Keeping zero position

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Dave,

the biggest mistake you made is to sell your Three-axis Touch Probe.

On a Standard Series Onefinity CNC machine, there are two ways to get acceptable positioning repeatability: Either

1. Retrofitting inductive proximity sensors as limit switches or

2. using the Three-axis Touch Probe instead of inaccurate stall homing, either on a fixed block or jig, or on the workpiece itself, and subsequently only relying on the workpiece coordinates.

@Aiph5u

The insufficient accuracy of stall homing is irrelevant if you use a touch probe everytime and subsequently only rely on the workpiece coordinates. And reducing the use of the touch probe to only once per bootup period because you have a fixed jig saves time […]. Retrofitting inductive proximity sensors as limit switches brings accuracy if you want to rely on the absolute machine coordinates, without probing.

@Aiph5u

As Chris @ChrisM already mentioned above, using the 3-Axis Touch probe gives you more positioning repeatability than stall homing, either on a fixed block or jig, or at the workpiece itself.

@Aiph5u

The touch probe works perfectly with a spindle this way.

If I were in your place, I would order a Three-axis Touch Probe to be able to achieve much better positioning repeatability this way.