The TP20 Touch Trigger Probe system offers a compact and unique design. Specifically, it allows a range of stylus configurations and extensions to access features on complex parts. It can also be adjusted to a 5-way or 6-way kinematic touch-trigger probe system.
The TP20 is comprised of a two-piece design, which includes the probe body and detachable stylus module(s). These are connected using a highly repeatable magnetic kinematic coupling, which provides ability to change stylus configurations (either manually or automatically) without the need for requalification.
The TP20 system is easily retrofitted and is compatible with existing touch trigger probe interfaces, extensions and adaptors. A set of probe extensions are also available and the stylus mounting thread accepts styli from the Renishaw M2 range.
https://youtu.be/3Ueaq3GZneA
The system components of the TP20 include the following:
- TP20 probe body
- TP20 probe module - seven variants allow optimisation to suit application
- MCR20 module changing rack - automatic operation
- MSR1 module storage rack - manual operation
- Suitable for interfacing with Renishaw's PI4-2, PI7-2 or PI200
| Sense directions | All modules except 6W 6W | ±X, ±Y, +Z ±X, ±Y, ±Z |
| Suitable interface | PI4-2, PI7-2, PI200, UCC | |
| Pre-travel variation | LF SF / EM1 / EM2 MF EF 6W | ±0.60 µm (± 0.000023 in) ±0.80 µm (± 0.000032 in) ±1.00 µm (± 0.000039 in) ±2.00 µm (± 0.000079 in) ±1.50 µm (±0.000058 in) |
| Unidirectional repeatability | LF / SF / EM1 / EM2 MF EF 6W | ±0.35 µm (± 0.000014 in) ±0.50 µm (± 0.000020 in) ±0.65 µm (± 0.000026 in) ±0.80 µm (± 0.000032 in) |
| Repeatability of stylus changing | MCR20 Manual | ±0.50 µm (± 0.000020 in) ±1.00µm (± 0.000040 in) |
| Stylus range | M2 | |
| Mounting method | M8 thread |
Probe Modules
A range of seven (application specific) probe modules are available for the TP20. Each of them are identified by coloured caps.
| Module |
| Application | Trigger forces | Stylus lengths |
| SF - Standard force |  | Suited to the majority of applications | XY: 0.08 N Z: 0.75 N Stylus: 10 mm | 10 - 50 mm GF |
| LF - Low force |  | Low trigger forces applications - e.g. rubber seals | XY: 0.055 N Z: 0.65 N Stylus: 10 mm | 10 - 30 mm |
| MF - Medium force |  | Where a higher trigger force than standard is required | XY: 0.1 N Z: 1.9 N Stylus: 25 mm | 10 - 60 mm |
| EF - Extended force |  | Large stylus assemblies or where vibration causes spurious 'air' triggers | XY: 0.1 N Z: 3.2N Stylus: 50 mm | 10 - 60 mm |
| 6W - 6-way |  | Measurement in the –Z direction - e.g. undercuts | XY: 0.14 N Z: 1.6N Stylus: 10 mm | 10 - 50 mm |
| EM1 STD - 50 mm extension | Majority of applications requiring a 50 mm extension | XY: 0.08 N Z: 0.75 N Stylus: 10 mm | 10 - 50 mm | |
| EM2 STD - 75 mm extension | Majority of applications requiring a 75 mm extension | XY: 0.08 N Z: 0.75 N Stylus: 10 mm | 10 - 50 mm |
Changing racks
The MCR20 probe module changing rack is designed to securely hold stored modules for rapid automatic changing. It is also meant to protect them from airborne contaminants within the working environment.
The MSR1 module storage rack safely holds up to six modules. It simplifies manual module changing and thus aids measurement productivity. The MSR1 can be mounted on the CMM table or on a vertical surface.