About this 3D model

Do you want to test your printer and check the first layer? Do you want to see if your printer prints the first layer correctly? Does auto z-offset work correctly? Bambulab says “ No More “Paper Method” A1 probes the bed with the nozzle to measure the absolute z-offset. No need to stick a paper as reference ” but it's true? here's the test for you. my A1mini failed (filament: 3dJAKE rPLA Orange)