CNC Touch probe – 3D Finder
The 3D Finder touch probe is a mechanical probe used with CNC fabrication centers and CNC lathes. A touch probe such as this is used for various functions, for example, to quickly detect the position of the workpiece before machining, to perform adaptive machining, to scan, copy, and measure workpiece geometries (edges, holes, angles), and to perform quality control.
Note: This probe is active, i.e. it requires power. Probe tip diameter – 2-mm.
Touch Probe Touch applications and benefits:
- Fast zero-point acquisitions
- Workpiece digitization and copying
- Surface flatness acquisition
- Workpiece Scanning
- Quality control
|Sensing directions:||±X; ±Y; -Z|
|Max. Stylus overtravel||XT = 12°; Z = 5mm|
|Trigger force:||XY = 0.5 – 1 N;
Z = 2.5 N;
|Repeatability (unidirectional):||1 μm (max 200 mm/min probing rate)|
|Output function:||Electronic high-speed switch as normally closed contact|
|Switching current:||max. 30 mA|
|Functional notification:||switching point notification via LED|
|Cable length:||1 Meter (without connector)|
|Connecting shank:||Cylindrical 8 mm
Length: 20 mm
|Size without stylus:||Diameter: 39 mm
Height: 49 mm
|Size stylus:||Diameter: 8 mm
Height: 27 mm
|Ruby ball tip:||Diameter: 2 mm|
The 3-D Finder touch probe has a shank diameter of 8 mm, which means it can be clamped with an 8-mm ER collet.
It is constructed entirely of stainless steel.
Unlike inexpensive workpiece probes for hobby use, this probe features mechanical calibration to align the probe axis perfectly with the spindle axis.
This probe is “Active” and therefore requires a power supply. The connection with the machines is achieved using 4 wires: one being the power supply, either 12V or 24V, one GND, a third is the output signal, attached to the CNC controller input, and the fourth is configured as illustrated in the diagram depending whether you use an NPN or PNP control board input.
The switch output is normally closed, hence the probe is compatible with all control boards using normally closed input such as Mach3, Twintec Colibrì, QEM Rosetta, Heidenhain, Fanuc, OSAI, Siemens, and many others. A normally open version is available on request.