Determining The Tool Tip Offset - Northern Digital Polaris Vicra User Manual

Note
The Polaris Vicra System still calculates the tool transformations in the coordinate system of the Position Sensor.
The NDI ToolBox software then calculates and reports the tool transformations with respect to the reference tool.
4.4

Determining the Tool Tip Offset

This section describes how to determine the
Once NDI ToolBox has calculated the tool tip offset, it can report the position of the tip of the tool,
instead of the position of the origin of the tool. See
To Set Up the System to Pivot
You will need a divot in which to rest the tool tip while you pivot the tool. The size and shape of the
divot must match the tool tip, to ensure that the tip does not move. For example, a probe with a
1 mm ball tip requires a hemispherical divot with a 1 mm diameter in which to pivot.
1. Set up the system to track tools, as described in
2. Click
3. For each loaded tool definition file, there is a tab in the bottom right section of the tool tracking
utility. Select the tab corresponding to the tool you want to pivot.
Polaris Vicra User Guide - Revision 2
Reference Tool
to load a tool definition file for the probe or pointer tool.
tool tip offset of a probe or pointer tool by pivoting.
"Tool Tip Offset" on page 35
"Getting Started: Tracking Tools" on page 41.
Using the Polaris Vicra System
for more details.
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