BobCAM allows you to assign geometry to the tool holders in the library to aid in collision detection.
To assign a tool holder:
In the graphics area, draw the 2D shape of the holder.
At the position of the attachment point to the tool insert, place a circle.
Define the X- and Y-axis.

In the
CAM tree, click
to expand the
CAM Part folder. Right-click
Turning Tools and click Assign Tool Holder.
The Tools dialog box appears. Select the tool to which you want to assign the tool holder and click OK. The Select Insert/Holder Geometry Manager appears.
Click to select the outer geometry of the holder. The selections appear in the Selected Tool Insert/Holder Items box.

Click the Selected Tool Attachment Circle box, then click the corresponding sketch entity.

Click the X-Axis for Insert Geometry box, then click the corresponding sketch entity.

Click the Y-Axis for Insert Geometry box, then click the corresponding sketch entity.

Click
to finish assigning the tool holder.