About this 3D model

Error calculation model: The model printed, depending on which small cylinder can be perfectly inserted into the hole, determines how much compensation the current material needs. The round hole marked with 0 in the middle is 5mm in diameter, decreasing 0.1mm to the left and increasing 0.1mm to the right. The leftmost mark is the height error, 2 is 0.2mm, 4 is 0.4mm.