CNC Shield v3 Engraving Machine 3D Printer with 4pcs A4988 Driver Expansion BoardCNC Shield v3 Engraving Machine 3D Printer with 4pcs A4988 Driver Expansion BoardCNC Shield v3 Engraving Machine 3D Printer with 4pcs A4988 Driver Expansion Board

CNC Shield v3 Engraving Machine 3D Printer with 4pcs A4988 Driver Expansion Board

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Product Description

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   This expansion board as a driver expansion board, can be used for engraving machines, 3D printers.

   It is a total of four slots, can drive four A4988 stepper motor. Each road stepper motors only need two IO ports. In other words, six IO ports can be well managed three stepper motors. Very convenient to use.

   e.g.UNO module IO port correspondence introduction:

   IO corresponding figure above

   UNO Expansion Board

   8 : EN ( stepper motor driver enable , active low )

   7 : Z.DIR (Z -axis direction control )

   6 : Y.DIR (Y -axis direction control )

   5 : X.DIR (X -axis direction control )

   4 : Z.STEP (Z -axis stepper control )

   3 : Y.STEP (Y -axis stepper control )

   2 : X.STEP (X -axis stepper control )

   / / The following is a simple stepper motor control procedures,

   # define EN 8 / / stepper motor enable , active low

   # define X_DIR 5 / / X -axis stepper motor direction control

   # define Y_DIR 6 / / y -axis stepper motor direction control

   # define Z_DIR 7 / / z axis stepper motor direction control

   # define X_STP 2 / / x -axis stepper control

   # define Y_STP 3 / / y -axis stepper control

   # define Z_STP 4 / / z -axis stepper control

   / *

   / / Function : step . function: to control the direction of the stepper motor , the number of steps .

   / / Parameters : dir direction control , dirPin corresponding stepper motor DIR pin , stepperPin corresponding stepper motor ” step ” pin , Step number of step of no return value.

   * /

   void step (boolean dir, byte dirPin, byte stepperPin, int steps)

   {

   digitalWrite (dirPin, dir);

   delay (50);

   for (int i = 0; i

   digitalWrite (stepperPin, HIGH);

   delayMicroseconds (800);

   digitalWrite (stepperPin, LOW);

   delayMicroseconds (800);

   }

   }

   void setup () {/ / The stepper motor used in the IO pin is set to output

   pinMode (X_DIR, OUTPUT); pinMode (X_STP, OUTPUT);

   pinMode (Y_DIR, OUTPUT); pinMode (Y_STP, OUTPUT);

   pinMode (Z_DIR, OUTPUT); pinMode (Z_STP, OUTPUT);

   pinMode (EN, OUTPUT);

   digitalWrite (EN, LOW);

   }

   void loop () {

   step (false, X_DIR, X_STP, 200); / / X axis motor reverse 1 ring, the 200 step is a circle.

   step (false, Y_DIR, Y_STP, 200); / / y axis motor reverse 1 ring, the 200 step is a circle.

   step (false, Z_DIR, Z_STP, 200); / / z axis motor reverse 1 ring, the 200 step is a circle.

   delay (1000);

   step (true, X_DIR, X_STP, 200); / / X axis motor forward 1 laps, the 200 step is a circle.

   step (true, Y_DIR, Y_STP, 200); / / y axis motor forward 1 laps, the 200 step is a circle.

   step (true, Z_DIR, Z_STP, 200); / / z axis motor forward 1 laps, the 200 step is a circle.

   delay (1000);

   }

   Note: When inserting the A4988 module, must be careful not to insert opposite. Stepper motor wiring as follows:

   2A, 2B is a group (red, green), 1A, 1B is a group (blue, yellow), if want to change direction, can be change the position of one group , for example 2A, 2B mutually exchanged.

aeProduct.getSubject()

   1Pcs V3 Engraving Machine

   4Pcs A4988 Stepper Motor Driver

   4Pcs Heatsink

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We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

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We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
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Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

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If you have any other questions, please contact us and we will do our best to help you out.

REFUNDS & RETURNS POLICY

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If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

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*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

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