Hi all, I've never correctly set my Vref, but never had any problems on both of my printers.
I was wondering, what the general experiences are with setting Vref, for me it has always been setting the Vref by hand, just feeling and listening to what the motors do and how the machine behaves.
On the second machine I didn't even have to re-adjust anything, it all went right in one go.
I ask this because I see a lot of people getting confused with Vref and become scared to adjust tiny potmeters on stepper drivers.
Never had overheated motors, no overheated steppers either, and no problems with the motors hanging on certain prints or skipping steps etc. So I really doubt if it's effective.
The only time I did have problems was when I calibrated the Vref to the exact calculated value, because I use 2.5Amp motor, so the stepper drivers are not even made to output the full current. This was with the first printer I created.
Also, I'm not sure yet about the oscillator settings on the A4988, I have it somewhere halfway, I had the feeling the step/mm quality would not be as consistent when I had turned the potmeter all the way up.
Any thought on that?
I was wondering, what the general experiences are with setting Vref, for me it has always been setting the Vref by hand, just feeling and listening to what the motors do and how the machine behaves.
On the second machine I didn't even have to re-adjust anything, it all went right in one go.
I ask this because I see a lot of people getting confused with Vref and become scared to adjust tiny potmeters on stepper drivers.
Never had overheated motors, no overheated steppers either, and no problems with the motors hanging on certain prints or skipping steps etc. So I really doubt if it's effective.
The only time I did have problems was when I calibrated the Vref to the exact calculated value, because I use 2.5Amp motor, so the stepper drivers are not even made to output the full current. This was with the first printer I created.
Also, I'm not sure yet about the oscillator settings on the A4988, I have it somewhere halfway, I had the feeling the step/mm quality would not be as consistent when I had turned the potmeter all the way up.
Any thought on that?