I just thinking about left numpad for a long time ago, which easy for me working with autocad, playing MMORPG.... and have more space for mice. One time I realize that wkl B.mini EX can fit my idea. They separate numpad, the rest is b.mini (75% layolut), then we can do some magic there.
It made me more than 1 year to find people can help me to make an alluminum case for my idea, and now I seat here, posting my result:
Here is original B.mini ex PCB
I cut it with my dremel. You can see some hole on both side. We need to keep them connect to work funtionally.
soldering controller and other stuff
install stabilizer and some wire.
it have exactly 16 point to connect, and I want to hide all the wire under the plate.
finnishing one side, then continue to left side
DONE
you can see wires was hided
and let the game begin
i forget to order RGB LED, and not cutting the RGB diffuser too. I will test in 1 one week,then install all the LEDs next weekend