Next, in order to get rid of wiring mess and keep the electronics components organize I designed a custom PCB using the EasyEDA free online circuit design software. As an Amazon Associate I earn from qualifying purchases. Arduino Board ……………………… Amazon / Banggood / AliExpressĭisclosure: These are affiliate links.Power Jack…………….………….…… Amazon / Banggood / AliExpress.Micro Limit Switch ……….……… Amazon / Banggood / AliExpress. Stepper Motor – NEMA 17……… Amazon / Banggood / AliExpress.You can get the components needed for this project from the links below: There is also a limit switch for the bender which has a pull up resistor it’s connected to a digital pin of the Arduino board. Therefore, I decided to use a separate 5V voltage regulator, the LM7805, which is good enough to power the servo for this project. For powering the steppers and the whole project we will use 12V power supply with at least 3A of current rate.įor powering the servo, we could use the 5V coming from the Arduino, but the MG996R servo can be power hungry and the 5V voltage regulator of the Arduino might not be able to handle it. So the three stepper motors are controlled using the three DRV8825 stepper drivers.
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