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    Old Gmax 1.5 upgrade help

    I have an old Gmax 1.5 that was bought abt 5 years ago and the electronics boards gave out. I m in the process of upgrading to Ramps 1.4 . Ive replaced the dual extruder with a single extruder and am using the ramps smart controller my problem is if i try to home all axis the z axis just has a...