This is a recreation of a CNC machine I made, trying to understand how they work and how I can reproduce the logic that keeps the gantry, carriage, and device within bounds. The actual CNC machine uses servos to move and sensors at the limits to determine absolute position. In Unity, I set up collision zones acting as digital sensors and have each "sensor" call a public method that informs the table manager when an axis has reached its max or min bounds.