this is the Smart RAMPS board it's able to hold five native stepper drivers
being E0 E1 those are extruders so extruder one
extruder two then we have X Y & Z we have pins over here to connect to the
NEMA motors, so NEMA 17 is usually standard so the only interesting
exception here would be your Z which has two sets of pins for either side of your
steppers being two motors I want to talk about how this is inserted I'll cover
this in greater detail in a moment but for now what I want to talk about is the
micro step pin jumpers on the Smart RAMPS they no longer exist they're
hardwired to either do one sixteenth of a step or one thirty-second of a step so
in a moment I'll show you the a 4988 and how it works and you could probably
figure out from my example how the drv8825 will work from that if not ask
here's the top side of the a 4988 what I want to point out is the pin location
for the enable pin which is right here and in a moment I'll show you what it
looks like on the underside this is the underside of the a 4988 I want to show
you the enable pin once more this will have to be matched on the smart ramps
board for any one of the driver ports that you connect it to for the female
side that way you'll prevent it from actually being destroyed. Okay I
want to talk about the port for the X at the very bottom of the port right here
there is an en that is the pin right here where I'm hovering over that you
try and match up for your stepper drivers that I showed previously in the
video if you don't match up that pin you will have issues such as cooking your
board. Okay in order to place this correctly in your ex female ports for
the X stepper driver you have to line up your en pin with the en pin over here
and then apply a little bit of thumb pressure and that's how you install the
stepper driver now this will be the same for each and every one of these
configurations where you have to install a stepper driver some of them are
written quite well on the silkscreen to the board that would be the lettering
others are not so you might have to use a key figuring out the patterns that
match or you can just work from this end add your next one over here and your
next one over here in a moment I'll show you how to load the Marlin firmware on
the board for the stepper driver. Okay the first thing we want to do is open up
Adruino IDE then we want to go to the, "configuration.h", tab we want to
search on, "motherboard", want to verify that it's, "board_ramps_smart_EFB", so we have the correct
board next thing we want to do is search on, "default_axis".
And here's where the meat of the matter is for X Y Z E0 and
E1 we have our defined options below notice that the first value is 80 which
is for x that's for steps then we have 80 for y 4,000 for Z and 500 for the E0 so in
this case all we want to do is compile and upload so let's verify that we have
the correct board which is Adruino due programming port and it's on COM port 3
which is selected so we're gonna compile and upload. Okay to prep it to test it we
have to connect the four pins for the NEMA 17 stepper we then have to connect
the power from the power supply and then we have to plug it in now keep in mind
we're going to use the end stop to watch for the end of the access in a moment
I'll show you in pronterface how we actually test it. Okay the first thing we
want to do is open up pronterface we then want to connect to the motherboard
now what we want to do is press the home button and then click the end stop with our fingers, but before we do that let's verify the end stop is actually open
which it is so now we're going to click home for the x-axis and then with our
finger press the end stop okay in a moment what I'm gonna do is
I'm going to advance the x-axis by 10 to verify that it's working so as you can
see okay so I'm gonna advance by 10 and then I'm gonna advance by a hundred so
you can see it better so if you liked my video please press the like button and
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