Chamber to part size ratio
The chamber to part size ratio is the volumetric ratio between the assembly chamber
and the the maximal size of product that can be assembled in that chamber.
Contents
Sheet form-factor gemstone metamaterial on chip factories
In case of convergent assembly that stops short, that is convergent assembly that stops at a layer with still has many chambers inside
this last layer now must eventually fill the whole volume of space above densely. So the (now virtual) chamber to part size ratio
drops to exactly 1. To compensate for that the sub-chambers must either be stacked or operate faster in terms of absolute speed (or both).
Box form-factor gemstone metamaterial on chip factories
This is especially important at the macroscale end of convergent assembly with a single assembly chamber at the very top.
Just like with 3D printers it is inconvenient needing a giant machine only to produce minute parts.
Bigger chamber to part size ratios possible but not desirable at smaller scales
At smaller scales a high chamber to part size ratio is much less critical
as long as one can compensate with increasing speed of operations (or stacking same sized layers).
Higher speeds indeed are possible given the good characteristic-force to characteristic-stiffness ratio of gem-gum materials.
In the interest of minimizing friction losses stacking is to prefer over speedup though.
Higher factors may give more design freedom in design of robotics and other necessary subsystems.
