I've just finished getting my laptop set up the way I like it, including maximising the RAM and upgrading the screen. I opened it up to use it, and the screws on the hinge tore through the plastic.
To top it off, the plastic on the bottom of the laptop, the side that's been removed here, has also broken.
My wife definitely didn't drop the laptop while she was tidying up though...
EDIT: Apologies all, I'm having trouble with Lemmy today, and it's not letting me reply.
I'll try to reply tomorrow, but in the meantime;
It's a Stonebook branded Clevo n751BU, a 7th gen i5. It's held up respectably well until it appears to have been knocked in the corner where the hinge is. The plastics on both sides of the hinge have given out.
I've ordered a replacement base, but the palm rest which is pictured is not available anywhere that I can find. I'm going to dismantle the hinge to clean and oil it, then reassemble it slightly less tightly, and epoxy the screws into place. The reason for taking it apart in the first place was to add a third hard drive. It has an nvme drive, and I had two HDDs going spare that can hold my documents and music. They're being synced now as I was having problems doing it remotely, but once they're in they can be managed with Syncthing. The laptop shouldn't need to come apart agin afterwards :)
I've been building and repairing computers and laptops for about 30 years, so I'm comfortable with completely stripping it, and can use it as an excuse to give everything a clean again. Short of replacing these HDDs with SSDs, there's nothing else that can physically be upgraded, so I'm half tempted to glue it shut so that I don't get tempted again :D
Laptop repair guy here! This problem is common in consumer grade laptops. As far as I am concerned, it’s purposefully weakly designed, because these break a LOT.
Not the hinge is broken, but the mounting points for the screws that keep the hinge in place. Sometimes it breaks on the bottom case, sometimes it breaks on the screen side.
We fix these issues regularly with epoxy (and massive skillz, lol). With most hinges, you can adjust the force a little lighter to relieve the pressure on the mounting points. That way it doesn’t fail again, after repair.
Machinist guy here!
Threads fail. Threads are generally the most likely thing to fail in any given mechanism. Generally, when the threads are expected to do more work than just sit there and not move, as in fastening a hinge for example, we try to make sure the threads are all the same kind of material.
I would never expect plastic threads to hold up to repeated use with an iron bolt inside. Something is going to give up, and it's going to be the soft plastic threads, every single time.
Think about cheap as fuck IKEA furniture, any time they have a bolt to screw in, you install an insert first. We do the same thing in plastic, aluminum, shit even steel sometimes if we want the bolt to fail first.
I believe you misunderstood the problem, the threads are not usually the problem, the problem is the brass heat insert the hinge threads into, the insert just breaks off the plastic with the screw still threaded in, usually because the hinge is a bit too tight/rigid and puts a lot of force into the insert pulling it out
this seems to be the case in this picture as well