TP8 (Indexable but Non Repeatable Probe Head)
The TP8 probe offers an entry level option for customers that require infrequent indexing of the probe and no indexing during the running of a measurement programme. The TP8 is supplied with two knuckle joints to allow infinite alignment of the probe to the feature being measured, but this alignment is non repeatable, meaning that the stylus will need to be requalified following each index. The TP8 probe accepts the M3 range of styli.
Dimensions
| Principal application | Robust universal DCC and manual CMMs. |
| Sense directions | 5-axis: ±X, ±Y, +Z |
| Unidirectional repeatability maximum (2σ μm) (at stylus tip) | 0.5 μm (0.00002 in) |
| Pre-travel variation 360° (XY plane) | ±1 μm (±0.00004 in) |
| Weight (without shank) | 95 g (3.36 oz) |
| Stylus range | M3 |
| Stylus force range (adjustable) | 0.11 N - 0.3 N |
| Stylus force (set by Renishaw) | 0.11 N - 0.13 N |
| Stylus overtravel (typical) |
XY plane: ±22° +Z axis: 5.5 mm (0.22 in) @ 0.11 N 2 mm (0.08 in) @ 0.3 N |
| Mounting method | Shank |
| Suitable interface | PI 7-3, PI 200-3, UCC |
Above data applies to test conditions as follows:
- Stylus length 21 mm (0.83 in)
- Stylus velocity 480 mm/min (1.57 ft/min)
- Stylus force 0.11 N to 0.13 N
- Ø4 mm ball
