This keyboard is made with 3D printed parts and a control board from an old standard keyboard.

The base is customized to install my control board from an old keyboard. You can still use this model by removing some parts of it.

I use Cherry blue switches. But seem black switches are better for gaming.

Noted that, the wiring of control board may be different.

The instruction can be found here: http://tieba.baidu.com/p/3993450654?pn=3
(Google translate it XD)