Z axis homing issue

[OnefinityCNC (Onefinity CNC Official ✅)]

Help! My Toolpath says 'Under' or 'Over" (BB controllers) OR 'Soft Alarm on AXIS" (Masso controllers)! (with videos)

While this FAQ was originally wrote for the Non-Elite Machines, the same principal applies to both. Over/under on non-elite controllers and soft alarm on elite controllers mean the same thing, so the below principals apply to all machines. Many new users to the Onefinity CNC often get the machine unboxed, assembled, and moving in a few minutes without ever needing to look at instructions. But then they home the machine and are alarmed when their screen looks like this: (Left picture is non-e…