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iMac could have been made without a chin, proves new hack

The iMac with it's chin moved to the rear casing

Some users were disappointed by the 24-inch iMac redesign since it retained the chin — so one engineer decided to redesign the case.

The 24-inch iMac was released in 2021 with a redesigned chassis, but it still had a small chin on the lower edge of the display. Apple placed the processor and ports in this section of the display to keep it super-thin and uniform.

An engineer called "Technology Hunter" on Chinese social media site Bilibili attempted to redesign the 24-inch iMac with a uniform display bezel. He moved the chin to the rear of the display, enabling a Studio Display-like bezel.

The modification required an all-new case machined to fit the relocated components. While the final result is striking, it isn't practical.

Having a hump on the rear of the iMac like the one in this example would require expensive and complex CNC machining. That is not so much the problem for Apple, but the waste generated from it might be. It would make the iMac much more expensive and time-consuming to manufacture.

The later-model Intel iMac famously had a bubbled-out rear case. This increased the interior volume behind the display for cooling, and accommodated the motherboard, RAM slots, penetration depth required for the ports, and more. Apple's solution for all of this in the new iMac was retaining the chin.

Apple prioritizing a thin unit in the Apple Silicon redesign meant that this bubble had to disappear. Without the chin in the new iMac, or a protrusion like in this hack, there wouldn't be room for the USB-C ports, nor the magnetic charger. And, heat from components would be directly applied to a small spot on the back of the monitor panel, shortening it's life.



49 Comments

bobolicious 10 Years · 1178 comments

I had long hoped Apple might simply use the chinless Cinema/Thunderbolt monitor design, keeping the magnetic glass for ease of servicing and the elegant tapered convertible (vesa) stand, adding vents if needed, 4K & USB 3.1, and perhaps moving to an external power supply if needed to lighten it up and reduce heat. Perhaps ARM might help the heat considerations ?  I would guess many options were explored...

dewme 10 Years · 5775 comments

I'd be totally cool with a chin-less design and even more so with a two-piece design with the back hump being removal so the entire processing capability of the machine can either be upgraded while retaining the same display or replaced with a stub module that allows the display to be used strictly as a display. Of course this begs the question of why not just use a Mac mini and a monitor like the Studio Display? Fair enough.
The only real issues I have with the chinny iMac designs are the subjective ugliness of using it with supplementary monitors and the fact that the standard stand lacks vertical adjustability. Otherwise they are nice enough looking and easy to fit into limited desk space. Personally, I'd like Apple to put the Apple logo back on the chin. I don't know why, but the missing logo makes it look very boring and generic. In my opinion the back side of the 24" M1 iMac looks much better than the front, which seems rather ass-backwards for those of us who have one placed up against a wall.  

sflocal 16 Years · 6138 comments

Oh my god... people have way too much time on their hands.  Amazing the effort people put into lame projects.  I get it, many don't like the "chin".  Thankfully, I'm not one of them.  Get over it already.  That horse has been beaten to death so many times.

sandyman18 2 Years · 10 comments

As Dewme points out, if you want a chinless design get a Mac mini and a studio display.  A chinless iMac would look like just another monitor sitting on the desk.

karmathing 3 Years · 2 comments

sflocal said:
Oh my god... people have way too much time on their hands.  Amazing the effort people put into lame projects.  I get it, many don't like the "chin".  Thankfully, I'm not one of them.  Get over it already.  That horse has been beaten to death so many times.

As a matter of interest, if you were paid staggering amounts of cash, what features would you change in the next generation of iMac?