this post was submitted on 13 May 2025
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Asshole Design and Crappy Design

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This community covers both asshole designs and crappy designs.

Discuss manifestations of asshole designs whereby the design is deliberately anti-consumer. Manifestations of crappy designs are also welcome in this forum, which reflect poor designs that are not borne out of deliberate contempt for the consumer.

Use of these prefixes is encouraged:

[a/d] ← you are confident that the design is an Asshole Design

[c/d] ← you are confident that the design is a Crappy Design

[ObD]Obsolescence by Design (a specific variety of a/d).

Unprefixed titles are useful if you’re uncertain whether the design is deliberate.

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Existence Rationale:

There are other communities for Asshole Designs and Crappy Designs, but all of the communities at the time of our founding exist only on centralized instances. We are currently the sole decentralized community of this kind. (update: another crappy design forum was recently found in the free-world-- see related communities above)

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I simply needed to remove the shell of this thing.

They cannot simply use screws because that would make it easy to disassemble quickly and non-destructively. So they invented some obscure bizarre clips that require special tools and specific /unpublished/ knowledge. So I was forced to pry around the seam of the plastic until some clips broke. I guessed correctly that a sliding motion was needed but this made no difference because they apparently have hidden latches that must be manipulated before sliding.

Since there are no clues about what prevents us from sliding it open, it’s tempting to pry off the power button in case that is blocking the sliding. The button turns out to be spring-loaded and non-removable, so plastic breaks and shrapnel of small parts scatter when removal is attempted.

After ripping the motherfucker apart, of course clips are broken and the plastic around the edges is chewn up and malformed. Hitting it lightly with a heat gun makes the plastic edging get closer to its original shape by exploiting the “memory” of plastic but it’s never quite right.. always melts and shrinks a little.

I find no videos on disassembly. Folks should really post a video showing the frustration of triggering the booby-traps just as a warning to people.

Of course there are no useful docs for this other than the user manual which pretends that repair is never needed.

Assholes!

Update

I managed to exfiltrate a diagram from a parts shop: Diagram of Bosch Filtrino THD2021/03 hot water dispenser

The joint between part 130 and 140 was a bitch.. broke clips. The joint between 130 and 160 was also a bitch.. required plastic to bend in some dicey gymnastics.

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[–] Cheradenine 5 points 1 week ago (2 children)

A lot of modern crap is snap together assembly . It is not made to be taken apart, you will break tabs if you do. Glue works, or tape if you don't mind it being ugly. Glue makes it harder the next time it needs to be repaired though.

I have made a couple tools to depress the ears on tabs, but my success rate is maybe 60%. You still need to know exactly where they are, and there may be a few screws in there too. It's still better than when the manufacturer uses epoxy, or worse, Ultrasonic Welding.

[–] [email protected] 2 points 5 days ago* (last edited 5 days ago) (1 children)

A lot of modern crap is snap together assembly . It is not made to be taken apart, you will break tabs if you do.

It can go either way. Recall the story of Dell. All their PCs screwed together. Europe complained, saying that screws slow down the disposal disassembly process. Europe forced Dell to make the PCs so that they quickly snap apart. Dell management was outraged at first. They were opposed to being nannied. But Dell had to concede. What they discovered was by making the machines easily snap apart, it incidentally made assembly cheaper and faster. So they realised it saved them money and they should have been doing it all along.

Anyway, snap together clips can be designed for easier disassembly than screws -- or they can pull an asshole Bosch move and design the clips to be complex and self-destructing.

[–] Cheradenine 2 points 5 days ago

Oh, they can be engineered to come apart. The profit is better if you are one of the few people who actually take things apart, but you destroy it in the process.

I recently fixed this clock/Bluetooth speaker thing. All clips, except for two screws hidden behind the thick faceplate. The only way to know they were there was to feel that it wasn't coming apart. Pressing the faceplate to feel for indentations revealed nothing. There was not any good reason for the screws to be there, and you could just break it apart. That would have destroyed the ribbon connector though.

Just asshole design