Can't get stepper motor to turn July 14, 2015 09:03AM |
Registered: 9 years ago Posts: 445 |
Re: Can't get stepper motor to turn July 14, 2015 12:05PM |
Registered: 10 years ago Posts: 466 |
Re: Can't get stepper motor to turn July 15, 2015 02:57AM |
Registered: 8 years ago Posts: 5,232 |
Re: Can't get stepper motor to turn July 15, 2015 04:01AM |
Registered: 9 years ago Posts: 445 |
Re: Can't get stepper motor to turn July 15, 2015 06:28AM |
Registered: 8 years ago Posts: 5,232 |
Re: Can't get stepper motor to turn July 15, 2015 08:14AM |
Registered: 9 years ago Posts: 445 |
Quote
o_lampe
All you need is an multimeter for ohm-measure.
Find out, which of the 6? wires are the coils or only the centerpoints of the coils ( half the resistance )
Then you have 4 wires sorted out, representing two coils, which needs to be connected to the Ramps:
one coil to the inner two pins,
the other coil to the outer two pins.
If it still doesn´t run, switch around ONE of the coils.
When it runs, but in the wrong direction, use the firmware to invert direction.
Re: Can't get stepper motor to turn July 16, 2015 03:17PM |
Registered: 9 years ago Posts: 445 |
Re: Can't get stepper motor to turn July 16, 2015 03:39PM |
Registered: 10 years ago Posts: 14,672 |
Re: Can't get stepper motor to turn July 16, 2015 04:32PM |
Registered: 9 years ago Posts: 445 |
Quote
dc42
If it's a Nema 17 motor and the coils are 1.8 ohms each, then the rated current of the motor is much higher than 0.4A, probably more like 1,5A. You can also check how hot the motor is getting at 0.4A, because at the rated current it will almost certainly be too hot to touch for more than a second or two. If there is a part number on the motor, look up its specifications on the web.