My 3D printer had its first test run last night. So far I need to replace the X axis stepper motor it has a bad connection inside of it somewhere as can be seen in this video on Youtube.
Here is a picture of the jumpers to convert the Ramps board to a printer 25 pin interface. I only connected to the pins that I needed for X, Y, and Z for Step, Direction and Enable, they are blue, green and yellow. The enables are all connected to ground. Then I also needed to connect to ground and 5 Volts, they are yellow and red, the top two connections..
Here is another video of the DIY 3D printer this time it is running with and Arduino Mega.
Here is a picture of the Ramps wiring. The heat bed is not wired up yet.
Here is the third video, my first extrusion attempt.
Here is what I got from my first attempt at making something. It was supposed to be a 8mm bearing support.