b-letter stencil 3d model

Target Device: Firebat Mini PC (5 in x 5 in x 1.5 in). Design Type: Single-piece open-bottom drop sleeve (designed to slide directly down over the PC). Dimensions & Clearance: Inner Cavity: 5.12 in x 5.12 in x 1.55 in (130 mm x 130 mm x 39.5 mm) for a snug, slide-fit. Bottom: Completely open (0 mm base thickness), leaving the base of the PC exposed and resting on the desk. Wall Thickness: 3 mm uniform shell. Key Features & Cutouts: Top Face (Pass-Through Stencil): Centered on the top panel is a prominent, capitalized, classic block letter "B" (resembling the style of the Boston Bruins letter). This "B" is rendered as a full-thickness (3mm) stencil cutout (pass-through opening). This open stencil design allows the grey surface of the internal PC to be visible directly through the letter "B." Critical: The design must include small, minimal internal structural bridges (2mm width) connecting the central islands of the letter "B" (the negative space inside the two loops) to the