Thanks for advice, my gantry concrete 3d printer design as shown below:-
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Mainboard - Duet2 wifi v1.04 32bit with 4.3" paneldue touch screen
Controller driver - External driver servo motor
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2 servo motor(x axis) running with gear rack
2 servo motor(z axis) running with DFU ball screw(3205)
1 servo motor(Y axis) running with gear rack
1 servo motor for screw cement extruder
Printing flow rate: 51.3ml/s
Printing speed: 200mm/s
Appreciate for helping, thanks.