Arduino board turns off when connected to RAMPS

I am building my 3D printer but as the title states, my arduino board turns off everytime its connected to the ramps board. When its not connected to the RAMPS 1.4, I can program it and use it normally. The board is a arduino mega.

you probably have a short on your mega

most common cause for this is having your mechanical endstops plugged in backwards, this connect +5v to ground via the switch

second most likely is you have your stepper driver plugged in backwards. pololu modules and drv8825 modules go in opposite directions if your using the pot to orientate the device. Identify pins 1B, 1A, 2A and 2B make sure they are on the side of the stepper plugs

third is that there is a solder bridge on the ramps, inspect the board for solder bridging pins.

Edited 1 time(s). Last edit at 03/19/2016 10:05PM by Dust.

Im not technically inclinded and i have a cobblebot little monster. Can you tell me if this is correctly wired please?

That image is so tiny. There is not enough detail to seen nearly anything.

BUT

from what I can see there is no power going into the ramps.
The large green plug is the power plug. There are two parts to it the 5amp and the 11amp circuit.
The 12v 5amp part powers everything. Hotend, steppers, mega (when usb is disconnected)

There should be 4 thick wires going into this plug from the power supply. It looks like you only have 2 and they power the 11amp circuit, this only powers the headed bed.

Please see http://reprap.org/mediawiki/images/6/6d/Rampswire14.svg for how power is wired to that green plug

The endstops look ok, presuming they have the correct color coding.

The drivers look to be stepstick's and seem to be around the correct way. But the image is far to low resolution to be able to see if any pins are out by one.

Edited 3 time(s). Last edit at 03/20/2016 12:38AM by Dust.

[postimg.org]
I have all four wires goign in to the power and i can mesure 12v on top of the four screws on the green power plug by the way.
I also trued unplugging everything but the power and it didnt work

Edited 2 time(s). Last edit at 03/20/2016 01:46PM by BananaPh0ne.

Bought a new ramps board, ill see if it helps.

In the mean time

You should remove the driver modules and try the board without them. It wont be able to move the steppers, but this is just to see if the controller keeps going

That didnt work either

Stick the ramps on a scanner (remember those?) , take high res scan of the bottom and top

Make sure the pins on the bottom of the ramps board are not touching the Arduino where they should not. Example, the USB connector could hit ramps pins that stick through. Also the mounting screws can hit things.

I have isolated the power between the arduino and the RAMPS and now it works. However, whenever i plug in the endstops, it turns off

"most common cause for this is having your mechanical endstops plugged in backwards, this connect +5v to ground via the switch"

So take a good look at your endstops. They should have 2 or 3 pins
On two pin endstops they are wired to S and - pins of the ramps

On three pin endstop you need to check which two pins are connected to the switch

One common endstop is like this



The Sig wire must go to the S pin of the ramps

It looks good on your ramps photo, but maybe its wired backwards on the endstop end.

Please take a photo of your endstop with wires plugged in, and ramps as it currently is.

Edited 1 time(s). Last edit at 05/28/2016 01:37AM by Dust.