The Orca Inverse Cube has been optimized by removing two-thirds of its volume while retaining the most essential one-third portion. The Orca Inverse Cube is a built-in test model in Orca Slicer, designed to evaluate various aspects of a printer's print quality. Unlike other test cubes, its unique feature lies in the inclusion of a threaded section, which allows for assembly tolerance testing and adjustments.

Since the original Orca Inverse Cube is relatively large at 30*30*30 mm, printing it consumes significant time and material. This 1/3 Orca Inverse Cube preserves the most critical sections, making it highly suitable for conducting material tolerance tests.