Scuba Diving Mirror Mount – for 7.5 cm / 3" Blind Spot Mirror
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A practical 3D-printable scuba diving mirror mount for a 7.5 cm (3") blind spot mirror—tested in cold freshwater and off
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Updated at source:
Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Attribution
This is a 3D-printable mount designed to hold a 7.5 cm (3") round blind spot mirror, commonly sold as automotive accessories. They're waterproof, affordable, and easy to find—ideal for adapting to underwater use.
🔍 Example Mirror:
- AliExpress — 7.5 cm blind spot mirror
- Avtozvuk.ua — blind spot mirror 7.5 cm
- Rozetka.com.ua — blind spot mirror 7.5 cm
- Prom.ua — blind spot mirror “мертвая зона”
✅ Why 7.5 cm?
I tried the smaller 5 cm (2") mirrors, but found them too small to be effective underwater. A 10 cm (4") version was too bulky. The 7.5 cm size gives the best balance—large enough to see clearly, yet compact enough to stay out of the way.
✅ Tested in Real Conditions
This mount, printed in PLA, has been in use for over 8 months in cold freshwater dives. It has proven reliable and durable in practice. Saltwater performance is untested so far.
🛠 Assembly Instructions
Print the model (PLA works well)
Glue in the mirror
Use bungees to attach it (holes are integrated into the design). The holes are 5 mm, so 4-5 mm bungee should work.
📏 Features
Designed for 7.5 cm (3") round convex mirrors
Provides a wide field of view
Simple, secure mounting with bungees.
🛑 Note from the Author
This model is not intended for use by citizens or residents of the Russian Federation, nor by individuals who support or share the policies of the Russian government, in protest against the ongoing aggression and war crimes committed by Russia. Please respect this request. Slava Ukraini!As a Ukrainian, I have personally witnessed the devastating consequences of this aggression — including the destruction of cities like Mariupol and the looting of my own home near Kyiv.