Tactical Welding Mask Shell

Use the attached photo ONLY as the engineering reference for the actual goggle mounting interface. Do NOT copy the flat plate as the final design. Create a ONE-PIECE 3D-printable aggressive tactical/welding-mask shell that bolts directly to this interface. CRITICAL MOUNTING: Exactly 6 holes in a straight rectangular 3×2 grid: 3 top, 3 bottom. No curved, staggered, offset, or rotated pattern. ALL DIMENSIONS ARE IN INCHES: Overall left-to-right hole-center spacing: 4.100" Horizontal hole spacing: 2.050" Top-to-bottom hole-center spacing: 2.540" Hole diameter: 0.075" Hole centers: Top: (-2.050,+1.270), (0,+1.270), (+2.050,+1.270) Bottom: (-2.050,-1.270), (0,-1.270), (+2.050,-1.270) These dimensions are LOCKED. Do not alter the hole positions. The rear mounting surface must be completely FLAT and planar. The six holes pass through this flange. The center must be a completely OPEN viewing window. NO lens, visor, glass, or transparent material. The existing goggle lens remains behind the opening. Build the mask FORWARD from the flat mounting flange as a substantial 3D shell. EXTERIOR STYLE: Aggressive futuristic welding/tactical mask. Angular, faceted, mechanical geometry with a pronounced central nose/chin structure, angular cheek sections, deep sculpting, sharp geometric transitions, and strong side contours. Do NOT make it a flat plate, box, or generic helmet. NO vents. NO extra holes. NO clamps. NO brackets. NO strap mounts. NO separate parts. The entire mask must be ONE continuous solid body. Use the photo for mounting geometry and proportions; use the written description for the exterior styling. Generate actual structured CAD geometry suitable for STEP/STL export, not a decorative mesh.

Parameters

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