So i have put together my printer. I have the board wired and jumpered and the firmware, although unmodified from it's original configuration, installed.
I can activate the printer with Pronterface, but that's were it becomes apparent that something is up.
The motors don't turn really turn. They mostly hum and vibrate. I don't know the exact cause and this is why:
They do actually turn a bit, and I've been conscious of the fact that these motors are not ideal from day one.
I'm still a little unconfident in my wiring.
The motors are 6 pin Unipolar nema 17 motors. On top of just figuring out how to wire up a motor, I had to figure out which pins to exclude. I took apart the extruder motor to look at the windings, which may come to bite me when i get to the point where I'm extruding, but that's tomorrow's fight.
And... in case this helps... The pins on the motors are as follows:
Pin1 is coupled to Pin2 and Pin3
Pin2 -- is a shared center tap--ie not used.
Pin3 is ocupled with Pin1 and Pin3
Pin4 is coupled with Pin5 and Pin6
Pin5 -- shared and not used....
Pin6 is coupled with Pin4 and Pin5
I'm using a ArduinoMega2560 board, with the board shield. the board came with push clips that are wired to correspond to the following pins:
Red 2B
Black 2A
Blue 1A
Purple 1B
The wiring diagram I was using, and that I assumed was made specifically for the kit, showed that red should correspond to Pin1 on the stepper motor, and the other colors would naturally follow the order they appear in the push clip. (This puts Pin1 to red, Pin3 to Black, Pin4 to blue, and Pin5 to Purple).
Even with all that lining up, I thought I still might have done the wiring wrong so i did take it apart and tried excluding Pin3, and Pin4 instead of pin2 and pin5, but that had worse results (didn't hum or spin).
After rewiring, I figured that the problem might be in the amount of current that's getting to the stepper motors. So I very gingerly increased the amount of current going to them. It actually does seem to have helped a little, but now the humming and vibrating is much more pronounced.
So I'm wondering, Is it common to have lots of stepper noise when you're adjusting your RAMPS?
Is there something perhaps wrong in the firmware? The Printer does seem to have inverted it's x and y axis, perhaps the 2a or 2b thing is not right? is there a way to check that? (I use Marlin with LCD support, but it's completely unmodified... i will change that at some point probably.)
Finally.. Is the wiring on the motors wrong? I'm actually kinda skeptical on this last point, since i pulled it apart, I can't possibly see a different configuration, but it is still being weird.
I can activate the printer with Pronterface, but that's were it becomes apparent that something is up.
The motors don't turn really turn. They mostly hum and vibrate. I don't know the exact cause and this is why:
They do actually turn a bit, and I've been conscious of the fact that these motors are not ideal from day one.
I'm still a little unconfident in my wiring.
The motors are 6 pin Unipolar nema 17 motors. On top of just figuring out how to wire up a motor, I had to figure out which pins to exclude. I took apart the extruder motor to look at the windings, which may come to bite me when i get to the point where I'm extruding, but that's tomorrow's fight.
And... in case this helps... The pins on the motors are as follows:
Pin1 is coupled to Pin2 and Pin3
Pin2 -- is a shared center tap--ie not used.
Pin3 is ocupled with Pin1 and Pin3
Pin4 is coupled with Pin5 and Pin6
Pin5 -- shared and not used....
Pin6 is coupled with Pin4 and Pin5
I'm using a ArduinoMega2560 board, with the board shield. the board came with push clips that are wired to correspond to the following pins:
Red 2B
Black 2A
Blue 1A
Purple 1B
The wiring diagram I was using, and that I assumed was made specifically for the kit, showed that red should correspond to Pin1 on the stepper motor, and the other colors would naturally follow the order they appear in the push clip. (This puts Pin1 to red, Pin3 to Black, Pin4 to blue, and Pin5 to Purple).
Even with all that lining up, I thought I still might have done the wiring wrong so i did take it apart and tried excluding Pin3, and Pin4 instead of pin2 and pin5, but that had worse results (didn't hum or spin).
After rewiring, I figured that the problem might be in the amount of current that's getting to the stepper motors. So I very gingerly increased the amount of current going to them. It actually does seem to have helped a little, but now the humming and vibrating is much more pronounced.
So I'm wondering, Is it common to have lots of stepper noise when you're adjusting your RAMPS?
Is there something perhaps wrong in the firmware? The Printer does seem to have inverted it's x and y axis, perhaps the 2a or 2b thing is not right? is there a way to check that? (I use Marlin with LCD support, but it's completely unmodified... i will change that at some point probably.)
Finally.. Is the wiring on the motors wrong? I'm actually kinda skeptical on this last point, since i pulled it apart, I can't possibly see a different configuration, but it is still being weird.