For what it's worth:
I found that my moving the power plugs for the steppers to "E0" one at a time I was able to calibrate the 3 steppers used by the Diamond hot end.
It should be mentioned that I have switched from Marlin 1.1.0-RC8 to Marlin 1.1.0-RC8-BugFix.
I was a little surprised in the different settings I got for the steppers. All 3 steppers are of the same model, same specifications, same vendor and purchased at the same time.
The steps needed are as follows. E0= 188.53, E1=173.00 and E2 = 180.00.
Each was tested at 100mm length.
I would have thought it would have been a little closer.
As I mentioned earlier I am using a RUMBA controller. The drivers are DRV8825's set 32 steps.
I am now wondering what factors could have influence over the settings.
Since all of the steppers were of the same specifications, I would expect that the steps would have been closer.
Next I looked at the extrusion hardware, all of the same type and teeth number.
Next I looked at the voltage setting of each of the 3 drivers. The voltage varied from 0.537 to 0.545VDC. I suppose that could make a difference but I'm not sure how much.
So I would like to here from anyone else whom may have done something like this.
I'm not even sure if it was worth doing. What do you think?
thanks.
I found that my moving the power plugs for the steppers to "E0" one at a time I was able to calibrate the 3 steppers used by the Diamond hot end.
It should be mentioned that I have switched from Marlin 1.1.0-RC8 to Marlin 1.1.0-RC8-BugFix.
I was a little surprised in the different settings I got for the steppers. All 3 steppers are of the same model, same specifications, same vendor and purchased at the same time.
The steps needed are as follows. E0= 188.53, E1=173.00 and E2 = 180.00.
Each was tested at 100mm length.
I would have thought it would have been a little closer.
As I mentioned earlier I am using a RUMBA controller. The drivers are DRV8825's set 32 steps.
I am now wondering what factors could have influence over the settings.
Since all of the steppers were of the same specifications, I would expect that the steps would have been closer.
Next I looked at the extrusion hardware, all of the same type and teeth number.
Next I looked at the voltage setting of each of the 3 drivers. The voltage varied from 0.537 to 0.545VDC. I suppose that could make a difference but I'm not sure how much.
So I would like to here from anyone else whom may have done something like this.
I'm not even sure if it was worth doing. What do you think?
thanks.