Preraise on z-home not working.

Jonathan9573

For the life of me I can’t get preraise on z-home to work. I have it enabled and set to 10 but it will not raise the z at all just heads straight to home. I did just rebuild the printer so I am having to figure a lot of things out and this is one I can’t find the answer to. Everything I see just says to enable it and set a distance.

Repetier

If you check the source you see conditions:

#if Z_HOME_DIR < 0

#if ZHOME_PRE_RAISE == 1

if (zaxis && Endstops::zProbe()) {

PrintLine::moveRelativeDistanceInSteps(0, 0, ZHOME_PRE_RAISE_DISTANCE * axisStepsPerMM[Z_AXIS], 0, homingFeedrate[Z_AXIS], true, true);

}

#elif ZHOME_PRE_RAISE == 2

if (zaxis) {

PrintLine::moveRelativeDistanceInSteps(0, 0, ZHOME_PRE_RAISE_DISTANCE * axisStepsPerMM[Z_AXIS], 0, homingFeedrate[Z_AXIS], true, true);

}

#endif

so you need z min homing and depending on ZHOME_PRE_RAISE being 1 or 2. 1 will only pre raise when z min is triggered. If it should always raise set it to 2. Raise distance is in ZHOME_PRE_RAISE_DISTANCE

Jonathan9573

Thank you, that was it. Just needed to change to option 2.