privatebydesign said:bwud said:privatebydesign said:bwud said:privatebydesign said:I do agree that in the grand scheme of quality engineering glue might have its place (something to fix the tea mug of the engineer should he break it maybe?) .
Or to attach major pieces of structure in a multi-billion dollar spacecraft, for example.
Or fenders (wings) on cars, ever tried removing them to do a simple fender replacement?
The point is glue has its pros and cons, the massive con is that it is, by design, not meant to be taken apart, which doesn't help if you are in the service business as well as the sales business.
Note, your parenthetical came across as suggesting glue is only good for unimportant simple fixes, which is demonstrably false.
I agree with your stated point above, although the difficulty in disassembling glued joints is only a massive con to a service organization if disassembling a glued joint is necessary to perform service. Perhaps glued parts are intended to be discarded and replaced as a set, in which case it's of no consequence to the service provider.
No, glue is also a massive con/fail if it wasn't engineered right, like the glue 'solution' in the Sony 24-70 f/4 ZA OSS, if the glue fails then it is bad design as there really is no excuse for it.
The lens in this article (https://www.lensrentals.com/blog/2015/04/tearing-down-the-sony-24-70-f4-za-oss-vario-tessar/) was effectively written off because it was considered economically un-repairable, the fault? The one blob of glue failed. That is an engineering fail.
Didn't Roger's guy repair that lens?
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