Hey guys,
I'm a university student as part of a group project to build a granule extruder 3D printer, but I am completely new to the wonderful worlds of 3D printing, arduinos and electronics.
Right now I'm developing the electronics for our project, but my problem is that I just can't get the NEMA 17 bipolar stepper motor to rotate/hum/anything. We are prototyping our granule extruder soon and for this we will only require the motion of a single motor to turn the extrusion screw. So what I've been trying to do is simply get this motor running!
The set up
[attachment 26254 Snapshot_20140204_13.jpg]
I have an Arduino Mega 2560 hooked up to a RAMPS 1.4 board. I have installed a single Pololu A4988 stepper driver upon the RAMPS board as shown:
[attachment 26257 Snapshot_20140204_16.PNG]
I have a 12VDC power supply as shown, which I found from a scrap inventory area in my department. I have tested it with a multimeter and it reads 12.24V and all is believed to be in working order:
[attachment 26259 Snapshot_20140204_20.jpg]
I have attached the 2.1mm DC connector to the Arduino below. I'm a little worried that this power supply, although it seems to be sufficient for the one required motor, isn't all that I need. I've seen many setups that use the 11A and 5A power connections on the RAMPS board, so my first question is is this power supply sufficient for my needs or have I overlooked something?:
[attachment 26258 Snapshot_20140204_19.PNG]
Moving on, I have attached the motor as follows. The second following picture shows the order of the wires that I am using if you cannot see clearly in the first following picture. I presume this is correctly done:
[attachment 26255 Snapshot_20140204_14.PNG]
[attachment 26256 Snapshot_20140204_15.PNG]
Comments
I have been uploading the RAMPSTestCode.pde into Arduino 1.0 to run the test (I'm using 1.0 instead of a later version because it seems to be more compatible with the Sprinter firmware). When I connect the motor up to the RAMPS board (before I have turned on any power to avoid any possibility of frying), and then turn on the juice simply nothing happens. And I really don't know where to go from here!
If anybody could help me out I would be very, very grateful!
Many thanks in advance,
Sam
I'm a university student as part of a group project to build a granule extruder 3D printer, but I am completely new to the wonderful worlds of 3D printing, arduinos and electronics.
Right now I'm developing the electronics for our project, but my problem is that I just can't get the NEMA 17 bipolar stepper motor to rotate/hum/anything. We are prototyping our granule extruder soon and for this we will only require the motion of a single motor to turn the extrusion screw. So what I've been trying to do is simply get this motor running!
The set up
[attachment 26254 Snapshot_20140204_13.jpg]
I have an Arduino Mega 2560 hooked up to a RAMPS 1.4 board. I have installed a single Pololu A4988 stepper driver upon the RAMPS board as shown:
[attachment 26257 Snapshot_20140204_16.PNG]
I have a 12VDC power supply as shown, which I found from a scrap inventory area in my department. I have tested it with a multimeter and it reads 12.24V and all is believed to be in working order:
[attachment 26259 Snapshot_20140204_20.jpg]
I have attached the 2.1mm DC connector to the Arduino below. I'm a little worried that this power supply, although it seems to be sufficient for the one required motor, isn't all that I need. I've seen many setups that use the 11A and 5A power connections on the RAMPS board, so my first question is is this power supply sufficient for my needs or have I overlooked something?:
[attachment 26258 Snapshot_20140204_19.PNG]
Moving on, I have attached the motor as follows. The second following picture shows the order of the wires that I am using if you cannot see clearly in the first following picture. I presume this is correctly done:
[attachment 26255 Snapshot_20140204_14.PNG]
[attachment 26256 Snapshot_20140204_15.PNG]
Comments
I have been uploading the RAMPSTestCode.pde into Arduino 1.0 to run the test (I'm using 1.0 instead of a later version because it seems to be more compatible with the Sprinter firmware). When I connect the motor up to the RAMPS board (before I have turned on any power to avoid any possibility of frying), and then turn on the juice simply nothing happens. And I really don't know where to go from here!
If anybody could help me out I would be very, very grateful!
Many thanks in advance,
Sam