This is the Arduino Mega 2560 This is the RAMPS 1.4 This is what you're going to use for a 3d printer to connect it You're going to connect to the female ports with the male ports on the bottom of the ramps To do that it is kind of simple going to line up your pins and use a little bit of thumb pressure To make sure all it is mounted correctly When you want to load software on your Arduino you're gonna use this, end of the USB cable and connect it right here Then you are going use the other end on your computer, on your USB port. Let me describe the a couple of things on the board for you here we have our two extruders We have E1 and E0 This is the port for the motor for E1 here is the E0 Then we have our end stops from here To here, this is X-Min this is Y-Min or excuse me this is X-Max this is Y-Min This is Y-Max This is Z-Min and this is Z-Max Then you have your thermistor pins here there is three sets the first set being these is ... it's a thermistor 0 thermistor one thermistor two normally you would use thermistor zero for your extruder to monitor the temperature the second set is usually used for your print bed and the third set is extra that you can use for other things sometimes Then you have your stepper for your Z-Axis there are two ports for your motors Then you have your Y which has one port for your motor and then you have your X which has one port for your motor over here you have two pins that you use for your fan The side being positive this side being negative you, have your PSU port this is used for an on/off switch i believe and there are three pins here then you have your power reset pin and Then you have your Servo pins this is an auxiliary set of pins this is auxiliary 1 this is auxiliary 2 , this is auxiliary 3, This is auxiliary 4 over here we have our power pins that we use for our extruder which would be D-10 this is the negative side this is the positive side then you can use the next set of pins for either fans or you can use them for your heat bed that will go into a little bit later this is the actual power supply that connects to your port to power everything this power supply I'm going to show you with examples using a 12 volt power supply it can do 24 volt, but that is more advanced We also have some pins that I wanted to show you these are your I2C pins And you also have SPI pins on auxiliary 3 Okay if the Arduino over here with the RAMPS on it we have the connector that we are going connect to the computer now you should hear a beep when it connects if you do not it might mean that your driver software is not loaded this is a windows-based machine so you get a blinking light saying that it is actually connected Okay, for the first thing that we are going do we are going go to our marlin folder Inside the Marlin folder the quickest way to get to your marlin File start is hit the letter, 'm', then you want to click on the Marlin.ino? As soon as it opens What we're going to do is figure out a couple of simple things first being our USB connection So here's what we're going, to do we're going, to go over to tools Go to ports It appears to be on COM 3, so we check that off Now, we need to pick the correct device in this case I already had two chosen But if you need to choose it you can choose it through here and Then the subtype which is the 2560 Now, see how we're not doing much with this particular configuration all i'm trying to show you how to do is load it To load the firmware You are going hit the upload button and what will occur is it is going to compile first to make sure there is no errors and Then it is going upload, to the device so watch the taskbar in the middle of the screen and right now what it is doing is it is compiling the solution file And now it is uploading it to the Arduino MEGA 2560 if you liked my video Please hit the like button and subscribe if you enjoy these i will try and do with at least one a week and Thank You