The PETG adhesive test [video]

aeonik

I'm very surprised to see the Polyurethane construction adhesive perform so well.

I noticed it blobbed over both ends. I wonder if the entire blob was helping redirect the load from tension into compression onto the ends. And/or it did a better job resisting the bending moment induced by his asymmetric setup.

I'm also not convinced that the other adhesives compromised the PETG. PETG, while not as resistant as Polypropylene, High density Polyethylenes, or Fluorinated plastics, it's still pretty darned resistant.

At the temperature he was testing at I would expect PETG to survive most acids, bases, and other solvents for days.

Maybe some of the glues were too rigid and robbed the PETG of its strength by preventing flexing?

MMA being at the top makes sense as it's a true chemical weld at that point.

luma

Interesting test and a topic I'm very interested in, but the whole product selection here appears to be very EU-centric.

In the states I've been using Weld-On 4 with some success for PETG-to-PETG bonds in high-stress applications: https://www.tapplastics.com/product/repair_products/plastic_...

wand3r

This is really cool! Don't all the ladder test cases that achieve >~50 simply snap the PETG implements though? So isn't the test capturing the force to snap PETG at that thickness vs. the actual bonds?

ikawe

Yes, but there is a reproducible difference between when different adhesives break the PETG.

He concludes that those adhesives are causing the PETG to become brittle, and you should prefer others which don’t.

debeloo

Missed PVA. That works fine for PLA and is dirt cheap.

tau255

I think Ponal Holzleim Super 3 he tested is PVA based wood glue. MSDS states it based on polyvinyl acetate dispersion.

ddtaylor

Interesting Auto-Dub feature.

GuB-42

Yes, that's cool, however, I would like not to be forced auto-translations from languages I understand.

I am French and this is my primary language, but I understand English and Google knows that (it is in my account preferences). So why do I get videos auto-translated from English into French, with a significant loss in quality. It is particularly bad for titles, the translations are terrible and I can't get YouTube to show me the untranslated title. I probably could set YouTube to use English instead of French, but then, I would have French videos translated into English, which is even worse.

antirez

I believe you can disable it clicking on the gear.

TonyTrapp

It's absolutely infuriating. It could be such an awesome accessibility feature if it wasn't force-enabled by default. But what we get instead is YouTube engineers assuming that everyone just speaks a single language and needs auto-translations on every video. For every channel where this feature is enabled, I have to keep switching back to the original English audio track on every single video because YouTube knows that just because my primary browser language is set to German (the secondary language being English, btw), I am incapable of understanding the original audio track, of course.

matli

Yes, but I would prefer the original audio with translated captions. Why isn't that possible? If they can auto-dub, it should be even easier to give us translated captions.

Gravityloss

This guy's German is very clear, and it's a joy to listen to the presentation. What is the accent? I can see he's based near Münster. I can recommend listening in original language if you know it even a little bit.

antirez

Indeed. YouTube is rolling this out to more and more folks, and it gets really interesting as you can kinda produce videos in your language but still have an international audience. The quality is not outstanding as the voice is a bit robotic, but still... In my channel even if I don't yet have the feature enabled, just because of subtitles auto-translation, I'm seeing more and more foreign subscribers.

new_user_final

There are so many realistic text to voice project shared on HN. Why YouTube is using robotic voice, and it sounds irritating and I can't listen to it more than a minute.

SR2Z

It's almost certainly because of the scale at which this type of thing needs to run. There are a lot of YouTube videos.

svachalek

It's been years since Google demoed their shocking AI voice calls, and still this seems to be the state of things. It's hard to separate the words from the robotic voice here but the state of Google Translate has also been really sad the last few times I've tried it, given the fantastic translation that most LLMs can provide these days.

anamexis

I don't know, I would prefer such things to be slightly robotic over them being in the uncanny valley.

polytely

It's interesting but I wish I could turn it off. would be nice to have a button "dub this for me" instead of being forced to have all the content translated into 1 language, which is infuriating if you understand multiple.

Edit: aha you can switch back to the original audio track

idiotsecant

Seriously. We get so jaded by problems and over-hype of what we collectively call 'AI' but this is something that would have seemed like impossible futuretech 10 years ago.