Author Topic: Let's make FUTABA switch DIY keyboard.  (Read 2062 times)

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Offline imwill

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Let's make FUTABA switch DIY keyboard.
« on: Thu, 05 April 2018, 14:22:12 »

Futaba Yoda
[/pre]

I always wanted to have Tex yoda for a long time, but I was not able to buy it because it was expensive.
It costs almost over $ 300 !!


and
One day I accidentally got the Futaba switch at the old electronics store in Seoul.
The switch was expensive. $ 0.6 each.

But. I was able to plug it into a prototype pbc board with a flat bottom surface.
The custom pcb for cherry switch was expensive and there was no desired arrangement.

So I decided to create a mini keyboard with track points like tex yoda with futaba switch.

It is a preparation.
1. futaba switches ( about 80 pieces)



2. Lenovo Thinkpad Compact USB Keyboard with Trackpoint (used)


3.  pcb x2 (1.27mm pitch)
It is plated with gold~


Note!: It must be a pcb with 1.27 mm pitch.
This allows you to precisely match key spacing. It is usually 2.54mm.
so,1.27mm pcb is 2 ~ 3 times more expensive.


4. Board to fix pcb

it's cheap.just 3$.

That's it!
Start production.

Step1:
Extract the keyboard controller from the Lenovo keyboard.

When you disassemble the Lenovo keyboard, you will get two key parts: One is the track point sensor, the other is the keyboard controller.



Step2:
Soldering switch to pcb substrate

Because it is a prototype board, you can place the switch in any arrangement you want.
it's 1.27mm pitch, so possible to mount the switch exactly like a ready-made product.

The stabilizer of the space bar is fixed with epoxy. The stabilizer was obtained from a different keyboard.

Because it is two pcb plates, it fixes with wood.

Then, drill holes to connect track point sensors. With that hole, the track point is connected to the controller through that hole.


Step3:
Controller soldering


Lenovo's keyboard controller is very fragile and has a very small soldering area.
Therefore, solder to a separate small pcb for easy modification.



Step4:
Controller and switch soldering


Yes it is a really hard part.
You put a piece of wood in several places on the pcb board.

below is keymap

You can check the keymap layout by looking at the keyboard film.




Step5:
Mouse Switch


The trackpoint sensor can be screwed onto the pcb board and soldered.

Insert the wiring film into the hole.

The three mouse switches are soldered to a separate small pcb.


Step6:
Making Track Point Stick

The stick is fixed with a cylinder and a square column and finished with epoxy.

They are structurally durable and chemically robust with epoxy.




Step7:
Screw on board


Screw the completed board onto the wooden board. It is safe to drill a hole with a drill and then screw it in.



Step8:
Wrap-up










DONE!!



How cute is it.

Offline Blaise170

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #1 on: Fri, 06 April 2018, 10:15:58 »
Perhaps one of the coolest builds I've ever seen. I didn't even realize that you could find loose Futabas like that.
I proxy anything, including keyboards (キーボード / 鍵盤), from both Japan (日本) and China (中國)!

View my current and past keyboards here: https://deskthority.net/wiki/User:Blaise170

Offline imwill

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #2 on: Fri, 06 April 2018, 14:45:55 »
Thanks.
But the keycap is not right. . On the right side, the pageUp and pagedown keycaps do not match the profile. (The switch is soldered correctly, but the height of the keycap does not match.) I will replace it with a dsa keycap.

Offline Blaise170

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #3 on: Fri, 06 April 2018, 14:54:46 »
Fortunately the keycaps are not that hard to replace. It would be much more difficult if you had issues with the switches themselves.
I proxy anything, including keyboards (キーボード / 鍵盤), from both Japan (日本) and China (中國)!

View my current and past keyboards here: https://deskthority.net/wiki/User:Blaise170

Offline r00t4bl3

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #4 on: Wed, 18 April 2018, 19:22:52 »
This is wonderful. Where did you get the Thinkpad keyboard?

Offline dwarflemur

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #5 on: Fri, 20 April 2018, 16:31:25 »
This is wonderful. Where did you get the Thinkpad keyboard?
They can be found pretty easily on ebay.
Camp C225 | Norbatouch | ALF X2 | KBD75 | HHKB | M65-A

Offline imwill

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #6 on: Mon, 30 April 2018, 13:42:30 »
This is wonderful. Where did you get the Thinkpad keyboard?

yes you can buy it easily on eBay.
but i used the controller from I used keyboard.


Offline imwill

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #7 on: Mon, 30 April 2018, 13:46:16 »
I made it form wood to acrylic.







led used the keyboard power.

Offline Blaise170

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #8 on: Mon, 30 April 2018, 14:02:51 »
Looks excellent now! Would totally use it myself.
I proxy anything, including keyboards (キーボード / 鍵盤), from both Japan (日本) and China (中國)!

View my current and past keyboards here: https://deskthority.net/wiki/User:Blaise170

Offline imwill

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #9 on: Sun, 20 May 2018, 13:43:11 »
A little more traditional style


Offline TalkingTree

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Re: Let's make FUTABA switch DIY keyboard.
« Reply #10 on: Sun, 20 May 2018, 14:08:16 »
Masterpiece.
My opensource projects: GH80-3000, Skipad, TOAD (KotM Sept '17), TOAD v2 (KotM April '18), XMMX.