Fusion 360 (.f3d) file to adjust:
  • Main section: 22 mm (modifiable if necessary).
  • Tube: compatible with 16x12 mm diameter tubing.
  • Operating height: 15 mm.
• Recommended material: PETG, known for its safety with fish and water resistance.

📦 Printing Instructions:

Adjusting Dimensions:

In Fusion 360, you can easily modify the model’s parameters (see the Model Parameters image). This allows you to adjust the flow rate or accommodate different tubing sizes.
 

Ensuring Watertightness:
To prevent micro-leaks, I recommend increasing the extrusion multiplier to 1.1 in your slicer (see the Printing Settings image). This is the simplest and most effective method to ensure watertightness.

• Layer Height: Print with a layer height of 0.1 mm to improve interlayer adhesion, which helps achieve better watertightness.
• If the print isn’t watertight on the first attempt, I suggest using 100% concentric infill. This only increases filament usage by about 10 g and significantly improves watertightness, which can be challenging with this design.

🚿 Setup Instructions:

• Full Immersion: Before installation, fully submerge the overflow and rotate it to eliminate any air bubbles.
• Installation: Be careful not to drain the siphon during handling to maintain its efficiency.

Tube Installation:
Insert the tube into its housing. Normally, it will stay in place and be watertight without any adhesive. If not, apply a bit of silicone glue into the opening, then insert the tube.

❗ Need Adjustments?
If you don’t have access to Fusion 360 and need specific dimensions, feel free to leave a comment on the model page, and I will provide the necessary modifications.