Shapeoko Pro XXL Z axis problem

[JAH (John Horan)]

I have never had any problems with my Shapeoko Pro XXL after 3 years. After not being used for aboutthree months I went to initiae machine and the z axis moved in wrong direction and made grinding type noise until initiation failed and gave message that limit switch was not found.

Any ideas?

Thanks

[mhotchin (Michael Hotchin)]

Have you installed a new version of Carbide Motion, or used a different computer than before?

If you choose the wrong Z type, that can reverse the direction of travel.

The other thing is to check the wiring to the Z motor. Flakey wiring can sometime lead to unpredictable movement.

[gdon_2003 (Guy Donham)]

On an SO3 the HDZ and belt drive run in the opposite direction from a Z-Plus. Not sure about SO4. So run configuration to fix and then see. Usually the Z goes up to home but if it goes down it is usually the wrong Z selected.

[JAH (John Horan)]

Thank You Michael and Guy, Your awesome. Problem resolved I ended up reloading Carbide Motion and reconnecting all Z drive connections.

Thanks again!