RAMPS1.4 controller suitable for 3d printers prusa Mendel.

Work with A4988 stepper driver, MEGA2560 controller and LCD display on 3d printer.

Note: 

1. Please make sure that the positive and negative pole is connected in the right position.  If they are reversed, the board might be burned.

2. Do not insert or pull out the motor and driver under the live wire. It may cause the board burned. And do not adjust the current during the motor working.  The right way to do is to cut off the power supply, pull out the motor, insert the power, adjust the potentiometer, measure the voltage on potentiometer till the voltage is same as expected voltage. Do not reversely insert the driver or it will burned the driver even burn the mainboard.

RAMPS1.4 controller connecting:

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