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Hello to all, I would ask for an advice about setup for stone cutting machine project. Machine cutts big stone boulders to 2-10 cm thick plates with required precision of 0 to +1-3 mm depending of thickness. Costumer has a problem with x -axis movement (this movement defines the thickness of plates), because it is not precise enough. The setup i have conatins: -Induction motor for x-axis movement, -VFD for induction motor, -Incremental encoder for traveled distance feedback hooked to PLC. -Vision PLC . I have a few projects with only PLC or VFD setup, but first of this kind, so i would ask someone with more experience for advice how to achive precise positioning depending the given target value by operator and best setup for this project . The possible problems are inertia (the X -axis holds big hydraulic cutting motor) and also the lowest acceleration and deceleration value that i can set at VFD is 0.1sec. Supouse that I have to lower the speed of motor movement depending how close to target value it gets to achieve precise stop. What is the best possible way to do it through ladder ( PTO or simple math functions)? Any kind of help will be appreciated, Best regards,