This mod works beautifully and perfectly in performance. I am right now working to mass produce these babies of assemblers family. Lol.
However, though this is not related to Bob's mods, I want to address some things graphically in this: https://imgur.com/80XOpvr
Firstly, the assemblers size are shown as 3×3. I assume that makes bottleneck lite icons (red circles) appears not in place.
Second, the icon in the center of ALT mode is not precisely in the middle of assemblers. Is this made intentionally?
Other than those, this is a great mod. This makes space is efficient for other machines to place and emerges new idea of layout restructuring.