Z axis dial, nema17 step shift indicator

For easily see if both nema 17 Z axis motors are in the same step phase. This way your bed level will be ok and you do not need to calibrate it if you do not realize that one nema moved one step or more.

You have 3 needles to choose from: without screw neither nut, for M2 screw and nut and for M3 screw and nut.