Endstops don't work.

I just finished putting together the kit I purchased from MakerFarm.com, and started testing the motors. They seem to work fine, but the mechanical endstops I'm using don't seem to work. I have tested the endstops themselves with a multimeter, and they seem to work fine. I've tried inverting them in the firmware (Sprinter), but saw no change.

Specs:
I'm using RAMPS 1.4, with Sprinter and Pronterface. Attached are a couple of pictures of the set-up.

Please let me know if there is any important info I missed.

[img443.imageshack.us]

On the endstop the NC pin goes to GND pin on the ramps and C pin on the endstop goes to SIGNAL on the ramps!

It's that simple

Well, even though I tried that before, to no avail, it worked this time. Thanks for the help.

Edited 1 time(s). Last edit at 10/26/2012 10:09PM by Kris@USD.

Switches have no polarity, so reversing the contacts should not be expected to have an effect.

why are you replying to a week old thread that HAS been resolved?

To point out a technical inaccuracy that might otherwise serve to confuse and misdirect future readers.

Why are you offering information about technical subjects you obviously don't understand?