TL;DR
Keep the current design for Assembling machine Mk I, while update Mk II & III to the yet to be revealed redesign.This should convey information about differently behaving entities (see below) and for nostalgic reasons.
Source: FFF 301
What ?
One of the last remaining redesign, postponed to 1.1 (FFF355), is that of the Assembling machine.As hinted in the FFF301 the redesign will look much more high-Tech. It should probably be investigated to keep the current design for the Mk I while updating it for the Mk II & III.
Why ?
Assembling machine Mk I compared to the higher tiers behaves quite differently.Particularly considering the missing of module slots and fluid intake or the
This should be represented visually. Either to convey more information through the graphics, or for nostalgic reasons, to keep such a long lived (FFF23) and iconic design alive.