hktrdr

I have this weird issue with one of my Oakley Crowbars lenses: There is a gap between the frame of the google and foam that sits between the two lens layers. A little difficult to describe, but check the pictures.
It seems that either the foam is too far in or the outer lens is too big. Has anybody experienced something like this?

Even stranger, I tried swapping lenses with another set of Crowbars and the effect is more pronounced with the white factory text frame than with the plain grey one

Attached Images

	1 white frame.jpg (176.1 KB, 26 views)
	2 white frame.jpg (185.2 KB, 17 views)
	4 grey frame.jpg (172.5 KB, 11 views)
	3 grey frame.jpg (166.3 KB, 13 views)

Donutz

It's not just the foam strip -- looks like there's a gap between the edge of the lens and the goggle. I've got Crowbars and I've never seen that. Is it just the one lens? If so, is the lens a different shape than the others, or is the notch (where the lens clips to the goggle) in a different position on the lens?

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Illegitimi non carborundum

Mountain Days: 30

hktrdr

Yeah, it's the darnedest thing. It seems like there is too much 'overhang' (or maybe a misalignment) of the exterior lens over the interior one or that the recess/channel in the frame is not deep enough. Suspect it is the former, because when I swapped the lens into my other Crowbars (pictures 3 and 4) the issue was still there (although not as pronounced).

But...I took out the lenses from both goggles and they pretty much look the same to me - certainly general shape, location of the notches, etc. are identical. Only had a shitty furniture measuring tape, but the 'overhang' also seems to be pretty close. I guess 1-2 mm can make a big difference for this, though.

Maybe I should try sanding/filing down the bottom edge of the problem lens. Any thoughts on this?

Donutz

Ignoring the foam trim issue for the moment, is the lens sitting properly in the goggle? Sure doesn't look like it in the picture. If it isn't, either the lens is the wrong shape or the goggle is the wrong shape, or the lens notches are in the wrong place which would force the lens to fit badly. If you have multiple lenses and multiple goggles then you can compare them and swap things around to determine the issue. If everything is ok but you still have this issue, then it's operator error. (Can you tell I do pc support? )

Isolate the problem. Then you can determine what to do.

__________________

Illegitimi non carborundum

Mountain Days: 30

hktrdr

Thanks for the input so far - as a 'closet engineer', I like the approach.

So in turn:

1. Pretty sure that the lens is sitting correctly in the frame (small qualification to this in 3. below). I have changed lenses on Crowbars many times, so I am pretty confident that I know what I am doing here.
2. I think I can conclude for certain that there is a problem with the lens, based on the fact that the problem is still there (albeit to a significantly lesser degree) after swapping the lens to a different frame (see picture 4).
3. That said, I think there is a problem with the white frame as well: One of the little nub in the channel of the frame that lock into the notches of the lens appears 'fatter' than the others. It is the one in the bottom right hand corner (when looking through the goggles). While the notch of the lens appears to lock onto the notch ok (it 'pops' in when installing the lens and out when removing it), this could contribute to the phenomenon.

As a next step, I will install the lens from the grey goggles in the white frame, in order to determine whether 3. above is indeed part of the problem. If yes, will try to cut away some of the nub and check whether that improves things.

Unfortunately, that still leaves me with the issue of the lens (2. above). Any ideas?

hktrdr

Sorry, had not addressed the bit in bold previously: In all my Crowbars there is a gap between the inner lens and the sidewall of the frame. However the inner lens does cover the entire 'window' in the 'front wall' of the frame (sorry, a bit difficult to describe - hope this is clear).
The lens in question clearly does not cover the entire 'window' - at the bottom edge I am effectively looking 'past' the inner lens the foam strip (which is pretty much flush with the edge of the inner lens) and only through the outer lens.

Donutz

When I get home, I'm going to have a look at mine.

__________________

Illegitimi non carborundum

Mountain Days: 30