Thanks for this first response.
In fact the noise is indeed from the stepper motor, it is an electronic noise from the engine itself.
What value should I measure and where should I measure it exactly?
For the heating of the engine, while being fed and remaining at the stop it is at the burning limit (I wanted to specify it in case the information would be useful).
That will just reverse the logic that enables the stepper. Effectively, you’re just turning them off.
Steppers do make noise and the pitch changes depending on different factors.
If it’s hot enough to burn your finger, there may be something wrong. Otherwise, unless you’re seeing an effect with the machine’s movement, it’s probably all normal. If you post a video, it will be easier to tell if it’s something to worry about.
thank you for your answer, I understand better the noise stop following the activation of $4.
Actually, I do not worry as long as traveling is no problem, I try to understand a phenomenon that I do not understand and for prudence I ask more experienced people what they think.
Tomorrow I will try to make a video (it is 02h10 AM in France at the moment when I speak).
For the temperature, I can leave my hand, but after a while it starts to burn the skin ^^
While I have no idea what’s going on with your machine, as @The_real_janderson said I will be happy to chat in French (not at 2am though ) to help figure this out if I can, you can PM me if you want to discuss this.
Once you post a video of the sound the motor is making, hopefully we’ll be able to tell you whether it’s the normal motor humming, or if something is wrong.
In the meantime:
If you have a way to measure the surface temperature of the motor, maybe I could compare it to mine (but it’s not supposed to get burning hot, so something must be wrong)
Does the noise happen if you just power-up the machine and leave it completely idle, or only when moving X ?
One experiment you could do, is swap the cables between your X axis and one of the other axis on your controller board: if the X motor is still hot & noisy it is probably faulty, while if the problem “moves” to the motor of the other axis you swapped, probably the X axis stepper driver on the controller board is failing. If you do this test, just power up the machine but don’t do the homing.
(answering in English so that everyone has a chance to participate in the discussion)
after listening to the video, personnally I can’t really tell whether this is above the normal humming sound, there is too much background/white noise in the recording.
it’s normal that the motor would be hot after leaving the machine idle for several hours: the stepper motors consume more power when idle than when moving (since they are actively holding a position during all that time), I would not be too worried about that as long as things work fine.
Let us know what happens once you do the swap test.
For video, the high-pitched noise that is heard is the whistling / buzzing of the engine, it is not a background noise.
I just tested by reversing the pins of the stepper motors, and by now they all make the hiss (or buzz).
I could not measure the temperature correctly, my laser thermometer has problems I feel, but here’s what I managed to get when the thermometer seemed to “work” properly:
x = 62°C
y1 (right) = 46°C
y2 (left) = 50°C
z = 59/60°C
Measurements made when the SO3 had been energized for some time in IDLE.
The SO3 works perfectly at the level of its displacements, tomorrow I receive my support for my AMB 1050 FME P, as well as an aluminum plate made to measure this support on the plate Z of the SO3, I would make a first test to see.
I also plan to share the plans of this famous aluminum plate in case it could help other people who want to put an AMB spindle.
maybe I am “worried” for nothing, time will tell
60°C on a motor that has been sitting idle for some time sounds quite normal to me, the stepper motors are designed to withstand that level of heat anyway.
I am surprised that by swapping two motors you would get the noise on all four stepper motors now ? Another test you could do is maybe unplug them all, then plug only one and power the machine, check noise, plug the second motor only and check, etc…
The high-pitched noise is the normal “humming” I was referring too earlier, usually it’s not very loud but is a bit surprising at first to many new Shapeoko users.
It sounds like this may all be normal after all, so as long as the machine works fine and the sound is bearable I would not worry about it.
Happy cutting, and don’t hesitate to report back on your first tests with the Kress!
.