Ask Hackaday: Do You Need A Tablet?

There’s an old saying that the happiest days of a boat owner’s life are the day they buy the boat, and the day they sell it. For me, the happiest days of an Android tablet owner’s life are the day they buy a new one, and the day they buy a newer one. For some reason, I always buy tablets with great expectations, get them set up, and then promptly lose them in a pile on my desk, not to be seen again. Then a shiny new tablet gets my attention in a year or so, and the cycle repeats.

You might be thinking that I just buy cheap junk tablets. It is true that I have. But I have also bought new Galaxy and Asus tablets with the same result. Admittedly, I have owned several Surface Laptops and Pros, and I do use them. But I can’t remember the last time I have used one without the keyboard. They aren’t really tablets — they are just laptops that can also be heavy, awkward tablets.

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Noctua Releases 3D Models, But Please Don’t Try To Dupe The Products

Noctua wants to make life easier for fans of its…fans. To that end, the company has released a bevy of 3D models across its various product lines, all available to download for free.

If you’re not familiar with the company, Noctua specializes in high-quality cooling systems for the PC market. Its hope is that by freely providing 3D models of its components, it will aid aftermarket companies and DIYers that wish to integrate Noctua fans into their gear. In the company’s own words, these files are made available for “mechanical design, rendering, or animations.” They will let people check things like mountings and fitment without having to have the parts on hand, or to create demo visuals featuring the company’s products.

Don’t get too excited, though, because Noctua has already thought ahead. The company has specifically noted these parts aren’t intended for 3D printing, and critical components like fan blades have modified geometry so as to not compromise the companies IP. You could try and print these models, but they won’t perform like the real thing, and Noctua notes they shouldn’t be used for simulation purposes either. They’re intentionally not accurate to what the company actually sells in that regard.

That isn’t to say Noctua is totally against 3D printing. They have lots of parts available on Printables that they’d love you to try—everything from fan grilles to ducts to anti-vibration pads. Most are useful accessories—the kind of little bits of plastic that make using the products easier—that don’t threaten Noctua’s core product line in the marketplace.

If you’re whipping up a custom PC case and you want to kit it out with Noctua goodies, these models might help you refine your design. It’s funny how it’s such an opposite tactic to that taken by Honda, in terms of embracing the free exchange of 3D models on the open Internet. It’s a move that will surely be appreciated as a great convenience, and we’d love to see more companies follow this fine example.

Thanks to [irox] for the tip!

Wipeout Clone Runs Native On ESP32-S3

Psygnosis’s 1995 game Wipeout is remembered for two things: being one of the greatest games of all time, and taking advantage of the then-new PlayStation’s capacity for 3D graphics. The ESP32-S3 might not be your first choice to replace Sony’s iconic console, but [Michael Biggins] a.k.a. [PhonicUK] is working on doing just that, with his own clone of Wipeout on the Expressif MCU. 

It’s actually not that crazy when you think about it. The PlayStation had a 32-bit RISC processor, and the ESP32-S3 is a 32-bit RISC processor. The PlayStation’s was only good for about 30 Million Instructions Per Second (MIPS) but it had a graphics co-processor to help out with the polygons — the ESP32-S3 has two cores that can help each other, which combine to about 300 MIPS. In terms of RAM, the board in use has 8 MB of PSRAM, while the faster 512 kB on the chip is used, in effect, as video ram.

The demo is very impressive, especially considering he’s fit in three computer players. He’s also got it blasting out 60 frames per second, which is probably double what the original Wipeout ran on the PS1. Part of that is the two cores in action: he’s got them working together on the interlaced video output, one sending while the other finishes the second half of the frame. Each half of the video gets dedicated space in the internal memory. Using a 480×320 pixel display doesn’t hurt for speed, either. Sure, it’s paltry by modern standards, but the original Wipeout got by with even fewer pixels — and it didn’t run on a microcontroller. Granted it’s a beefy micro, but we really love how [Michael] is pushing its limits here.

Right now there’s just the Reddit thread and the demo video below. [Michael] is considering sharing the source code for his underlying 3D engine under an open license. We do hope he shares the code, as there are surely tricks in there some of us here could learn from. If it’s all old hat to you, perhaps you’d rather spend a weekend learning raytracing.

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