Why are Apple Vision Pros Breaking?
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- เผยแพร่เมื่อ 20 ก.ย. 2024
- In this clip, Marques, Andrew, and Miles talk about #Crackgate!
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It is so surreal to me that a $3,499 can be that fragile in such a goofy way
JerryRigEverything did excellent testing for the device, it is ridiculously horrible by the design and engineering standpoint.
It's a FEATURE.
Actually EU is asking Apple to pay $2 billions fine, so they’re breaking your vision pros on purpose to force you buy new ones to pay their fines 😢
@@paristothe engineering is “ridiculously horrible”? I would love to see your expert design for putting all of that hardware into such a small form factor that looks more sleek. Feel free to blow all of us away.
@@MP-vc4nu This is such a silly idea ...
I love the color coordination of the pink macbook+salmon t-shirt next to the silver macbook+white t-shirt
I thought I was the only one noticing it. Love it ❤
and mark + black mac
Good eye❤
salmon tshirt , pink macbook, brown dude!
They just discreetly added a brother in there huh
I think I know what’s happening. You have two processors in the front of the headset and they generate heat when in use. That heat is causing thermal expansion of the glass and then the aluminum has a bit of flex when putting it on and off and over time….crack. Apple should have ditched glass and aluminum all together and used plastic. It would cost cheaper and made the headset lighter.
The front is plastic, not glass.
There is a glass mixed under it.
@@paristothere is glass over it as well. Duh
@@paristo If it was all platic, it wouldn't have broken like this.
It is because of the glass
Apple needs to work with or have Pyrex for glass to work under high heat.
You would think it would have cracked at the engineering sample. And...
If the air intake is on the bottom, isn't that precisely why the crack might start there?
The rest of the device gradually heats up, but the area directly around the air intake would be colder and thus not expand at the same rate.
I think you cracked the case
@@zaitchnkolior6614 Nice, lol
that is EXACTLY what I was thinking! 🤓👍
imagine working 6 years on a product and failing the basics... so, it's not a failure
Yea bro I think ur actually right
It's almost as if Glass in the front was a stupid idea
It looks "cool" so fans can buy it and tell everyone how its ridiculous price is totally justified
@@3dNikitathe glass has a pollimer layer above it. So it is very scratch prone. What was the point of using glas if that was the case? Stupid wasted potential.
@@vidal9747 Apple should have made the front from a hardened surface than level 2 only. It would have withstanded scratches better. But the shape alone is a problem, what is result of bad designing.
Apple should have at least made the front easily pop out with a two button presses or something, and sell cheaply the front piece for like $ 40-50. This way user could swap it when enough damaged.
Just better, forget the fake eyes and make the front a actual proper material. But then people would understand that Apple Vision is just expensive AR product at the moment.
if it was glass... plastic, and very thin layer of glass in the middle. If it was real glass, one piece, all over, it would be way more tough
@@unloveableandre is laminated glass or is your car windshield not glass?
Its stupid that the plastic Layer is on the outside though
11:34 "this looks gross to hold" 😂
That's what she said?😬
A little prissy for him to say
Temperature differential on a glass plastic screen sandwich that is under curvature stress. Just like on car windshield and you get a rock chip near the defroster vents. Your windshield will crack as soon as you turn on the defroster on a cold winter's day. Top of the windshield is freezing cold, but the bottom is warmed.
Yeh that is why ppl should not use hot liquid to defrost windscreens, the water can be warm but it is the temp differential that will cause stress & for it to crack or even shatter.
If the glass layer wasn't properly annealed after it was formed, it would eventually crack.
Crazy to see how MKBHD is referencing the Gizmodo article which is referencing my cracked AVP lol
Do you know how did your AVP crack?
Was it in use?
What was the temperature?
Were you sweating?
Was it while transporting it?
Yeah.
Crazy how he gets almost 90K in a random video (this one).
While you get 29 likes pointing it out...
I forgot: lol?
congrats your story make him several thousand dollars which cost you over $3500 :(
@@tapetwo7115 I got a replacement for free.
@@paristo room temp and no for everything else.
Might be because there is a piece of metal between both sides of the glass(the nose bridge) and metal expands when heated, so it makes sense that it would expand pushing both sides apart causing it to crack right down the middle
Most logical answer. Would think Apple would have tested the product. There is no way this did not happen during testing. May be on purpose for more marketing.
Well, it could just be heat from a standby bug while the vents are covered and in the case, I think the major part everyone is ignoring is that (if you’re using the solo knit band) do you have to have adequate pressure to keep it on your face. That is coming from both sides. Think about where that pressure might be pulling the glass back and where that might create a weak point… right in the center of the front glsss
Maybe the cracking is caused by the different thermal expansion of glass and aluminium. That’s why concrete is used only with steel because they have the same thermal expansion coefficient.
Apple's response is : You are using it wrong
Quite possibly temperature, they are combining metal and plastic like that, just carrying that outside in freezing conditions and coming in and putting it on would be huge temperature gradient
Can you over tighten the headband?
No it reaches a maximum tightness
@@crimsondragon95 but if you have a narrow face there will be more pressure in the center
i bet the crack is caused by over tightening while wearing
Listening to any defense of this is gross.
Right. Apple is a huge company. I know they’ve got to have plenty of engineers and designers who must’ve saw this coming.
Apple products are beyond criticism for apple fanboys.
Don’t forget about the cracked MacBook Air screens. That Apple ignores.
APPLE going to say it's y'all fault 😂😂
I’m curious to hear if people who have the crack use the original headset. The original headset pulls very hard on both sides. I wonder if that along with the heat others are mentioning could be enough to cause the crack. The secondary headset distributes the weight so that the back strap doesn’t have to be as tight. Just a thought
Secondary and original?
@@paristo same, wat? 0.o
@@paristo It comes with two different types of head straps. One that is just around the back of the head, which is the big elastic "cool looking" one. Then there's another head strap that has one that goes over top of the head. That one distributes the weight more evenly and holds it up more gently, whereas the "original" back of the head one relies almost entirely on pulling the device against your face. It pulls from the sides, while the middle of the device presses against your nose and forehead. This is gonna bend the device against your face. Crack!
Woahh they got another brother✊🏾
Started from the bottom was said so many times that I'm glad someone said "now it's here" or else I was not going to be able to sleep tonight.
I was trying to get what they meant by that joke and now I get it lol. That’s a good one
First gen product baby!
3500$ first gen only in apple there are years of vr glasses in production with no such issues.
Stubborn engineers that are too prideful to look at what the other VR manufacturers have been doing for the past 15 years. It's embarrassing for Apple.
@@gab1159 Apple banned developers from using Chat GPT so they have a sense of uniqueness with their products
Says the gut who can't afford it 🤣🤣
Apple probably did it on purpose. If they charge hundreds of dollars to replace it then they did it on purpose.
just use polarized glasses to look for tension
ActionLab?
Wait a minute... A brother in there with y'all now? Shiiiiid lemme start watching again.
Diversity hiring lol 😂
In Australia that is an easy replacement under consumer law. It seems like the layer of glass which is covered by a plastic film, was mad of 2 pieces. Maybe this is why it needed a plastic film on the outside (unlike Apple). It seems like the join is cracking.
7:45 The nose arch is probably causing a higher stress concentration in that area. Wine bottle divots and wine glass rims are continuous symmetric shapes which add strength because of their continuity, which distributes stress uniformly. Notches are a different story--they tend to produce stress concentrations.
My guess is that this is a result of coefficient of thermal expansion mismatch between the aluminum and glass, combined with heat. Glass and aluminum do not expand the same amount for a given change in temperature, and this is a fairly fragile contoured piece of glass bonded to an aluminum frame. This is a much worse scenario than a phone screen, because a phone screen is a flat piece of glass and the thermal expansion produces in-plane stresses. The shape of the VP, however, will produce tensile and bending stresses in the glass as that expansion/contraction happens.
Wait is there no warranty in the US? In Germany you have 1 year of free warranty. Also in the first 6 months apple would even need to prove that the customer damaged it if they didnt want to replace it for free.
Edit: Its actually 2 years in the EU. Not just 1 year
Wasnt there a two year mandatory manufacturer guarantee?
Eine Begründung oder Rechtfertigung durch den Verbraucher ist nicht erforderlich. Laut EU-Recht hat der Verbraucher außerdem Anspruch auf eine mindestens 2-jährige Gewährleistung (gesetzliche Garantie), die ihn schützt, wenn Waren fehlerhaft sind oder nicht die in der Werbung beschriebenen Eigenschaften aufweisen.
In NZ a product must last a “reasonable” amount of time. You can often argue that you’d expect products like this to last atleast 3-5 years
That’s why they aren’t selling it in Europe 😂
There is warranty act here in the USA that gives consumers a lot of protections however you would have to fight apple lawyers in court to make them honor it. The warranty act also makes warranty void if removed stickers illegal. The onus is on the company to prove that you taking it apart caused the damage. This crack looks like a hardware defect. Probably would be covered.
I'm not a lawyer and I'm most certainly not your lawyer if you choose to follow this advice.
The nose curve is a very tight radius so it suffer from stress concentration. The sharper the inside radius of a material, the worse the stress concentration and fatigueing (thermal expansion cycles are a great source of these) over time will cause cracking and breaking. This issue is precisely why airplane windows have very rounded corners and not as square as in the past (de Havilland Comet distruxtions in the 1950s).
I learned the difference between shepherds pie and cottage pie from a Gordon Ramsay Kitchen Nightmares episode 😂
Cottage sounds more cheesy
Same, fam. Same.👊
I don't think Marques has ever seen a $15 hard plastic case if he can't comprehend a cheap phone case looking good.
It's cuz he's out of touch with reality
My question is: Do you think this is serious enough that TH-camrs and other promoters should send the word to the public, "Don't buy Vision Pro until Apple addresses this" to force Apple to make a move, or at least address those with existing cracks who might be falling through the gaps, or don't qualify for exchange/refund.
no youtuber is asking anyone to buy these in the first place 😂
Absolutely agree with you
If you tubers can rave about it (knowing the cost and the limited real world appeal), I think it's unrealistic to expect them to be honest about a crack in it.
Nah who gives a shit about anyone that can drop $3700 on useless shit
99% of TH-camrs who have this device were gifted the devices from Apple so I *highly* doubt they will say a single bad word about it!
Most of the broken ones I've seen have been from people that put the Vision Pro in the case while they're charging the battery. It makes sense to me that they just don't shut down all the way, get too hot, and the glass cracks at its weakest and most complex point. It's also possible the glass is not perfectly shaped for the frame and just has too much stress in the center, made worse by the fact that it's only adhered to the edges and nothing else.
Doesn't make sense to me at all. If the headset if off your head it shouldn't be running enough to generate that kind of heat.
Correct me if I'm wrong, but didn't they say the Vision Pro has no battery?
also the vision Pro is not glass at the front
@@deekyevans5235it’s glass LOL..laminated with plastic
Isn’t the battery detachable? And why would they put it in the case while charging when they can detach the cable?🤔
the crack coming majority from the bottom and the air intake there as well cooling that lower half of the glass. the top of the glass is warm and that can cause extra stress on the bridge of the nose. add in what yall said about the lidar could that be heating the glass in a very small space while surrounded by air cooled glass. they would need stuff like those little black dots around your cars windshield to dissipate the differences in temp across the glass.
It makes sense it starts from the bottom . The top gets warm from the exhaust heat and expands slowly. The colder bottom, at the "pinch point" no less, gets stressed from the expansion at the top, until the glass fails.
I wonder if one of the headbands are pulling the glass more than was intended. Are the cracks showing up more on one headband type than the other? Maybe the over the top of the head headband was rushed before testing could reveal this issue. Maybe the amount people are tightening the headband is too much?
Thats what I was thinking too. Seems like people overtighten the strap due to the weight causing stress right in the middle. That plus heat from extended use seems plausible.
@@predatron9907 also if you have a narrow face, more pressure in the center would give more room for it to bend. It's almost like brittle glass and soft metal was a dumb combination that only "looks cool" 😑
My guess is that the crack is caused from over tightening the head strap. The weight makes it uncomfortable in an attempt to find comfort you over tighten the strap. The thinnest part of the frame where it will bend from this lines up with where cracks at happening.
I loved how knowledgeable Ellis was on the glass stuff.
All of his conjecture was wrong tho? Unless this comment was sarcastic and it went over my head lol
@@wolfcryjr yeah he got the glass part wrong
Jerry showed us that it's basically plastic. We hoped that it wouldn't just crack because of that but this is just weird.
Few people are having this issue. And I really question what in the world they are doing to make it happen.
Not sure if Marques is out of touch on phone cases, or it's an iPhone thing... $15 is like the sweet spot for a simple black or solid color, rubber protective case that's fine to hold, good button feel, and won't degrade quickly. Got one right next to me that I used actively for two years, and has been on the phone through various use for another three. Ringke on an Xperia xz2.
8:00 WRONG, here's how it works: Imagine a circle, it easier to break out from inside the circle but harder to break into the circle. That's how curved reinforcement work and that's why that middle part of vision pro is structural weakness
What you are saying is true for pressure containment. Inside force causes tension, outside force causes compression. However, a flat plane is significantly less stiff than a curved plan, and significantly more susceptible to bending that results in breakage.
the aluminum expanding slightly and cracking the glass makes the most sense to me. and it might not even be the software turning off properly. i could just be the temperature of where the user is versus where the vision pro was manufactured.
In Canada the spigen zero one case was only $20 and it’s amazing. Strongest MagSafe and protects the phone pretty good.
Good for you guys, the video that other paid shill reviewers (like iJustine) will never put out there!
Just remember, the front "glass" scratches at a level 2 and 3. Where as real glass scratches at 6 and 7
When things like this happen, it’s such huge news that I’m honestly dubious about the source.
Also Aluminum is a huge heatsink and right next to the glass then setting it down how ever softly will always put some stress right where we are seeing the cracks. Glass was just a bad idea in this instance of material combination.
Maybe the crazy shape of it required them to build a glass in two parts and then they used some sort of epoxy to put the two halves together and the epoxy is giving out
I've always used a Tech21 case with my iPhone and they aged great. The only issue I had was an old one that kind of started to decompose in a drawer, but that was on my old iPhone 5C, so after like 9 years of iPhone protection I don't blame it for giving up.
Why is this relevant to the topic in the slightest regard ?
the new guy looks like marques brownlee at home
I guess that the crack has to do with the stress imposed on the headset while people tighten the grip against their face. Maybe this caused the headset to bend on either side against the vertical line between their forehead and their nose.
I own one, and from grabbing it off my face and not being perfect about doing it from the middle, I bet it’s from grabbing it on the side and it twisting from the bottom up while taking it off.
‘Your face is holding it wrong’ -Apple 😄😂
I feel like in 2024, it's refreshing to see something as straight as that break line.
Could the crack be produced by over-tightening the original strap while wearing the headset?
lol marques just casually saying that he and his company no longer use 7k dollars worth of headsets for anything must be nice.
He runs a company that reviews tech though? Tax write off. significantly reducing his taxable income, yes, he still has to pay a portion of the product cost, but it A) earned him money B) constitutes savings on his tax bill.
7k for equipment is a very small expense for a channel of his size. Do you not realise how much revenue big TH-cam channels generate? Did you not notice how many people he employs or something? LTT employs like dozens of people. That must be nice, I guess?
They either write-off as expense if purchased, or return to Apple if “loaned” for review purposes. Saw these at an Apple Store and just can’t imagine widescale use or interest. I do think for disabled market this could be very helpful with some tweaks.
He did what was effectively a 2 part video, the first showing off a motion control camera rig that even movie studios only rent because it's so expensive, and the second was a studio tour a bit later including his one that he bought after that video. 7 grand worth of consumer electronics is a drop in the bucket, particularly considering that his business is about consumer electronics
Add up all the time he's spent making videos and you'll see all the work he's put into his company. It's not as if anything was handed to him without him working for it.
Looks like it's probably not a single piece of glass, but two pieces fused together. Regular thermal expansion and compression might be stressing the joint where the pieces are fused, and causing it to fail, exposing where the two pieces were joined.
JerryRigEverything show how fragile those fake glass are.
He said it was real glass with a plastic layer on it.
What are you talking about?
Looks like a temp or stress crack where the center moldings is.. The center is not as wide, so any stress gets put dead center .. This is a design issue with the shaping of the glass.
Bet the crack is from the stress of the thing pushing on their face
I commented in a Reddit thread...if you read through the manual, theres some conflict... in one part it says it's OK to leave the battery cord connected to the headset when you're not using it. And another part, it says it generates heat and not to block the vents. And another part it says to make sure the unit is covered and protected basically when not in use. And other things like this that I saw. I don't think they realize that with the power cord connected, it does background activities, maybe like iCloud sync, etc. With the cover on its blocking the vents. so when you leave the battery cord hooked up to it and it's doing background events while you're not using it, and the covers on and the vents are choked… There's your heat buildup and your glass crack. ( I'm not even talking about the battery hooked to the headset AND charging the battery either... although if some people are doing that with a power brick inside the case, there's even more heat for you.)
Nobody care about this vr headset to be honest
I care more about it's potential. An android competitor would be awesome and AR computing is clearly the future.
@NezumiiroGray you know an android based AR competitor already exists right? Meta uses Android for their headsets
You clicked, you commented, yet you don't care? 🧢
I enjoy watching his videos, that doesn't do anything with headset.
This comment isn’t necessary ever tbh
There's plastic on top of the glass, so they might as well have made it fully plastic and prevent the cracks or fully glass and prevent if from scratching at a level 3 with deeper grooves at level 4, which is 3 whole levels below glass out of a total of 10 levels.
Apple built a product no one wants or needs. Google Glass should have been a lesson
A bent piece of glass in that way will be under incredible tension, while being incredible brittle. Then, some thermal difference can reasonably lead to cracking, because the stress has nowhere to go.
Can't trust MKBHD due to his relationship with Apple. He's Apple's golden boy. Being mentioned in Apple's promotional event is Marques' wet dream, he would never do anything to jeopardize that.
Yeah i notice that too.
When you have such a fold(don't compare it to a dome), it's a stress point
It's almost like putting an extra screen on the outside of a headset that does nothing but make it more fragile and look creepier was a monumentally stupid idea.
temperature changes and differential expansion? frame or glass warping? regards to design, yeah, there's probably an undiscovered stress point somewhere because of the shape and/or manufacturing process (reminds me of prince rupert's drops)
Similar happened with Quest 1 and Rift S devices, the stress from the manufacturing process is too much that the plastic cracks like this.
You know how much a person isn’t into cars when they drop this line: “McLaren has great warranty” 😂
People are probably putting it on and pressing each side equally hard to get a good seal and this creates pressure in the center part of the glass and you get an even crack.
the external clear cover is plastic, not glass, so it is extremely easy to scratch or break, just check Jerry Rig's durability test video on the Vision Pro
Still could be caused by heat, even if the crack stops from the bottom. Conside: cool air pulled in from the bottom keeps the bottom cool, while the to heats up and expands. That could cause the cooler glass on the bottom to crack. Temp differential.
@Marques: As a black man, it’s really good to see that you’re hiring other skilled and capable brothers to work for and/or with you. Love it! 🤗
It’s got to be user applied mechanical force. I wonder if the frame support is distributing that force evenly. Like they built the flex in to allow for when people put it on their face, but they didn’t consider the inflexibility of the glass.
My laptop did the same thing due to thermal expansion. The entire laptop case cracked open and there was visible bulging near the heat vent.
Is funny how Marques always defend apple "no the crack is fine, it's just a crack"😂😂😂😂
I'd be surprised if this had anything to do with heat, first impressions is that this is because the glass is under tension when its on someones head, the straps pulling back at each side round your face will create tension across the surface of the glass and the indent for the nose will focus all the stress on that point. over time with the tension bein applied and releaved as it goes on and off someones head its really not surprising that it cracks.
I think some folks have the headband too tight which stresses the glass as they put it on and take it off
A polarized view of the front panel should expose any weaknesses. Polarization will allow for the thinner, more stressed areas to show in color variations. I suspect that the molding process leaves this center point very thin, allowing for the heat and subtle torsion to cause this issue.
Curve = stress concentration which makes it fatigue faster. It might add to impact strength depending on the setup, but subtracts from fatigue strength all else equal
I would be pretty sad if it happens to me 😢. I have kept it on for a couple of days straight and it did not crack. I use mine as my main PC monitor right now so it gets used a lot.
No it would be completely hilarious
I have a pretty good guess what the issue is if anyone’s figured it out yet.
My analogy I’m going to use. Regular scuba diving snorkel goggles. Every time you put those on and off your head, it flexes a little bit. It’s a lot easier to see. The outer layer is going to flex the most on the Apple vision pros and the stress of just people putting it on and taking it off a bunch of times put more and more stress on the center of the glass. Kind of like folding a piece of paper 1000 times eventually it will just fall apart in a perfectly straight line.
Speculation based on what was presented here. If we think it could be from expansion of the frame due to heat, the bottom has more surface area connected to the aluminum than the upper. More expansion due to more material to expand. Also such a sharp deflection to create the nose bridge, let’s think about the aluminum repeatedly pushing on the eye lobes of the glass out and in as it expands and contracts. It could really be the reason if the heat is the source of stress
It's the heat from using the unit, the quest 2 gets hot at that spot also, so I think it's from getting hot in the case then cracking.
“Giant crack down the middle” 😂😂😂
It never ceases to amaze me how little some professional tech youtubers/podcasters actually understand about like...the very barebones fundamentals of how things work. "Curves are weak! Because what about that one phone that had curved glass, and uhhh IT DUN BROKE!"
Yes, this shocking insight into the inner workings of the world. I guess flat surfaces are stronk! That's why submarines and airplanes are box-shaped. After all, if round things were so strong, then why did this one product break? Can't possibly be any more depth to that question than that...
Planting a very heavy set of glasses on your braincase being uncomfortable...who would have thunk😂😂😂
Video: Why are Apple Vision Pros Breaking?
After the video: I guess we'll never know.
This crack could be the fact it is actually 2 pieces heat fused together to make it. Now, after use, it is stressing and separating.
I may be wrong, but pretty sure the "Punt" on the bottom of a wine bottle doesn't have much to do with the structural integrity of a wine bottle, but was instead put there as a channel for possible sediments to collect in at the bottom of the bottle, and make it less likely for them to get stirred up into and then poured out of the bottle when pouring? The structural integrity probably comes more from the fact that wine bottles tend to use rather thick glass.... at the very least a couple times thicker than any glass you'd find on an electronic device. I've seen bottles with a much less defined punt bounce off a hard floor and not break, while I've also seen ones with a more defined punt basically explode from a much lesser fall.
00:02 🧐 Crack Gate Discussion
00:55 📱 Using All iPhone Apps Challenge Mention
01:47 🔍 Checking for Cracks on Vision Pro
01:59 🚫 No Crack Found on Our Unit
02:05 🤔 Vision Pro Crack Gate Theories
02:07 📸 Pixel 7 Lens Cracking Comparison
02:36 🛠 Possible Fixes and Customer Reactions
03:12 📲 Cracked iPhones Usage Reflection
03:24 🥵 Heat Expansion Crack Theory
03:44 📍 Crack Location and Potential Causes
04:05 👀 Apple's Potential Recall and Repair Policies
04:29 🔧 Design Flaw Versus User Error Debate
05:06 🚗 McLaren Windshield Crack Parallel
05:40 🌡 Heat and Case Usage Discussion
05:47 🆙 Heat Emission Points and Crack Origin
06:42 📦 Keeping Vision Pro in Case Recommendations
08:39 🚨 LAR Sensor and Crack Relationship Speculation
09:17 🤷 No Reported LAR Sensor Functionality Loss
10:15 📰 Joanna Stern's tech reviews & newsletters
10:20 😟 Discussion on the aging of Apple's fine woven case
11:00 💸 Complaints about the cost of Apple cases
11:38 🤢 Describing how bad the case looks after use
12:33 👋 Outro with Ellis encouraging subscriptions
13:07 🥧 Bonus trivia about cottage pie and shepherd's pie
Key Moments by Agent Gold AI
MKBHD definitely watched his meatcanyon video
I believe the nose area shape is causing internal stress on the glass the sharp bends by the nose may be to much for some glass where the glass structure is not as stable
When the glass is cracking like this every time it is OBVIOUS manufacturing problem.
A likely cause of this issue would be if they've used Polymethyl Methacrylate (PMMA), also known as acrylic or Plexiglas. PMMA is known for its excellent clarity and light transmittance, very similar to glass, making it suitable for applications where clear vision is critical. However, compared to other plastics like Polycarbonate (PC), PMMA is more prone to cracking or breaking upon impact or bending, exhibiting a kind of brittleness similar to glass, especially if it has temperature differentials on either side such as the case of having an OLED display on the inner-facing side and a cooler room or outdoor temperature on the outer-facing side...
You're holding it wrong
--- S. Jobs
My guess is it's from tightening the strap, causing the frame to flex and pulling the screen on both sides.
Wonder if its cracking due to the increase in pressure when pressed against someone head and device bends/flexes when tightening it to get a snug fit.