Start with optional panels
grexBot should work fine with no cosmetic panels at all. A builder might leave the frame bare, add a few trim pieces, or fit a full compatible set. Head, carriage, and stationary-base panels get separate attachment zones, so no shell ever bridges moving parts.
Try three interpretations
Soft rounded uses ivory panels, gray inserts, and curved openings. Angular industrial goes graphite, with chamfers and diagonal vents. The light, partly exposed version keeps a few small trim pieces and shows off more of the servo, frame, and electronics.
Keep the mechanism recognizable
Every study keeps the small landscape face, the red tilt linkage, the direct carriage mounting, the compact belt base, and the detached speaker. What changes is the panel coverage and the shapes. It's the same robot under every shell.
Looks first, clips later
I made these pictures with image generation, as appearance studies. They aren't photographs, dimensioned CAD, or printable shells, and they say nothing about cooling, clearance, or whether a clip will hold. No variant has replaced the original ivory-and-red study. The next mechanical job is to define and test the interfaces.
