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TP20

TP20 3-Axis System

Compact module changing touch-trigger probe, which allows the use of a range of stylus configurations and extensions to access features on complex parts.

The TP20 is a compact 5-way, or 6-way, kinematic touch-trigger probe system. The two-piece design, comprising probe body and detachable stylus module(s), connected using a highly repeatable magnetic kinematic coupling. This provides the facility to change stylus configurations either manually or automatically without the need for requalification of the stylus tips, thereby giving significant time savings in inspection routines.


Modules offering a range of trigger forces allow the probe performance to be best matched to the measurement task. A set of probe extensions is also available, as is a 6-way module. The stylus mounting thread accepts styli from the Renishaw M2 range.


The TP20 system is easily retrofitted and is compatible with existing touch trigger probe interfaces, extensions and adaptors.


System components

The system components are:

  • 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

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TP20 specification

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 (۪.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 is available and are identified by coloured caps.

Module   Application Trigger forces Stylus lengths
SF - Standard force TP20 SF module  Suited to the majority of applications

XY: 0.08 N

Z: 0.75 N

Stylus: 10 mm

10 - 50 mm GF
LF - Low force  TP20 LF module 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 TP20 MF module 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 TP20 EF module Large stylus assemblies or where vibration causes spurious 'air' triggers

XY: 0.1 N

Z: 3.2N

Stylus: 10 mm

10 - 60 mm
6W - 6-way TP20 6W module Measurement in the โ€“Z direction - e.g. undercuts

XY: 0.14 N

Z: 1.6N

Stylus:  10 mm

10 - 50 mm
EM1 STD - 50 mm extension TP20 EM1 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 TP20 EM2 module Majority of applications requiring a 75 mm extension

XY: 0.08 N

Z: 0.75 N

Stylus:  10 mm

10 - 50 mm

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