I Bough one of these motors KP4M2-008 to make tests on my makerfarm prusa i3. If it worked, I would buy some more, for my next machine... Finally I found the way how to plug those 5 wires stepper motor into a 4 wires ramps 1.4. but it is not strong enough. (I expected it beacause it is way smaller!) I tried it on my y axis. It looks like working well, but as soon as something goes against the movement of the heatbed, it jumps and the print is like crap. It might be strong enough for the z axis or the extruder I don't know. I also wonder if it is possible to raise the amps to make it stronger?
Here is the procedure I've done.
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.
4. Then I went like try and MISTAKES, but I finally found it...
The four little copper wires must be plugged and soldered with tin into 2 pairs. The one corresponding with the white plugs with the one coresponding with the green, and the one corresponding with the red plugs with the one corresponding with the brown. and put some electical tape.
5. Close your stepping motor making sure every wires is on the sides and the shaft turns freely.
Now you have a 4 wires stepper motor
You can use some other tuto to find how to plug it into your ramps, but
Here are my results: the way i pluged the 4 other wires
ramps. stepper optionnal: (my maker farm color code)
2b--------green------blue
2a--------white-------yellow
1a--------brown------green
1b--------red----------red[/s]
Sorry for my english mistakes, I used to speak french...
Pis on est là à tout écrire en anglais alors qu'on dirait qu'il y a juste chez accès électronique qu'on trouve ces moteurs!
Here is the procedure I've done.
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.
4. Then I went like try and MISTAKES, but I finally found it...
The four little copper wires must be plugged and soldered with tin into 2 pairs. The one corresponding with the white plugs with the one coresponding with the green, and the one corresponding with the red plugs with the one corresponding with the brown. and put some electical tape.
5. Close your stepping motor making sure every wires is on the sides and the shaft turns freely.
Now you have a 4 wires stepper motor
You can use some other tuto to find how to plug it into your ramps, but
Here are my results: the way i pluged the 4 other wires
ramps. stepper optionnal: (my maker farm color code)
2b--------green------blue
2a--------white-------yellow
1a--------brown------green
1b--------red----------red[/s]
Sorry for my english mistakes, I used to speak french...
Pis on est là à tout écrire en anglais alors qu'on dirait qu'il y a juste chez accès électronique qu'on trouve ces moteurs!