GoPro Dome Port Housing – Over-Under Shot Dome

📝 Model Description

This project is a DIY 3D printed dome port housing designed for GoPro cameras, ideal for underwater filming, split over-under shots, and creative wide-angle photography.

The dome uses a transparent spherical photo ornament (bi-part sphere) as the optical dome, combined with a custom 3D printed frame that securely holds the sphere and attaches directly to the GoPro housing.

The design focuses on:

• Compact and lightweight construction
• Easy assembly with common materials
• Improved underwater image quality by reducing refraction
• A low-cost alternative to commercial dome ports

This model is perfect for makers, divers, snorkelers, travelers, and content creators who want to experiment with underwater and half-submerged shots using a GoPro.

⚠️ Note: This is a DIY solution and not pressure-rated for deep diving. Recommended for surface, snorkeling, and shallow water use.

⭐ Key Features

• Compatible with GoPro waterproof housing
• Uses a clear bi-part spherical photo ornament as the dome
• Secure mounting using Velcro strap system
• Sealed with silicone for water resistance
• Lightweight, modular, and easy to customize
• Ideal for over/under (split) shots and underwater footage

🛠️ Materials Required

• 3D printed dome frame (this model)
• Transparent bi-part spherical photo ornament
  🔗 https://www.mercadolivre.com.br/up/MLBU1749033343?pdp_filters=item_id:MLB3864830589#origin=share&sid=share&wid=MLB3864830589&action=whatsapp
• Velcro strap (hook & loop tape)
  🔗 https://pt.aliexpress.com/item/1005006306668917.html?spm=a2g0o.order_list.order_list_main.40.699ccaa4IH9ijB&gatewayAdapt=glo2bra
• Neutral cure silicone sealant (transparent recommended)
• GoPro waterproof housing
• Optional: tripod mount / ball mount adapter

📘 Assembly Manual (Based on Photos)

Step 1 – Prepare the Printed Parts

• Print the dome frame using PETG or ABS for better moisture resistance.
• Clean and dry all printed parts.
• Test-fit the spherical ornament halves inside the frame.

Step 2 – Install the Dome Sphere

• Insert the bi-part spherical photo ornament into the printed frame.
• Ensure the transparent surface is clean and free of dust or fingerprints.
• Align the seam of the sphere evenly inside the frame.

Step 3 – Sealing

• Apply transparent silicone sealant along the contact area between the sphere and the printed frame.
• Smooth the silicone to ensure full coverage and avoid gaps.
• Let it cure fully according to the silicone manufacturer’s instructions (usually 24 hours).

Step 4 – Mounting to the GoPro

• Attach the dome assembly to the GoPro housing using a Velcro strap.
• The design leaves space to route the Velcro securely around the housing.
• Tighten firmly but avoid excessive pressure.

Step 5 – Final Check

• Perform a leak test.

• Check for bubbles or water ingress.

   

🎥 Usage Tips

• Best results are achieved in clear water and good lighting.
• Keep the dome clean to avoid distortion or glare.
• Ideal for surface shots, snorkeling, pools, lakes, and rivers.
• Rinse with fresh water after saltwater use.

⚠️ Disclaimer

This model is a DIY, non-certified housing.
Use at your own risk. Not recommended for deep diving or high-pressure environments.

🔧 Customization & Source Files

To make this project as flexible and maker-friendly as possible, I’m providing both STL and SolidWorks (.SLDPRT) source files.

This allows anyone to:

• Easily customize dimensions
• Adapt the design to other GoPro models or housings
• Modify the dome fit for different spherical ornaments
• Improve or remix the mounting system

Whether you just want to print and use it, or dive deeper and fully customize the model, this project gives you complete freedom.