Noob needs help:
Recieved a mendelmax from my dad who took a class to build it, and didn’t have time to play with it after.
After a few weeks of steady printing, I tried to clean up the wires and package everything nice. During this effort, I managed to kill the arduino 2560 by placing it on top of the power supply.
I received the replacement arduino today, connected everything, and loaded marlin onto it.
The LEDS all work, the temp sensor works, and the extruder heat works, but none of the motors will respond.
I have tried test firmware for ramps 1.4, and same issue-- the motors don’t respond.
Is it possible that I fried this part of the board in addition to the arduino, even though everything else on the board seems to work?
Is there something else silly I am missing/ overlooking as to why the motors won’t respond?
Yeah, you may have killed the ramps. Fortunately they are cheap:) FYI. The motors won’t work if your endstops aren’t connected correctly, if the printer thinks the endstops are closed, it won’t allow movement to avoid breaking something, check your end stop status using M119 command.
Reporting endstop status
x_max: open
y_max: open
z_max: open
I will replace the ramps board. Do you think I also need to replace the drivers?
Np. I assume the status of the min endstops was shown too? You should check to make sure they show closed when switched. Drivers probably Ok.
Tim-- no matter what they are reporting as “open”
Ah, so that may be your problem. Check your wiring, they may be going onto the wrong pins on the RAMPS board.
I’m pretty sure they are in the right spot… Maybe I am a total idiot. If I flip the pin header 180 and trip the sensor, it causes an error in the arduino, a surge on the USB port in the PC, and causes pronterface to disconnect
Pictures of the pins, please tell me if there is anything obviously wrong
Flipping the header on your switch shouldn’t do anything. I would say your ramps is toast
Nothing shows in your drive link
Not sure why the google drive isn’t sharing. Works for me even when I log off… In any case— I appreciate everyone’s help immensely!. I have ordered a new board
I believe the pictures show you are plugged into the min end stops, but your posted M119 output showed max values. I’ve seen this issue before selecting the wrong ramps in the marlin config, for instance using MOTHERBOARD 3 Instead of MOTHERBOARD 34.
@Eric_Gapinski – that at least got me on the right track. This printer was apparently only built with MAX end stops, which is also reflected in my build of Marlin. This is why I was only getting “max” values from M119.
I have checked, and I am using MOTHERBOARD 34
I moved the switch headers over to their correct spots (MAX not MIN), and now when I run M119, it does give me “triggered” when I hold down the respective switch!!! Success!
However, still no motors 
Yes… I can heat the hot end. End stops working
I have a hard time believing that a short would have taken out all of your motor drivers, it’s possible though. Have you uploaded this firmware as is to the previous Arduino, before things stopped working, or is this a new download?
If you have access to the previous firmware try that. There could be a configuration that you are missing in the new firmware.
I know… Unfortunately I dont have access to it. I am told what I have is exactly the same, but no way to know if it was modified. Also. I’ve downloaded a ramps 1.4 test firmware. Same problem, lights blink no motors