Can I use 4 stepper motor and 2 servo with CNC shield v3.0? With grbl I can use all 4 steppers but other 2 servo doesn't appear in that software and I'm a beginner. I have the CNC shield in that images: [Pinout CNC shield] I hope someone can help me, if you can't i can buy another arduino to use …

Add this function to keep from running your servos beyond their stops. Set at 5° and 175°. void checkAngle(byte &angle) { if (angle > 175) { angle = 175; } if (angle < 5) { angle = 5; } Serial.println (angle); } Add to the servo functions like: if (val == 't') …

I've tried with posted code but it doesn't work. After that try I've writed a new code on my own along the lines of old code for servos. It works but stepper hasn't the strenght to move the arms. I use a power supply 24V 4A, is it enough? Now I can't post my code but in a few hours I'll post it. …

[image] mariorossi26088: I've tried with posted code but it doesn't work. "Does not work" is a fairly meaningless statement. What does not not work as expected by you? I tried @groundFungus ' sketch and it worked as I expected it to do.

[image] mariorossi26088: I've tried with posted code but it doesn't work. I tested the code on real hardware (Uno, CNC shield V3, 4 NEMA 17 steppers, 2 micro servos, external 12V power supply and external 5V power supply) before I posted the code. The code works as expected. So if the code …

I said it doesn't work because I load the code on Arduino and using tera term to send it the value arm doesn't move. I'll check all condition and I try again with groundFungus' code. I can try also with a 12V power supply but i think it's the same. Can be the Ampere the problem? I use that tutorial…

[image] mariorossi26088: Can be the Ampere the problem? How many steppers are trying to move at one time? Do you have a DMM (Digital MultiMeter)? Is the stepper motor supply voltage stable while the motor(s) are running? What is the supply voltage while the motor(s) are running? Where in …

I'm so sorry to disturb you so much. I also watched that video, I think it was good, I set 0.96 is correct? because 1.2x8x0.1= Vref 0.1 from R100 correct? Current limit 1.2A from datasheet https://www.youtube.com/watch?v=OpaUwWouyE0&ab_channel=MichaelKlements at 3.30 [image] groundFungus: W…

Sounds like you are doing things right. I am interested to see what the supply voltage does when the motors are powered up. What is the voltage before powering the steppers? What is the voltage after? Do the stepper motors and/or stepper drivers get hot?

Drivers get a bit hot, I think that hot it's normal during work. On Tera Term appear make sure "newline is enabled in serial monitor line endings" but after that when I press a key doesn't appear nothing, my english is so bad and I'm a beginner, now, that phrase has a particular meaning that sound l…

4 stepper and 2 servo with CNC shield

Other Hardware Motors, Mechanics, Power and CNC

mariorossi26088 April 26, 2022, 10:48pm 31

Thank you so much. Beautiful. Tomorrow I'll try it and I tell you if it work good, but it sounds so good, I think everything correct.
Again thank you very much.

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4 stepper and 2 servo with CNC shield

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