CNC Touch Probe

The Onefinity touch probe connects to a dedicated port on the back of the controller using a Molex Micro-Fit 3.0 series connector. 

This specialized multi-pin plug ensures a secure, indexed connection that cannot be plugged in backward, maintaining the integrity of the electrical signal during probing.

Yes, it is possible to build a custom Z-axis probe by using a flat piece of conductive metal and wiring it to complete a circuit when touched by the bit. 

CNC hobbyists who build their own probes must enter the exact thickness of their custom plate into the controller settings to ensure the Z-height is calculated correctly.

To use the probe, place the metal block on the corner of your material and attach the magnetic ground lead to the router collet or bit. 

Using the controller’s interface, select the Probe XYZ or Probe Z routine, which prompts the machine to move the bit automatically until it touches the plate, setting your workspace zero with high accuracy.

A CNC touch probe works by completing an electrical circuit when the conductive router bit makes contact with the metal probe plate.

The Onefinity controller detects this contact instantly and records the precise coordinate, allowing the machine to define the exact location of the workpiece in 3D space.