Visitor Pass Base Frame

A solid, minimal frame designed to house a standard 3D-printed visitor pass insert. The base acts as a rigid backing plate, featuring a recessed cavity with a slight continuous inner overhang. This tapered lip allows a flat insert to snap securely into place while printing entirely without supports.

• Overall Dimensions: 120 mm × 75 mm.
• Thickness: 2 mm solid floor with a 1.8 mm raised border (3.8 mm total height).
• Recess Size: 110 mm × 65 mm, providing roughly 0.2 mm clearance around a 109.6 mm × 64.6 mm insert.
• Retention: 0.2 mm continuous 45-degree internal chamfer at the top edge to lock the insert in place.
• Printability: Prints perfectly flat on the bed; no supports required.