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The Tesla Armor Glass demonstration on the actual truck was such a fail. And now the broken glass is on full display to everyone watching.

Forge36 7y ago
Did they not test this?
- mavdi 7y ago
  Failed twice consecutively. Aren’t the side glasses meant to be breakable by regulation for escaping situations when the door is jammed?
  - hinkley 7y ago
    Two crazy theories: They'd been testing on the front and rear windows and someone thought it would scan better on stage to do the side. Or if they've been testing on this exact car and repeated strikes delaminated the mylar layers enough for it to fail.
    - rtkwe 7y ago
      I think the explanation is much simpler, the guy threw it faster than it was falling in the earlier test. After ~8m (more than the 20-25 feet someone else estimated) the ball is only going ~45 km/h or ~28 mph which is pretty slow actually.
  - jayd16 7y ago
    Yeah I was thinking about this. Would such a flub to forget only the windscreen was the new glass though.
bluealienpie 7y ago
Can't believe they didn't test the vehicle prior to demo. Very amateur
kemiller 7y ago
Heads are going to roll. This is going to be hard to recover even if the truck is amazing.
- kemiller 7y ago
  Though, honestly, I’d still buy one.
bdamm 7y ago
It cracked but did not fail. Is that not supposed to be how it works?
- dmix 7y ago
  Looks like how bulletproof glass looks after impact...
- Benjamin_Dobell 7y ago
  No, it's not supposed to crack. In the stream they said they threw wrenches at it in the past and it didn't crack.
- Magi604 7y ago
  The test before showed them dropping softball-sized metal balls onto a horizontal pane of Tesla Armor Glass from 20-25 feet in the air without any damage, so it set the expectation of impervious glass. Maybe if Musk stated that the glass was meant to just crack but not shatter, it would have made sense, but to me the impression I got was that the live demo on the truck was done on the fly without prior prep (Musk did say after the glass cracked that "at least it didn't go through", but not beforehand).
  - taborj 7y ago
    I think the reactions that Musk and Holzhausen had tell the story. They were not expecting that to happen at all. Also, as noted in another story[0], the horizontal plane didn't break at least in part because it wasn't fixed rigidly in place, and thus was able to distort. [0] https://www.thedrive.com/news/31158/tesla-cybertrucks-armored-windows-break-during-on-stage-durability-test https://www.thedrive.com/news/31158/tesla-cybertrucks-armore...
maxden 7y ago
Maybe they were supposed to use the first ball that was smaller? Certainly came as a surprise to Elon. I notice they let the panel glass bounce in the drop test, which isn't similar to a window installation.

Forge36 7y ago

Did they not test this?

mavdi 7y ago
Failed twice consecutively. Aren’t the side glasses meant to be breakable by regulation for escaping situations when the door is jammed?
- hinkley 7y ago
  Two crazy theories: They'd been testing on the front and rear windows and someone thought it would scan better on stage to do the side. Or if they've been testing on this exact car and repeated strikes delaminated the mylar layers enough for it to fail.
  - rtkwe 7y ago
    I think the explanation is much simpler, the guy threw it faster than it was falling in the earlier test. After ~8m (more than the 20-25 feet someone else estimated) the ball is only going ~45 km/h or ~28 mph which is pretty slow actually.
- jayd16 7y ago
  Yeah I was thinking about this. Would such a flub to forget only the windscreen was the new glass though.

bluealienpie 7y ago

Can't believe they didn't test the vehicle prior to demo. Very amateur

kemiller 7y ago

Heads are going to roll. This is going to be hard to recover even if the truck is amazing.

kemiller 7y ago
Though, honestly, I’d still buy one.

bdamm 7y ago

It cracked but did not fail. Is that not supposed to be how it works?

dmix 7y ago
Looks like how bulletproof glass looks after impact...
Benjamin_Dobell 7y ago
No, it's not supposed to crack. In the stream they said they threw wrenches at it in the past and it didn't crack.
Magi604 7y ago
The test before showed them dropping softball-sized metal balls onto a horizontal pane of Tesla Armor Glass from 20-25 feet in the air without any damage, so it set the expectation of impervious glass. Maybe if Musk stated that the glass was meant to just crack but not shatter, it would have made sense, but to me the impression I got was that the live demo on the truck was done on the fly without prior prep (Musk did say after the glass cracked that "at least it didn't go through", but not beforehand).
- taborj 7y ago
  I think the reactions that Musk and Holzhausen had tell the story. They were not expecting that to happen at all. Also, as noted in another story[0], the horizontal plane didn't break at least in part because it wasn't fixed rigidly in place, and thus was able to distort. [0] https://www.thedrive.com/news/31158/tesla-cybertrucks-armored-windows-break-during-on-stage-durability-test https://www.thedrive.com/news/31158/tesla-cybertrucks-armore...

maxden 7y ago

Maybe they were supposed to use the first ball that was smaller? Certainly came as a surprise to Elon. I notice they let the panel glass bounce in the drop test, which isn't similar to a window installation.