3D dot printer and amplifier connection to Arduino mega and rump 1.4

Development Boards Arduino
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HI All,

I would like to build a 3D dot printer which will allow me to print dots on a plan surface.

Motor:

X: this motor will move the X axis of the stage.

Y:wo motors will move the y axis.

Z1: will hold the main printer head and move the head up and down

4th: will hold the ink holding syringe. and push the ink down.

I need a dispenser (amplifier) for the syringe to form the droplet of ink. which needs to connect to the arduino. this requires 3v to control board and Drive and 5v control amplifier .

I am using Arduino mega and rump 1.4

my question is: 1. how can I connect the the amplifier to the Arduino mega and rump 1.4.

  1. how can I turn off/on for each dot.

how can I get G-code for the whole setup.

I would appreciate your help.

Thanks

Apu