20 mm Calibration Cube – X, Y, Z Axes with Engraved Letters

This is a 20 x 20 x 20 mm calibration cube designed for 3D printer calibration. Each axis is marked with a capital letter engraved (indented) into the corresponding face: Front face: Capital X (engraved) Right face: Capital Y (engraved) Top face: Capital Z (engraved) The engraved letters allow you to verify dimensional accuracy, axis orientation, and the printer’s performance with recessed details. The cube is a solid model with all edges exactly 20 mm—use it without scaling in your slicer for precise calibration. Features: Size: 20 x 20 x 20 mm Letters: X, Y, Z – capital, engraved Solid model for minimal filament usage No supports required Use this cube to easily test axis alignment, step accuracy, and fine detail reproduction.