Ultrasonic Cleaning = No more Activate on Wrist Raise?

[wit4breakfast]

No. Let a mechanical engineer reassure you, an ultrasonic cleaner will not cause an o-ring to fail. You're suggesting the vibrations can somehow deform or compress the o-ring enough to create a gap. This just wouldn't happen, the mass of the o-ring is so small that the force created by vibrating it is miniscule.

Plus, it's compressed in its gland... it's not going to turn to jelly and open up gaps...



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Dude, no. O-rings vibrate all the time. Planes, trains, cars, and, um, water pumps! The o-ring in a water pump creates a seal, not a pump. Come on guys you sound as foolish as the OP.

I really don't know what's up with this board. Yesterday investors who didn't seem to know much posing as experts... now you.

I was only a mechanical engineer for a few years before I moved into business...I agree that it's unlikely to be an o-ring failure, but put your ego away and stop pretending to know more than you do.

You don't know what types of adhesives were used. Some adhesives cure into a brittle substances and break down quickly under vibration.

You don't know the resonate frequencies or vibrational modes of the major watch faces.

You don't know how tightly the ring is compressed or the compression ratio. If it isn't adequate...vibration has a way of acting like a lubricant. It could simply slide out of seal (I've seen something similar happen with old head gaskets).

Remember that these seals were designed to meet the IPX7 standard. They aren't particularly robust. Again, I agree that it likely wasn't water seepage that caused the problem... but lets not pretend we know things we don't.

 

[FuzzyLogic13]

It's a watch. Says so right in the name. Doesn't say "E Watch with jazz things inside".

But let's continue on making us all feel better by slamming someone.

Let's all bully them! Come on everyone! Where's your keyboard courage? Attack!

 

[rijc99]

It's a watch. Says so right in the name. Doesn't say "E Watch with jazz things inside".

But let's continue on making us all feel better by slamming someone.

Let's all bully them! Come on everyone! Where's your keyboard courage? Attack!

Does Apple really need to describe it so specifically for people to understand that its a small computing device that doubles as a watch?

Common sense just doesn't exist anymore?

 

[imaginex20]

It's a watch. Says so right in the name. Doesn't say "E Watch with jazz things inside".

But let's continue on making us all feel better by slamming someone.

Let's all bully them! Come on everyone! Where's your keyboard courage? Attack!

Funny your reply is some fuzzy logic

 

[starbot]

Wait, you're calling me the know-it-all?

All I said was that it was not the vibration causing the o-ring compression to fail. I did not say a single thing about adhesives, resonances, etc. Do I think it's possible the vibration caused an accelerometer to fail? Yes, certainly possible, no idea for sure.

I stated I do not think it was the o-ring failing, and nothing more. Something you seem to agree with me on.

Instead of telling others to put their ego in-check, perhaps check yours.

I really don't know what's up with this board. Yesterday investors who didn't seem to know much posing as experts... now you.

I was only a mechanical engineer for a few years before I moved into business...I agree that it's unlikely to be an o-ring failure, but put your ego away and stop pretending to know more than you do.

You don't know what types of adhesives were used. Some adhesives cure into a brittle substances and break down quickly under vibration.

You don't know the resonate frequencies or vibrational modes of the major watch faces.

You don't know how tightly the ring is compressed or the compression ratio. If it isn't adequate...vibration has a way of acting like a lubricant. It could simply slide out of seal (I've seen something similar happen with old head gaskets).

Remember that these seals were designed to meet the IPX7 standard. They aren't particularly robust. Again, I agree that it likely wasn't water seepage that caused the problem... but lets not pretend we know things we don't.

 

[Steve686]

Could 30khz force water to penetrate sensitive areas of the watch?

 

[wit4breakfast]

Wait, you're calling me the know-it-all?

All I said was that it was not the vibration causing the o-ring compression to fail. I did not say a single thing about adhesives, resonances, etc. Do I think it's possible the vibration caused an accelerometer to fail? Yes, certainly possible, no idea for sure.

I stated I do not think it was the o-ring failing, and nothing more. Something you seem to agree with me on.

Instead of telling others to put their ego in-check, perhaps check yours.

Any of those things I listed could cause the o-ring to fail or loosen the compression on the ring... causing failure.

The fact is... vibrations DO cause o-ring failure. It's about the specifics of the system, which you, and everyone outside of apple, know very little about.

And my problem is you didn't tell him "it's possible, but not likely the cause" you said:

No. Let a mechanical engineer reassure you, an ultrasonic cleaner will not cause an o-ring to fail. You're suggesting the vibrations can somehow deform or compress the o-ring enough to create a gap. This just wouldn't happen, the mass of the o-ring is so small that the force created by vibrating it is miniscule.

Plus, it's compressed in its gland... it's not going to turn to jelly and open up gaps...

Dude, no. O-rings vibrate all the time. Planes, trains, cars, and, um, water pumps! The o-ring in a water pump creates a seal, not a pump. Come on guys you sound as foolish as the OP.

You held up your degree and answered him definitively when you're only a sliver less ignorant than he is. Most experienced professionals tend to avoid proclamations like that without intimate knowledge of the system.

Are you an Apple engineer? Do you have a decade or more experience designing leak resistant fixtures that are exposed to high frequencies?

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Could 30khz force water to penetrate sensitive areas of the watch?

The answer is maybe... but it's unlikely a broken seal or water ingress caused this problem.

We also have no clue about the intensity or amplitude of the waveform. I suspect that a watch cleaner is too weak to compromise the seals.

My money would be on plastic deformation or fracturing in the MEMs components. The "symptoms" seem to support this as well.

 

[MartyCan]

Must resist making a comment that will draw the ire of a Mod....

Though I suspect a trolling effort is at work here.

 

[Dillybird]

Next we'll hear someone attempting to clean their watch in the dishwasher trying to multitask cleaning the dishes + watch. And then of course probably blame it on a defect in the watch.

I actually put a watch in a microwave once because it was fogged. The MOMENT I did it I ripped the door back open- and thought- what the HECK was I thinking???

 

[Givmeabrek]

Anyway, you take your regular old $500 Citizen to a watch shop and ask for a cleaning, and guess what they'll do? Yes, they will shove it in an ultra sonic cleaner and basically do nothing else (well, the every day mall watch shops anyway.)

Sample: http://www.amazon.com/Magnasonic-Pr...5325&sr=8-3&keywords=ultrasonic+watch+cleaner

Even this device has a support to keep the watch itself out of the water. There is no way you would want to submerge it in an ultrasonic cleaner.