How to remove the mechanical keyboard, such as

I think you mean how to open the shaft cover of the shaft above the PBC board and take out the cross shaft core, right?

If this is the case, as shown in the above figure, a bottle opener folded by itself with a key ring looks like this, then extend the bent position upward and outward to the bottom of the clamping leg, open one side forcibly, and then open the shaft cover on the other side in the same way.

If you weld down the whole shaft, you won't have to go to so much trouble. Just reach the card foot with elbow pliers, open the card and face up.

View from a height or a distance

Oh, I'll go upstairs. Is it the village itself? Or steal a name

I think what I don't understand is that you told me that the cross hat is just a prominent cross shaft. Is this the way we discuss it?