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MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:00 pm
by redirect303
I just noticed now whilst printing, the X-Stepper motor gets extremely hot! (I measured 56 degrees C, compared to the Y motor which was 36 degrees C)
NOTE: The above is the EXTERNAL TEMPERATURE! - inside the motor casing could be considerably hotter!!
Also, printer is new (less than one week) !

Indeed the printed piece has a long rectangle shape, with longest side aligned on X, so I can expect more work for the motor on X direction.
Still, it worries me because I don't know the safe temperature range for this motor.

If the voltage is not right, I'd welcome some assistance here (never dealt with a printer before, I might require some extensive explanation)

Please advise.

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:14 pm
by William
Hi, you can try to turn the drive board voltage down to view
步进驱动版.png
步进驱动版.png (132.58 KiB) Viewed 630 times
Clockwise adjustment increases and counterclockwise decreases.

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:22 pm
by redirect303
What value should be the voltage and between which terminals to measure? I see there are 4 wires entering in the motor.

Thanks.

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:25 pm
by William
HI,The picture shows the driver board on the motherboard. You can try to adjust the voltage of the driver board to reduce the heat of the motor.

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:38 pm
by redirect303
I understand that...but HOW MUCH to reduce it? Which voltage (between which pins that voltage has to be measured)?
If i turn that potentiometer, i will not know how much I changed the voltage, unless I can measure it.

The diagram says voltage should be between 0.8 - 1.2V, but it doesn't say between which terminal it has to be measured. I see the black line drawing coming from the GND terminal, but the red line drawing goes to the potentiometer... I hope I am making sense.

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:42 pm
by William
Hi, the position measured is the position marked on the graph.

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 5:53 pm
by redirect303
I am not sure I understand what the diagram shows ... because the red line goes in the center of the potentiometer, which normally is just a bushing (the rotation point). So, if one terminal is the GND terminal, which is the other terminal?

Please check the attached image, it explains what I'm trying to say.
Stepper Driver_Notes.jpg
Stepper Driver_Notes.jpg (64.94 KiB) Viewed 623 times

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 6:05 pm
by William
Yes and you can try it. :D

Re: MeCreator 2 - X Motor very hot!

Posted: Sat Jul 06, 2019 9:39 pm
by redirect303
I'm sorry, this is not very helpful at all... In fact you either don't understand my question, or don't care much. Either way, your latest answer make no sense whatsoever. I am sorry that I had to say this :(

Re: MeCreator 2 - X Motor very hot!

Posted: Mon Jul 08, 2019 9:04 am
by William
Causes caused by overheating of the motor 1. The voltage of the drive board is too high;
                                             2. Insufficient heat dissipation;
                                             3. The temperature inside the house is higher than room temperature.