Keeping zero position

Hey Chris,

in fact you do the same as what @JDog does as mentioned above, which means to circumvent the unreliable stall homing by using the touch probe on a corner that is fixed on machine bed, thereby reducing the use of the touch probe to once per bootup period, and to achieve practically perfect repeatibility. Great!

But I agree to Derek @WaywardWoodworker that with retrofitted inductive proximity sensors you would not even need this probing once, but just entering any value you like and it would be perfectly reliable.

As you can see on the datasheet of a typical inductive proximity sensor (Omron E2B), the moment when it is triggered is very predictable and therefore brings accurate homing repeatability.


Source: Omron E2B Inductive Cylindrical Proximity Sensor Datasheet