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Picture of Diving Mask With Custom Add-on Lenses (V2.0) made using Photogrammetry
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After having used my custom-made diving mask frame with the add-on lenses, I started finding that there was room for further improvements. These added features would facilitate the construction and make the overall use of the add-on lens frame more convenient to use while diving.

Thankfully, in recent times there have been great advancements made in the field of photogrammetry which have made this technology accessible to virtually anyone with a smartphone. Add to this the reduction in the costs of 3D printing and the combination of the two has offered the right opportunity to take my custom-made diving mask frame with the add-on lenses to the next level.

In the following steps I use some of the latest technologies that are now available to all to remix and transform the first version into a superior and more pleasing result!

The link to the first version: https://www.instructables.com/id/Diving-Mask-With-Add-on-Lenses/

Step 1: Remixing Version 1.0 to 2.0

Picture of Remixing Version 1.0 to 2.0
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In the previous version (1.0) I had found the following difficulties while making and also when using the mask frame.

Shortcomings in V 1.0

Construction difficulties:

  • The 2D, flat, planar surface of the acrylic sheet provides limited possibilities to add more features and elements to it.
  • The mask frame supports (Step 16) are designed by taking visual measurements and are therefore inaccurate. Because of these inaccuracies the shape of the supports don't match the shape of the mask and don't get glued properly. I had to re-glue the supports a few times before they got firmly stuck.
  • Aligning all of the 4 frame supports on the mask which has irregularly shaped surfaces was challenging.
  • Because the frame supports are permanently glued to the mask, the mask gets permanently altered and can't be used as a "regular mask".

Utilization difficulties:

  • Moving and sliding the lenses up and down the slot in the frame requires the use of both hands - one hand to loosen the butterfly nut and the other to hold the lens frame.

Improvements in V 2.0

Construction improvements:

  • By designing an add-on mask frame that closely matches the shape of the diving mask, we get a 3D shape which offers us many more surfaces and areas to add features and elements to the frame.
  • An add-on mask frame that closely fits the diving mask does not need to be permanently fixed or glued to the mask as it's holds itself in place.
  • The add-on mask frame can be added and removed without making any changes to the diving mask.
  • The availability of larger areas on the mask frame, on the sides and the back of the frame, provides the space to add elements to fasten the mask frame to the diving mask and also add a mechanism to slide the lenses up and down the face of the mask.

Improved usage:

  • A mechanism to slide the lenses up and down the face of the mask and with the use of just one hand has been added making the adjustment of the lenses extremely convenient.
These are scary too! Nice.
Thanks :-D
Yeah they look a bit like the night vision glasses of the marines.
Quite a clever workflow! This is a wonderful instructable and is a wonderful resource for anyone wanting to model from complex forms for reverse engineering.
Thanks! :-)
The easy access to photogrammetry has really made reverse engineering of complex forms much more simple now.
AndréC16112 days ago
Congratulations, that is a very good guide. I have -5 myopia and got inspired by your previous guide and tried to have my own solution by 3d printing a frame to be fixed in front of the mask to hold correction lenses almost the size of the masks lens to improve my field of view but I didn't use photogrammetry and the frame wasn't a close fit.

That solution didn't work so well for me so I abandoned the idea of putting the lens outside the mask and had a pair of cheap lenses ($ 50) made to my prescription to be glued to the inside of the mask. The trick was asking the manufacturer to make the outer surface flat so that it rest perfeclty inside the mask's lens. A drop of gelatinous superglue and a clamp to hold it together to let the glue dry.

That made the trick and now i can see prefectly underwater.
Filio Schiavina (author)  AndréC1618 days ago
Thank you for the appreciation. I am glad to find that you also tried out this solution.
I must admit that I haven't really tried this solution with minus (-) power lenses because I use plus (+) power lenses.
Moreover, with minus power lenses you would not really need the lenses to be movable, as you would use them continuously, in the same position during all of the dive.
Whereas with plus power lenses, it is convenient to get the lenses out of the way sometimes or to move the lenses in the most convenient position; for example when taking photos it is convenient to have the lenses right in front of the eye so that one can see the camera clearly. In such cases, with plus power lenses, gluing them is inconvenient. I guess that we each have to find solution that is most suitable :-)
DyumanA19 days ago
Fantastic idea! Great detailed documentation and a fabulous introduction into photogrammetry! This is just what im looking for. Keep up the great work :)
Filio Schiavina (author)  DyumanA19 days ago
Thanks for the appreciation! :-)
ShambhaviD122 days ago
Great job with extremely well detailed images that give a superb step by step guide! Wonderful project and overall this mask looks to be a brilliant addition to the world of diving. Voted!
Filio Schiavina (author)  ShambhaviD119 days ago
Thank you for the appreciation and especially the generous vote! It has made my diving experience much more pleasant and I hope that will help others too.
Craftcorner22 days ago
Oh wow this is fantastic! Great idea and execution!
Filio Schiavina (author)  Craftcorner19 days ago
Thank you for your appreciation :-)