Noise still on Y or moves to X?
noise on Y
Did you check the mechanics as per @misken link?
Are laser guides and rollers clean?
.
.
- Remove both Y belts and run a job to check noise of both Y motors.
- Y belt dos not seem very tight and seems a little twisted.
- Check alignment with the toothed gear wheels.
.
Motor seems ok then. Do you feel comfortable to lower current of the stepper driver a bit if its getting hot as per @Aaron.F link also check micro-stepping?
i checked everything
all is clean
i noticed that while running test ,cutting or engraving,the Y motors about 4-5 minutes of starting ,stops for 1 second as if it catches something then runs for about another 4-5 minutes and does the same thing
You have to align and tight at least the left Y belt. But before that remove both Y belts and run the job. Post results.
.
New firmware here (although I believe the laser have mechanical issues):
i dont know how to do the calculation for Vref…driver resistor is R110…motor DC 2,5V 1,5A…please help me for the result…i have voltmeter…thanks
i dont know how to do te Vref calculation …driver resistor is R110…motor DC 2,5V 1A…please help me…i have voltmeter…thanks
Are you using the A4988 Step sticks?
They look like this:
Then, the formula is as follows:
VREF = I x 8 x Rsense
I is the motor current. let’s take 0.9 A to be save.
→ VREF = 0.9 A * 8 * 0.11 Ohm = 0.792 V
Please, take note of the Voltage as it is now for information.
1 Like
i dont know if i.m doing it right
1 Step Stick indicate 1,24…the next 1,76…last nothing 0.00…i tried turning the potentiometer in both direction and nothing changed on the voltmeter
i used this voltmeter
i used the GND next to the Zmotor slot…see te pic
i put black lead test on ”-” and red lead on Step sticks potentiometer
I’m not familiar with the TMC2225. You can use the formula in the spec sheet (And some algebra skills, which I don’t have) to calculate the correct VREF value.
The VREF of the second stepper - Y axis - is at 1.76V. This seems very high and could explain, why it fails after a few minutes of engraving. Try lowering it as @parsec suggested.
The Y axis has two motors. Are they connected to the X and Y ports on the board?
And the X axis is using the Z connector?
The 0.00V on the third step stick sounds bad. If this step stick is really the 2nd Y motor, the axis might still move but explains the noise you are hearing.
Always make sure, you plug out the power when you remove or insert the step sticks btw.
1 Like
i can buy another driver?..ex A4988 Step sticks? or DRV8825?
X axis use X connector and Y axis is connected to Y1 and Y2
Sure. I am happy with the TMC2209 or TMC2208. They are silent like the one you have.
A4988 is like the standard driver and cheaper.
Ah, I see! So, the Y stepper drives both motors:
From: MKS-DLC32/MKS-DLC32-main/doc/DLC32 wiring manual.pdf at main · makerbase-mks/MKS-DLC32 · GitHub
That would mean, you only only need two stepper drivers… I’m confused.
1 Y direct 2 Y reverse.
