25 years ago one of early engineering courses included a case study about Ingersol Rand (IIRC). They went out to work floors and saw how all the workers had modified their air wrenches in the same way, adding padding with tape in various areas. They realized they could probably make a better wrench if it had some of those ergonomics built in.
Maybe the next phase of Apple could return to flowing shapes and save our wrists.
If your wrist is in contact with the edge of the laptop while you are actively typing, then your typing style has a good chance of giving you RSI. You'd be better off trying to fix that than trying to make the fast path to RSI more convenient.
How the f are you supposed to type? Ideally I'd like full support for my arms from the elbow to the wrist.
In my first job - i think it was in 1997, I had my own small room with an L-shaped desk with a rounded corner. That gave a few inches of space for resting my arms - both when typing on a quite reasonable Pentium laptop, and especially when using the mouse.
Since then, the desks and the chairs has become shittier and shittier. Except perhaps when a was a consultant for an HR-department.
The U-shaped desk was probably the best ergonomically designed workplace I've had. Maybe a wheat-filled pad along the desk would have made it better.
If your arms are resting, then your fingers and wrists are doing the maximum amount of reaching as you type. If you use a wrist rest you are encouraging your fingers/wrist to reach up (bend in your wrist) instead of neutral or reaching down (more natural position).
Constant change in position, dynamic motion, strong & brief muscular exertion of whole hand and arm, even including the shoulder vs constant static position w/ small repetitive motions, where the fingers really are doing almost all the work.
You should try to avoid continuous static load on your muscles, especially the smaller ones. So you should find a typing position where that doesn't happen. You also want to use your muscles in the strong and comfortable part of their range of motion, which depends on the entire chain of joints, because tendons have to stretch past several joints to get to whatever bone they attach to – so for fluent finger motions, you want to keep wrists and hands in as neutral a position as you can.
If your wrists are not straight while typing a lot, that's really bad. I constantly see people typing with their wrists either significantly flexed or significantly extended; doing that a lot is a fast road to RSI, and even doing it a little is pretty unpleasant and inadvisable.
If you are going to type a whole lot at a stretch (say, as a programmer or writer), you want your arms to be mostly passively supported from the shoulder. Having your arm bent at the elbow doesn't cause much strain, as long as the upper arm is hanging loosely down with your shoulder relaxed – so bring the keyboard relatively close to your torso. Resting your wrists, palms, or forearms on some surface and then typing generally causes more strain than having your wrists and palms "floating" above the keyboard while actively typing. You can rest the fingertips lightly on the key tops if you want. You can rest your palms on a palmrest or arms on an armrest (or table, or lap, or whatever) while you are taking a break from typing. It's generally a good idea to take regular breaks.
There doesn't appear to be good evidence that this is better for RSI. I found one study that shows greater shoulder and back strain when doing the hover hands approach. It might make more sense for piano since you need more mobility up and down the keyboard, but for typing your hands don't need to move nearly as much, so resting should be just fine. The do suggest some sort of support under your wrists, though.
On a modern laptop, the keyboard is on the top half of the lower case these days, not the bottom.
My palms are hovering over or resting on the chassis, and I sit high enough that my wrists do not come in contact with the edge of the case or desk. The majority of the weight of my arms is supported by my shoulders. For me, the ideal height happens to be pretty close to a neutral wrist position.
A more concrete way of putting it is if you are putting so much weight on your wrists that the edge of the MacBook is making you uncomfortable, you're probably doing it wrong.
I've heard this but I've personally been typing this way for 25+ years (wrists on the rest, including on laptops exclusively for the last 15) and my wrists are fine. Meanwhile people I know with ergonomic keyboards and everything that's supposed to save your wrists are the ones with bad wrists.
After RSI years ago, I switched to an X220 and had 100% the opposite experience. The curve at the front of the case was a perfect resting point for the heel of my (average size) hand to allow easy reach of the keys. I replicated this geometry by sanding a pine 1x4 and wrapping that in soft leather for a wrist rest with a procession of mechanical keyboards (currently a Lenco Majestouch 2). Literally decades later, all is well.
This is why I like cheaper tools. Yes, that means cheaper quality but it's far easier to approach taking a dremel to it. And the DIY look usually matches the stock materials better anyway.
The interesting part isn't whether Apple got the design right or wrong, it's that most of us never even consider altering the tools we use every day. We just adapt ourselves instead.
I used to turn the back of my laptop into a whiteboard. Then you could write todos on it or custom messages. Was kind of neat. You know I've always thought the back of the case was wasted potential. Can you imagine if it had an eink display? You could flash whatever you wanted to it as a clean customized print and it would stay there without power. would be cool but prob expensive.
I used a macbook for almost 2 years and genuinely don't understand how people can tolerate these machines. My wrists would be cut up all the time to the point where I looked like I was self harming myself and the glary screen is entirely unsuable anywhere but a darkest basement. Not to mention the terrible keyboard. To this day I'm perplexed how macbooks have such high desirability by full time developers when they're almost unusable.
I just did this to my MacBook not because of the sharp edge but because the pitting turns a sharp edge into a sawblade. Something about the grounding on on the frame when plugged in mixed with my sweaty hands leads to damage along this sharp edge on every MacBook I've ever owned.
Love this! I did this in 2020 and until today I hadn't seen anyone else who had done it. If anyone is tempted, I recommend finishing the job with Micro-Mesh. IIRC, I went up to 12,000 grit and it results in a nicely polished look that catches the light beautifully.[1] I bet it would look even more striking on the actual black MacBooks we have today.
I have literally cut my finger with a sharp edge of one of my Apple laptops. Like a paper cut. Filing the edges down is the right way to do it. However - for that price it should've be done by Apple at their factory.
I thought this was going to be on a softwarefix for the appalling inconsistency that are macOS Tahoe window corners. What I found deeply disturbed me, though I must agree, the edges are a bit more sharp then I'd like and a slight curvature could probably prevent them showing wear and tear [0]. Good on op for doing something they like, even if it's really out there and I could see more "pillowy" hardware becoming a thing now, after a few years of sharp edged devices.
Since I mentioned Tahoe, it bears repeating, my spotlight is still broken.
Yes the front edge is too sharp for me too, more on the middle right where I rest my hand. It hurts.
I think there must be a better solution than a file, like an attachment to effectively round the edges, or even something like fingerless gloves.
On the other hand Apple always replace the top case when the keyboard needs changing so the filing approach may not be entirely insane. It might send a message to Apple.
Are your wrists supposed to be coming into contact with that? I suspect many of us have bad posture and do rest our wrists like that, but if your concern is wrist comfort, you probably want to consider that you're going out of your way to enable harmful posture.
I feel like this is only a problem if you’re keeping your wrists at an unergonomic angle. I’m not saying that everyone is perfect all the time but like this is barely an issue if you’re sitting at your desk?
is this an employer-issued computer? Like if I did something similar on my DELL laptop (us lowly devs at %DAY_JOB% don't have Macs), management would be up my ass the minute they saw this, if only because the maintenance agreement the company has with our supplier will likely be voided for my machine.
> People like to freak out about this, so I wanted to post it here to make sure that everyone who wants to freak out about it gets the opportunity to do so.
I've grown to appreciate unapologetic trolling of people who care way too much about what other people do to themselves or their own private property.
It's actually reveal the major issue in Apple products where aesthetics prevail over tactile. Sharp edges and aluminium is the worst way to make things that people use by fingers. I have some older version of Apple TV remote control and every day I wonder how it was approved to production, it's barely usable.
I'm strongly convinced that modern iPhones designed to use in case as basic idea, while using iPhone without case is like using that Nokia phone unit when you take the housing off. In that case I think that iPad with magnetic keyboard (which is soft-touch plastic) is the future of Apple mobile computers.
I'm not brave enough to try this on my own, but I applaud the effort. I'm pretty sure I'm developing lasting calluses on the underside of my wrists from all the constant rubbing against the sharp edge of my MBP.
I've done this to my MacBook around the sharp and unpleasant corners near the touchpad. I had the laptop a few weeks before I couldn't take how unpleasant it was to touch any more.
Cool, but why is the most rounded-off part in the center? My wrists cover the edge at 5-25% and 75-95% when typing. When mousing, my right hand fleshy pad covers the edge at 65-80%.
To my great dismay, I discovered the physical incompatibility of two Apple products recently: The sharp edge of my MBP and my Apple Watch’s magnetic strap. It seems that the magnets are an effective abrasive, resulting in a ruined strap and a rounded edge.
Thank you Apple, you have taken designed obsolescence to a new level.
I did something similar with drawer handles. I was living in a place with cheap furniture and the handles were aluminum billet cut to length and tapped so it could be screwed to the drawer face. The edge on either side were crazy sharp. If you bumped it with your knee you'd easily cut the skin.
So I took some 1000 grit sand paper for metal and gently wet sanded the edge. If you rotate it a little you can get a very small radius evenly around the edge and it will keep a nice finish that matches brushed aluminum.
I'd actually feel comfortable doing this to a Macbook having done it to the drawer handles. Just use little pressure, back the paper with something flat, and check your progress often. It takes very little to remove the sharpness to the edge, to the point it's hard to see with the naked eye.
A few weeks ago I accidentally dropped my space grey MBP. It had the lip open and fell on its right corner, inner/keyboard side.
The machine is fine and I didn’t even have to adjust the screen as it was still correctly in place but on that corner the aluminium lifted up forming a mountain shape, about 2 mm tall and very sharp.
Not only this was uncomfortable, but it also meant I couldn’t close the lid properly and might eventually crack the screen from it, so I filed it away. Like OP, I started with a pretty gritty file to get most of the tip off, then finished with a multi-tool with the sanding attachment. I went through a few grits but I got bored long before it was smooth.
In the end, I actually liked the look, and have been considering going all around like OP. I may have to do it now.
If my work computer were my own I would do this in a second. The MacBook pro is ridiculously uncomfortable, both in terms of geometry and heat. I don't mind when it gets warm but on a cold morning it's just downright unpleasant to get working on it.
I've been meaning to do this forever and think this game me the push I've needed to do it tonight when I get home. Probably not as rounded as OP, but it's reassuring to know I could go that rounded and it wouldn't fall apart.
Maybe it's because I type like one would play the piano (with hands curved, fingers well below the palms), but I've never ran into an issue like this with a laptop before, wrists always clear the edges by a couple inches.
Yea, that's ugly. I'm sure it could've been done more gracefully with 15 minutes more effort. But judging from the general wear and tear on this poor Mac I guess they don't even consider the resale value.
I know it's too sharp for many people, but I've also heard a lot of people say they really enjoy touching the sharp corners of MacBooks repeatedly during boring meetings...
A spinal injury three years ago made me above-averagely aware of ergonomics, as I created a dedicated office (chairs, floating supports for monitors, keyboards, etc.) that would support the injury.
I have to say that I now access the 8 or so machines across my LAN and VPS via a Macbook Air rested on my lap, either through RDP or SSH. I probably use this 80% of the time. Because the machine is on my lap, held up at about 30 degrees on my lap, I can't say I ever noticed the sharp edges, until this post!
I have a MacBook and honestly barely use it anymore partly because of this. The front edge digs into my wrists after any extended session. It surprises me from Apple — a company known for obsessing over every detail of the user experience. Do they not test these things for hours of actual use? It's the kind of thing that seems like it would get caught immediately in any real-world usability testing.
Thank you for giving me the opportunity to freak out about it. I did so, but only a little bit. Then i thought about how i have sometimes felt the bottom corner to be a bit uncomfortable. But then i thought that it wasnt a big enough issue to be worth the effort of filing off the edge
Also a little bit pedantry, you seem to have mostly filed the edge off, which seemed to be the real issue, the corners on that center divet are filed off, but its mostly edges
678 comments
The flame war on whether the original chassis design sucks or rocks is not that interesting.
Maybe the next phase of Apple could return to flowing shapes and save our wrists.
>
save our wristsIf your wrist is in contact with the edge of the laptop while you are actively typing, then your typing style has a good chance of giving you RSI. You'd be better off trying to fix that than trying to make the fast path to RSI more convenient.
In my first job - i think it was in 1997, I had my own small room with an L-shaped desk with a rounded corner. That gave a few inches of space for resting my arms - both when typing on a quite reasonable Pentium laptop, and especially when using the mouse.
Since then, the desks and the chairs has become shittier and shittier. Except perhaps when a was a consultant for an HR-department.
The U-shaped desk was probably the best ergonomically designed workplace I've had. Maybe a wheat-filled pad along the desk would have made it better.
If your arms are resting, then your fingers and wrists are doing the maximum amount of reaching as you type. If you use a wrist rest you are encouraging your fingers/wrist to reach up (bend in your wrist) instead of neutral or reaching down (more natural position).
> but hovering like a pianist is not good for extended computer use.
Why ?
If you were taught piano by any teacher worth their fee, then your position is natural, effortless and your wrists are limp without tension.
Exactly the same position as an ideal computer keyboard position.
Piano position is the best keyboard position. Your fingers are doing the work.
If your wrists are not straight while typing a lot, that's really bad. I constantly see people typing with their wrists either significantly flexed or significantly extended; doing that a lot is a fast road to RSI, and even doing it a little is pretty unpleasant and inadvisable.
If you are going to type a whole lot at a stretch (say, as a programmer or writer), you want your arms to be mostly passively supported from the shoulder. Having your arm bent at the elbow doesn't cause much strain, as long as the upper arm is hanging loosely down with your shoulder relaxed – so bring the keyboard relatively close to your torso. Resting your wrists, palms, or forearms on some surface and then typing generally causes more strain than having your wrists and palms "floating" above the keyboard while actively typing. You can rest the fingertips lightly on the key tops if you want. You can rest your palms on a palmrest or arms on an armrest (or table, or lap, or whatever) while you are taking a break from typing. It's generally a good idea to take regular breaks.
https://pubmed.ncbi.nlm.nih.gov/15145291/
My palms are hovering over or resting on the chassis, and I sit high enough that my wrists do not come in contact with the edge of the case or desk. The majority of the weight of my arms is supported by my shoulders. For me, the ideal height happens to be pretty close to a neutral wrist position.
I also really like this article and am 100% supportive of people messing around and modifying their stuff.
Later on the topic came up online and someone noted something to the effective of:
“If I saw a group of photographers taking pictures, I bet I could pick out the best photographer just based on how beat up their equipment is.”
I realized based on my own experience, that was probably true.
The idea being use your tools and worry about the output, not how they look.
The modding community is a shadow of its old self these days
> The takeaway from this article should be to consider modifying your tools to your needs even in unconventional and controversial ways. I love it.
I get the feeling that might not be the greatest idea in some fields.
For example, anything that could kill you (or others) if it goes wrong. ;)
See https://www.reddit.com/r/macbook/s/hbyVh5SJhw for another poor soul with the same caustic skin
Author's another post on "The Seasons are Wrong" [0] is excellent too and I fully support both approaches.
[0] https://kentwalters.com/posts/seasons/
Co-worker 1: Interesting. I wonder if that voids the warranty. It's Apple you know.
Co-worker 2: May Jobs have mercy on their soul...
Co-worker 3: Not a bad idea. But not sure if that would cause problems with structural integrity of the laptop, like if you drop it or something.
Co-worker 4: The only downside I see is that you can no longer say "Hey, that's a sharp-looking laptop!"
[1] https://x.com/andrewculver/status/1297575768520716288/photo/...
I've got no idea why, but the sharp feeling is amazing.
And yes, why are they so sharp?
I seem to recall my wife having the plastic MacBook that came out circa 2006 and the edges on that thing were legitimately painful.
I always marvel at how sharp the points are on the notch of the lid on my current MacBook. Very very pointy.
Since I mentioned Tahoe, it bears repeating, my spotlight is still broken.
[0] https://ljpuk.net/2025/05/23/how-does-the-space-black-macboo...
- Sharp edges eat into my forearms.
- Glossy screen makes it hard to see when it's light out.
- The keys have a real hard stop when you press on them which tires out my hands.
- An arrogant desire to obsolete ports.
I don't understand the appeal of the machine, it feels like style over function everywhere.
I think there must be a better solution than a file, like an attachment to effectively round the edges, or even something like fingerless gloves.
On the other hand Apple always replace the top case when the keyboard needs changing so the filing approach may not be entirely insane. It might send a message to Apple.
>it is uncomfortable on my wrists
Are your wrists supposed to be coming into contact with that? I suspect many of us have bad posture and do rest our wrists like that, but if your concern is wrist comfort, you probably want to consider that you're going out of your way to enable harmful posture.
Totally fine to do whatever you want to your personal belongings though.
> This was on my work computer.
Bold move to do this on your work Macbook. I'd be too worried of getting chased down with a bill when returning the laptop eventually.
> This was on my work computer
is this an employer-issued computer? Like if I did something similar on my DELL laptop (us lowly devs at %DAY_JOB% don't have Macs), management would be up my ass the minute they saw this, if only because the maintenance agreement the company has with our supplier will likely be voided for my machine.
> People like to freak out about this, so I wanted to post it here to make sure that everyone who wants to freak out about it gets the opportunity to do so.
I've grown to appreciate unapologetic trolling of people who care way too much about what other people do to themselves or their own private property.
I'm strongly convinced that modern iPhones designed to use in case as basic idea, while using iPhone without case is like using that Nokia phone unit when you take the housing off. In that case I think that iPad with magnetic keyboard (which is soft-touch plastic) is the future of Apple mobile computers.
Thank you Apple, you have taken designed obsolescence to a new level.
So I took some 1000 grit sand paper for metal and gently wet sanded the edge. If you rotate it a little you can get a very small radius evenly around the edge and it will keep a nice finish that matches brushed aluminum.
I'd actually feel comfortable doing this to a Macbook having done it to the drawer handles. Just use little pressure, back the paper with something flat, and check your progress often. It takes very little to remove the sharpness to the edge, to the point it's hard to see with the naked eye.
The machine is fine and I didn’t even have to adjust the screen as it was still correctly in place but on that corner the aluminium lifted up forming a mountain shape, about 2 mm tall and very sharp.
Not only this was uncomfortable, but it also meant I couldn’t close the lid properly and might eventually crack the screen from it, so I filed it away. Like OP, I started with a pretty gritty file to get most of the tip off, then finished with a multi-tool with the sanding attachment. I went through a few grits but I got bored long before it was smooth.
In the end, I actually liked the look, and have been considering going all around like OP. I may have to do it now.
Depending on exactly how much magnesium is in the alloy, metal shavings can be highly flammable and otherwise hazardous.
I think it's fine to mess with stuff like this, just make sure you know what you can do safely to the materials.
I like the idea of fully blending the notch, rather than just rounding slightly. Looks comfy and distinct!
> This was on my work computer.
I would love to see the guys reactions when you have to give this back.
All the same, hell yeah.
Respect.
I definitely empathize with "concerned I would file through the machine."
Don't treat your lathe faceplate as a precious artifact. Need to clamp an oddly shaped part to it? Drill and tap some holes. That's what it is for.
Is that reamer too long to fit? Cut it shorter.
Modify your tools to make you happier or more productive.
What if the modification doesn't turn out well? Great! You learned something. Make the next one better.
I have to say that I now access the 8 or so machines across my LAN and VPS via a Macbook Air rested on my lap, either through RDP or SSH. I probably use this 80% of the time. Because the machine is on my lap, held up at about 30 degrees on my lap, I can't say I ever noticed the sharp edges, until this post!
Also a little bit pedantry, you seem to have mostly filed the edge off, which seemed to be the real issue, the corners on that center divet are filed off, but its mostly edges