recently my Z axis has been acting up. when I use the Z home, as my axis touches the home switch and stops and i have to reset in order to move it. it used to touch the switch and then back off enough to release the switch (X & Y axis touch and move off slightly). i have checked my switches, wires and plugs, since i use plugs to connect everything. all seem to be OK. i think it may be my software but I am not sure how to check for proper fuction. my machine works fine cutting and engraving. my touch off pad and fuctions work as designed. i am at a point that i dont know what to do next.