Now I am battling with matrix FPC design of Nanaju.
What is so difficult? Please see the photo below. This is P2PPCB design:
Hand wiring is quite flexsible. P2PPCB Composer F360 can generate wiring diagram and we just follow the diagram to assemble. But FPC is not very flexible like hand wiring:
The black sheet is PVC and the outline is cut by a cutting machine (Silhouette Portrait 4). A matrix FPC should be made with exact dimensions to fit the keyboard frame. I can imagine an automating software tool for this work, but making such tool requires several months, I guess. So I bought a cutting machine and I am battling with the overlooklings and misunderstandings of myself.
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