If you try and home your machine, and you find it only moves the 3 towers down, that is because somehow the machine lost it's Z height. It's most likely caused by accidentally clicking on the "Set Z=0 in the advanced configuration screen on your Orion. You'll need to connect your Orion to a computer using the USB connection to reset the machine's Z max height, then we can recalibrate the actual Z Height.
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