Ultimate tolerance calibration cube shape

thingiverse

It demands high precision to print this shape accurately. When printed with zero infill or under-extrusion, the side that tapers down to a thin edge will exhibit a significantly different length-to-width ratio compared to its counterpart (circular hole side). This design was created to serve as an alternative to the calibration cube. I've found that incorporating XYZ lettering typically present on sides provides more valuable information; therefore, I added more detail to this simple shape. The dimensions are 20 x 20 x 20mm, and it consumes less filament than the cube. By keeping the design uncomplicated, I aimed to make this shape a reliable indicator of a printer's performance. To achieve this, I incorporated several features into the design: Initial Orientation 45-degree angle (step up) 45-degree overhang 90-degree vertical by 5mm (for layer view) 2.5mm walls Decrease in wall thickness to zero edge thickness (top of square) 90-degree vertical rounded edge (step up) If Placed Upside-Down: Very low surface area for testing build plate adhesion 60-degree angle (step up) Roof surface quality viewing If Placed on the Side: 5mm bridge 8.35mm bridge 90-degree gradual overhang with increased mass load Center Square Bore: 2.4mm tolerance test (requires verification with vernier calipers) I hope this can be a helpful resource for someone! Thank you for taking the time to view it.