Me again...
I found an other way to plug the wires of this stepper motor, and like this, theorically, it is 4 times stronger. In fact, I have no way to test it but it is way stronger.
Ok, basically in the previous message, I did put 2 coils serial way. Wich adds the resistance. So instead of 70 ohm, I had 140 ohm.
I had the idea of plugging them parrallel way. This way The resistance is divided by 2, So instead of 70 ohm, I now have 35 ohm.
So if the resistance is twice lower, the amperage should be the double! makes a difference of a factor 4.
Right now I'm printing with one of them on my 7 axix and il works perfectly. (but is a little noisyer)
So the new way to plug them
I copied the procedure modifying the way to plug the wires...
1.First, open the motor. You will see that all the colored wires are pluged into a white rubber pipe to protect form shortcut. All wires are plugged to a little copper varnished wire exept the black one wich has 4.
2.Pull on the black one out the white pipe and cut the 4 little wires, than use sand paper to remove 1/4in of varnish at the end.
3.Use a ohmmeter to find the pairs of wires making a coil. Plug one side of your ohmmeter on one wire and try the 4 little ones to find wich of these fits with the this one. Use something to note youre results, and do the same with the 3 other wires colors. It should give you around 75 ohms.
Then,
plug the one that fitted with the white with the original green.
Plug the one that fitted with the green with the original White.
Plug the one that fitted with the brown with the original Red
Plug the one that fitted with the Red with the original Brown
Then plug them to your ramps`
Ramps stepper motor wire optionnal, my makerfarm color code
2b--------original green (+ fitted white)--------blue
2a--------original white (+ fitted green)(-------yellow
1a--------original brown (+ fitted red)----------green
1b--------original red (+ fitted brown)----------red[/s]
And then close your motor and plug it to your reprap.
Also, On the stepper motor driver, you have a screw, turn it clockwise to increase the strengh of the motor.
Like this you can use those 4$ motors on a reprap! And for my self, I will!
C'est vraiment pas cher!
I found an other way to plug the wires of this stepper motor, and like this, theorically, it is 4 times stronger. In fact, I have no way to test it but it is way stronger.
Ok, basically in the previous message, I did put 2 coils serial way. Wich adds the resistance. So instead of 70 ohm, I had 140 ohm.
I had the idea of plugging them parrallel way. This way The resistance is divided by 2, So instead of 70 ohm, I now have 35 ohm.
So if the resistance is twice lower, the amperage should be the double! makes a difference of a factor 4.
Right now I'm printing with one of them on my 7 axix and il works perfectly. (but is a little noisyer)
So the new way to plug them
I copied the procedure modifying the way to plug the wires...
1.First, open the motor. You will see that all the colored wires are pluged into a white rubber pipe to protect form shortcut. All wires are plugged to a little copper varnished wire exept the black one wich has 4.
2.Pull on the black one out the white pipe and cut the 4 little wires, than use sand paper to remove 1/4in of varnish at the end.
3.Use a ohmmeter to find the pairs of wires making a coil. Plug one side of your ohmmeter on one wire and try the 4 little ones to find wich of these fits with the this one. Use something to note youre results, and do the same with the 3 other wires colors. It should give you around 75 ohms.
Then,
plug the one that fitted with the white with the original green.
Plug the one that fitted with the green with the original White.
Plug the one that fitted with the brown with the original Red
Plug the one that fitted with the Red with the original Brown
Then plug them to your ramps`
Ramps stepper motor wire optionnal, my makerfarm color code
2b--------original green (+ fitted white)--------blue
2a--------original white (+ fitted green)(-------yellow
1a--------original brown (+ fitted red)----------green
1b--------original red (+ fitted brown)----------red[/s]
And then close your motor and plug it to your reprap.
Also, On the stepper motor driver, you have a screw, turn it clockwise to increase the strengh of the motor.
Like this you can use those 4$ motors on a reprap! And for my self, I will!
C'est vraiment pas cher!