Now let's put your NEMA-17 stepper motor onto the X-carriage.
We'll start by putting the pulley on the motor and using the set screws to hold it in place.
You'll see that the end of the pulley is flush with the end of the shaft on the motor.
These are tiny little screws so be gentle - it is easy to cross-thread them.
You don't need to get them too tight right now, we'll fine-tune the placement of the pulley later.
Now we're going to use three screws to mount the NEMA-17 to the extrusion.
You'll see there are access holes in the extrusion just for this purpose.
So I'm pushing a screw through the access hole to the other side.
You can also come through it from the side of the extrusion, if that's easier for you.
And you'll see that there are threads in the motor itself.
That's where we are going to put the screws into.
Try to orient your wires like I've done here.
This can be a tricky step, so it's kind of easier if you take the motor away from the extrusion for a second...
and just try to line up the screw with the threaded insert in the motor.
You want to leave this screw a little loose so that you can rotate the motor in order to get the other screws in.
Here I'm lining it up so I can see the threads through the access hole.
I'm carefully placing the next screw into the motor.
This can be a little tricky. It's much easier to mount the NEMA-23s.
Again, leave that screw a little bit loose so that you have some room to play for the third screw.
I'm coming in from the side with this one, just to show you that this is another way to start the screws for this motor.
And there is still an access hole on the back side to tighten it.
So I just kind of place it in the right spot, and now I'm going to put the wrench through the access hole to tighten it up.
Once you get all three screws in there, get them as tight as you can.