The first one is the standard x,y,z - 1" (25.4 mm) calibration cube . The second cube has the same outer dimensions but it has a 2° draft angle in the inside and will test ghosting aswell. Make sure to use a caliper (vernier) to measure after printing. Printer: CR10 Smart Pro Slicer: Cura 4.8 Bed Type: PEI FDM - PLA - 1.75mm Quality: Normal 0.8 mm wall thickness / 2 lines per wall 210° hotend / 60° bed 50 mm/s (for starters) Retraction enabled (picture for reference) Fan: 100% Bedplate adhesion: skirt No Support