i bought a prusa i3 rework kit and the step sticks keep giving out on me i even bought some on ebay and the eventually just stop working.
any ideas?
please help

make sure they are plugged in the right direction.
with the potentiometer facing away from the power input of the ramps1.4

Not all drivers place the pot on that side of the board. Just look up the pinout and compare to your controller, you will get caught if you always place the pot away from something.

If you really want help, you are going to need to share what controller you are using and are you setting vRef on them?

whats the vref?
and could they be the wrong way because this says i should have them this way