Renishaw

Description[edit | edit source]

The Renishaw head is an electronic auto-detecting head for the Coordinate Measuring Machine (CMM). It is an add-on for the CMM which increases utility and simplifies operation (especially for a single operator).

Principle Uses[edit | edit source]

Simplifies CMM operation
Easy reorientation and angling
Selection of small probe-tips

Principles of operation[edit | edit source]

The Renishaw uses electronics to immediately detect tiny deflections of the probe (upon contact with a solid surface). It passes this detection to the CMM and records a hit. This eliminates the need for the operator to manually press the record/measure button.

Tutorial[edit | edit source]

Image	Step
	Checkout: The Renishaw tip is stored in the IEW office (GJ 113) locked tool-chest. Contact an IEW member and/or shop supervisor for access.
	Installation: Insert Renishaw head-shank into Z-axis and lock in place firmly against the bottom of the Z-axis rail and attach Din cables. Note: The machine should have been homed in the X, Y, and Z axes prior to performing this step. CAUTION: Failure to lock shank and adjust counterbalance can result in falling head and equipment damage
	Select and attach probe: Select and attach (screw in) the desired detector and probe tip.
	Enable auto-probe: Press the auto-probe button on the controls Note: The probe auto detect can be deactivated when navigating tight spaces to avoid accidental detection.
	Angle Adjustment: Loosen knob to choose direction and angle then re-tighten.
	Usage: Calibrate and use normally according to CMM use instructions Note: The probe requires re-calibration after any direction/angle change, but part alignments should stay constant.
	Shutdown: When not needed: unplug and store Renishaw head in storage box. Once complete: Return box to the IEW toolbox. Note: The Renishaw head is heavy compared to standard probes; its removal may cause the counterbalance to lift the Z-axis.