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DIY mechanical keyboard switch lets you set its actuation point

arstechnica.com

41–50 of 79 posts

Re: DIY mechanical keyboard switch lets you set its actuation point

#41

It was my understanding that by keeping the magnet in opposing field for long time makes it loose magnetism or worse reverse the polarity.

Yes. It takes quite some time, though.

There are hall effect switches from the 60s that still work.

Edit: oh, this uses a magnet instead of a spring. That might cut the neodymium magnet lifetime short. I wonder how much..

Re: DIY mechanical keyboard switch lets you set its actuation point

#43
post #7

>Fans of Hall-effect mechanical switches note that they should last longer than traditional mechanical switches since they don't rely on metallic contact, which can result in degradation. Has anyone ever typed so much on a keyboard that the switches wore out? Aren't they good for literally millions of actuations?

In the opposite direction: I had a keyboard once that I set aside for a couple of years and when I tried to use it again some of the keys didn't register reliably. It took a couple of days of use before everything worked smoothly.

Re: DIY mechanical keyboard switch lets you set its actuation point

#44
post #26

At this rate, soon each switch will have a programmable controller inside, and you'll have drivers adjusting them as you type. Thought idea: predict what key you are about to press next, and make the ones around it stiffer so you are less likely to press them by mistake.

Recently, a few brands (Wooting, Razer, Steelseries, etc) have introduced keyboards with analogue-capable input (using either hall-effect, like the switch in the article, or optical sensors). This already allows the actuation to be set per-key in software, so your idea probably wouldn't even be that hard to implement with today's hardware! (although you may need a beefier microcontroller on the board)

Re: DIY mechanical keyboard switch lets you set its actuation point

#46
post #25

Earlier quoted context omitted.

I have a 5yo Cherry MX keyboard, and the rarely used keys (Scroll Lock, Pause, numpad) have a somewhat more defined feeling when they actuate than the most commonly used ones. The difference is subtle, but it's there.

That's probably the spring mechanism wearing out - the actual electrical part is still working properly.

That's also the part that isn't worn out under this hall effect approach; the keys are magnetically levitated.

Re: DIY mechanical keyboard switch lets you set its actuation point

#47
post #26

At this rate, soon each switch will have a programmable controller inside, and you'll have drivers adjusting them as you type. Thought idea: predict what key you are about to press next, and make the ones around it stiffer so you are less likely to press them by mistake.

That sounds like a nightmare x) my keyboard deciding that I shouldn't get to type what I want sounds very frustrating.

Re: DIY mechanical keyboard switch lets you set its actuation point

#48
post #26

At this rate, soon each switch will have a programmable controller inside, and you'll have drivers adjusting them as you type. Thought idea: predict what key you are about to press next, and make the ones around it stiffer so you are less likely to press them by mistake.

Recently, a few brands (Wooting, Razer, Steelseries, etc) have introduced keyboards with analogue-capable input (using either hall-effect, like the switch in the article, or optical sensors). This already allows the actuation to be set per-key in software, so your idea probably wouldn't even be that hard to implement with today's hardware! (although you may need a beefier microcontroller on the board)

My very first computer, Nascom-2, in about 1981 had Hall effect keys. It was the best keyboard I have ever used :-(

Re: DIY mechanical keyboard switch lets you set its actuation point

#49
post #47
post #26

At this rate, soon each switch will have a programmable controller inside, and you'll have drivers adjusting them as you type. Thought idea: predict what key you are about to press next, and make the ones around it stiffer so you are less likely to press them by mistake.

That sounds like a nightmare x) my keyboard deciding that I shouldn't get to type what I want sounds very frustrating.

Every smartphone already does this.

Re: DIY mechanical keyboard switch lets you set its actuation point

#50
If you want something you can actually buy, check out the wooting he

https://next.wooting.io/wooting-60he

You can set per key actuation points, and bind multiple different inputs to the same key but different depths, etc.

Great review here

https://m.youtube.com/watch?v=glQNEbh79xg

You can even mod it into another case for the DIY crowd.

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