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geekhack Community => Keyboards => Topic started by: spremino on Wed, 04 December 2013, 09:05:33

Title: Any keyboards with Cherry switches mounted on a curved plate?
Post by: spremino on Wed, 04 December 2013, 09:05:33
Are there any keyboards with Cherry switches mounted on a curved plate, the way Unicomp keyboards do for BS?

I have found what looks like a USA patent for such a keyboard:

http://www.google.nl/patents/US4560844 (http://www.google.nl/patents/US4560844)

But I can't find any implementations.

Thanks.
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: fohat.digs on Wed, 04 December 2013, 09:18:16
Are there any keyboards with Cherry switches mounted on a curved plate, the way Dell AT101 did for ALPS switches,

What? I have completely disassembled two AT101Ws and an AT101 in the past week, and I can assure you that the plates are all flat.
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: lonedruid on Wed, 04 December 2013, 09:19:45
Lol some serious **** u stumbled over on interblnet right there :cool:
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: spremino on Wed, 04 December 2013, 09:20:56
What? I have completely disassembled two AT101Ws and an AT101 in the past week, and I can assure you that the plates are all flat.

I have fixed my original post. Thanks.

I have never owned a Dell keyboard. I have looked only at a few pictures of disassembled ones and it looked like the plates were curved.

Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: suka on Wed, 04 December 2013, 09:41:28
Are there any keyboards with Cherry switches mounted on a curved plate, the way Unicomp keyboards do for BS? I have found what looks like a USA patent for such a keyboard http://www.google.nl/patents/US4560844 (http://www.google.nl/patents/US4560844)

Sue me, sue me  ;D

(http://deskthority.net/resources/bluecube-reloaded/8386)

Wait: no mold, no circuit board, multiple curves - guess not then ...

Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: spremino on Wed, 04 December 2013, 10:05:43
Suka, yours is an interesting alternative solution. I guess that afterwards you connected each switch by using wires, didn't you?
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: MKULTRA on Wed, 04 December 2013, 10:16:40
I actually had this idea awhile ago and was discussing it with another member.  The only production board was the Kinesis which is an ergonomic keyboard.  It is definitely possible though.
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: BearManJim on Wed, 04 December 2013, 11:46:51
Wasn't sure whether Maltron keyboards mounted their switches onto a plate?
http://www.keyboardco.com/keyboard/maltrons-range-of-ergonomic-mechanical-keyboards.asp

The Maltron is very much not plate mounted ;-)  You'll know what I mean when I see one.  It's basically a contoured shaped piece of plastic with square holes cut in it (probably by hand, on the keyboard I've got) and Cherry switches push fit in there.

That's like how you'd plate mount the switches, I guess, except that the keyboard matrix wiring is done using *lots* of individual jumper wires point-to-point - there's no PCB.  If you're careful you can sometimes pop the switches out but you have to be careful not to break those connections.

I reckon for someone with more patience than me it should be possible to switch the mechanisms for MX blues.  I even have some donor switches here to try.  But it's likely to be a fairly fiddly operation and those usually result in me breaking things.  When I got this keyboard I had to fix a part of the keyboard matrix, which has left me with a desire not to do so again!

Guess not then...

That forum thread however linked to this interesting project mod;
http://geekhack.org/index.php?topic=16112.0
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: suka on Wed, 04 December 2013, 12:07:01
I guess that afterwards you connected each switch by using wires, didn't you?
Yes, exactly. Works really well and speeds up prototyping a lot since no PCB has to be designed and produced. You can find details on my boards in my DIY thread over at DT.
Title: Re: Any keyboards with Cherry switches mounted on a curved plate?
Post by: spremino on Wed, 04 December 2013, 12:22:50
That forum thread however linked to this interesting project mod;
http://geekhack.org/index.php?topic=16112.0

Then you can bend a PCB... I didn't know that.

I started this thread because I realized that modern mechanical keyboards emulate a bent panel by sculpting key caps differently depending on their row. However, that makes key presses push not in plumb way over all switches. I guess that that could impact the response and feel of the switch, but I could be guessing wrongly.