an update on my ever improving design: i was having a small problem with bubbles collecting between the lense of the goggle and the optical lense i had mounted on the outside of the goggle lense. didnt know whether to make more holes in the black plastic 'pipe' i had mounted the optical lenses inside, which would allow a freer flow of water, or to totaly seel it up, perminently trapping water inside.
what i did instead was remove the pipe till i had a normal pair of swimming goggles again, the with a red hot screwdriver i melted a nice neat hole in the front of each lense, of the diameter of the plastic pipe. i then wedged the pipes into the holes, securing it with a bit of superglue and plumbers putty. a new photo wont show much cause they look much the same as before, except they are now missing the plastic lense that previously came between the eye and the glass optical lense. the optical lense can now be cleaned from both sides. and not having to look through two lenses seems like it may even have improved the optical characteristics slightly.
bevan
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