This is what is happening to my motor. Any suggestions would help. 1. I have tried adjusting the trimpot. 2. Rewire the connector to match the one on the motherboard. 3. Anything else I found on the internet.
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Check the continuity of the wires on the cable. Sometimes, they are not crimped correctly. Another common fault is crossed wires. In either case, the easiest diagnostic test is to substitute another cable, but please note the color coding of this replacement wire to match the cable you replace.
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The Anet A8 stepper motor 4 lead cable need to be correct in colour arrangement:
- mother board end: black-green-blue-red and extrauder
- stepper motor end: black-red-green-blue.
I bought DIY RepRap Anet A8 3d printer which came with one of the red lead end not attached, so in order to complete the build I used another lead from the Kossel delta 3D printer which has a different colour arrangement from the Anet A8 and made the motor rock back and forth as in your video.
It seems each colour lead carries a specific current and there are many different 4 colour cables out there.
