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TS27R tool setting probe: Product basics
Achievable set-up tolerances
The tolerances to which tools can be set depend upon the atness and parallelism of the stylus tip setting.
A value of 5 µm (0.0002 in) front to back and side to side is easily achievable over the at portion of the
stylus tip, and 5 µm (0.0002 in) parallelism is easily achievable with the axes of a square tip stylus. This
setting accuracy is sufcient for the majority of tool setting applications.
Recommended rotating tool feedrates
Cutters should be rotated in reverse to the cutting direction.
First touch – machine spindle rev/min
Rev/min for the rst move against the probe stylus is calculated from a surface cutting speed of
60 m/min (197 ft/min).
Spindle speed should be maintained within the range 150 rev/min to 800 rev/min and relates to cutters of
Ø24 mm to Ø127 mm (Ø0.95 in to Ø5.0 in).
The surface cutting speed is not maintained if cutters smaller than Ø24 mm (Ø0.95) or larger than
Ø127 mm (Ø5.0 in) are used.
First touch – machine feedrate
The feedrate (F) is calculated as follows:
F = 0.16 × rev/min F units mm/min (diameter set)
F = 0.12 × rev/min F units mm/min (length set)
Second touch – machine feedrate
800 rev/min, 4 mm/min (0.16 in/min) feedrate.
Software routines
Software routines for tool setting are available from Renishaw for various machine controllers and are
described in the Probe software for machine tools – programs and features data sheet (Renishaw part no.
H-2000-2298).
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