Setting Up On A CNC Shield v4.

This is happening on both shields, correct?

I assume for the video you swapped the motors, since the X-axis should have the Extruder motor and the Y-axis should have the selector connected (with my unmodified code).

Could you send me a video of this code running, but move the Y-axis driver to the Z, and plug the selector in there? If the drivers that you thought were bad work, and this happens on both shields, then you most likely received 2 faulty boards (unlikely), or there is a code issue (much more likely)

code:

#define EN        8       // stepper motor enable, low level effective

#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 motor control

#define Y_STP     3       //y axis, stepper motor control

#define Z_STP     4       //z axis, stepper motor control

/*

// Function: step   -control the direction and number of steps of the stepper motor

// Parameter: dir  -direction control, dirPin corresponds to DIR pin, stepperPin correspomds to 

step pin, steps is the number of steps.

// no return value

*/

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

{

  digitalWrite(dirPin, dir);

  delay(50);

  for (int i = 0; i < steps; i++) {

    digitalWrite(stepperPin, HIGH);

    delayMicroseconds(800);  

    digitalWrite(stepperPin, LOW);

    delayMicroseconds(800);  

  }

}

void setup(){// set the IO pins for the stepper motors as 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, 3200); // x axis motor rotates CCW for 1 circle, as in 200 steps

  step(false, Y_DIR, Y_STP, 3200); // y axis motor rotates CCW for 1 circle, as in 200 steps

  step(false, Z_DIR, Z_STP, 3200); // z axis motor rotates CCW for 1 circle, as in 200 steps

  delay(1000);

  step(true, X_DIR, X_STP, 3200); // X axis motor rotates CW for 1 circle, as in 200 steps

  step(true, Y_DIR, Y_STP, 3200); // y axis motor rotates CW for 1 circle, as in 200 steps

  step(true, Z_DIR, Z_STP, 3200); // z axis motor rotates CW for 1 circle, as in 200 steps

  delay(1000);

}

Yes on both shields. The test code seems fine. Is it normal for them to hum all the time...not sure if you can hear it in this video.

Ok, that makes sense, I will reprint those. And I did home the chameleon. So if I were to buy this servo, https://a.co/d/9c7kQmL, what buck boost should I buy with it, and is that a good enough servo?

Oh, make sure to reprint everything on the same print in PETG with .2 mm layer height and 100% infill. This is the kind of servo Bill recommends: https://www.amazon.com/Torque-Motors-Waterproof-Steering-Control/dp/B0DDKN9RS6/ref=slsr_d_dpds_fsdp4star_fa_xcat_cheapdynam_d_sccl_2_4/135-4448785-9319159?pd_rd_w=K5THO&content-id=amzn1.sym.189ba0e8-243a-408f-947d-77c5ac846d2e&pf_rd_p=189ba0e8-243a-408f-947d-77c5ac846d2e&pf_rd_r=8DKW5ZRK9SP2JSWR0323&pd_rd_wg=s3ftv&pd_rd_r=ba40394c-0911-475e-b176-9241d4adb27e&pd_rd_i=B073F92G2S&th=1\

Choose the 20 or 25 kg (preferably 25) with 180 degrees.

I do not know if the one you linked will work (or not work) so you choose that at your own discretion. As for a buck booster, you will need:

Buck Booster: https://www.amazon.com/dp/B081N6WWJS Power supply to wire adapter: https://www.amazon.com/Qaoquda-Connector-Terminal-Headphone-Converter/dp/B07JMY5XXT Power supply splitter: https://www.amazon.com/Splitter-Surveillance-Adapter-Y-Cable-Security/dp/B082Y1PQ6C

You will use this to split a wire of the 12v power supply, then convert the splitter to a wire terminal so you can connect it to the buck booster (which you will need to set to your servos highest voltage) which then can connect to your servo.

You will need to be careful while doing this, as I accidentally fried a cloned Arduino while attempting (due to user error). Side note for the servo: Depending on what your budget is, you could get both and see if they both work the same. My budget is very low, so I pretty much only bought the necessary components.

So I have everything now and my buck booster is set to 6.8 volts(what my servo is rated for). What wires get plugged into the buck booster and what wires go into my board from the servo? also what port does the wires go into my board?

It probably wasn't that, because then both drivers would be fried, not just one. I think it could be a faulty driver or incorrect cable/driver placement.

I think that he may have a bad stepper driver. The kit should have come with 3, so he can replace the (maybe) fried driver with the spare.

It's fine. Any help is appreciated! I would like to help him because I sold my chameleon unit to him, so I should help get his unit to work. After all, who wants to waste $155?

Since this problem isn't directly related to the chameleon, it may be worth posting about this on the Arduino forums. I have never seen this problem before, so I will have to do some more research into this.

If I switch the motor drivers, then the other motor doesn't work right

If you swap them and then the other one doesn't work, then it is definitely a fried driver. The video also looks like the driver is fried. Try swapping it in for the extra driver that would have been used for the Z-Axis. If that doesn't work, then replace it with the ones you ordered off ali (note: for the stepper drivers you don't have to buy keyestudio ones. You can buy the extremely cheap ones). If even those don't work, then we can modify the code to use the Z-Axis driver slot instead of the X. Other than that, it looks like it is working fine!

That is great! It looks like everything is working now. The last thing to do is reassembling the chameleon unit. if you click the switch, something different should appear on the Oled and the motors should move! I am pretty sure that all the hard parts with programming the board are over! Hope this project turns out well for you!

I never got it set up on my printer. I have the Ankermake M5C (garbage compared to more recent printers, is completely closed source, and you can't have custom firmware.) which was a pain to try and set up on because:

a) I cannot send direct gcode commands to it

b) it's closed source so it's quite hard to design parts for it, like a filament cutter.

c) I had some problems with my 3Dclippy, and I don't have the time to troubleshoot

In the end, I sold my unit to @ace6879 who probably will have an easier time than I did since he has an open-source printer that supports direct gcode commands. I am thinking of getting an Elegoo Centauri (not the carbon one) because it looks like a good machine with a good price, and it will have its own AMS clone (which will be revealed around June). Plus, even if their AMS clone doesn't get the best reviews, it has all the nifty features that are required for setting up a chameleon. Side question: Is the CNC Mainboard working?

Well at least the hardware is working :)

Is it working?

Yes, that is it, but you have the same pinout as me, you can simply copy this into Arduino IDE and skip the code modification:

Note: you cannot directly upload this into Arduino IDE, since it isn't a .ino file, and the website will not let me upload a .ino file, so you must copy and paste it.

Try this:

#define EN        8       // stepper motor enable, low level effective

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

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

#define Z_DIR     7       //zaxis, stepper motor direction control

#define X_STP     2       //x axis, stepper motor control

#define Y_STP     3       //y axis, stepper motor control

#define Z_STP     4       //z axis, stepper motor control

/*

// Function: step   -control the direction and number of steps of the stepper motor

// Parameter: dir  -direction control, dirPin corresponds to DIR pin, stepperPin corresponds to 

step pin, steps is the number of steps.

// no return value

*/

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

{

  digitalWrite(dirPin, dir);

  delay(50);

  for (int i = 0; i < steps; i++) {

    digitalWrite(stepperPin, HIGH);

    delayMicroseconds(800);  

    digitalWrite(stepperPin, LOW);

    delayMicroseconds(800);  

  }

}

void setup(){// set the IO pins for the stepper motors as 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, 3200); // x axis motor rotates CCW for 1 circle, as in 3200 steps

  step(false, Y_DIR, Y_STP, 3200); // y axis motor rotates CCW for 1 circle, as in 3200 steps

  step(false, Z_DIR, Z_STP, 3200); // z axis motor rotates CCW for 1 circle, as in 3200 steps

  delay(1000);

  step(true, X_DIR, X_STP, 3200); // X axis motor rotates CW for 1 circle, as in 3200 steps

  step(true, Y_DIR, Y_STP, 3200); // y axis motor rotates CW for 1 circle, as in 3200 steps

  step(true, Z_DIR, Z_STP, 3200); // z axis motor rotates CW for 1 circle, as in 3200 steps

  delay(1000);

}

This should work perfectly. The test code I sent you first had a fatal flaw. The stepping amount was set to 200, when it should have been 3200