Toolholders are selected from the set of Defined toolholders in the Spindles and toolholders dialog box.
In general, if a tool holder that exactly matches your tool cannot be found, FeatureCAM will scale an existing toolholder to fit the tool. If you are just looking for an approximate toolholder shape, this scaling should create sufficient simulation of the holder.
Certain operations are associated with collets and others with the endmill holders. See Creating or modifying spindles for how to change this association.
Once the holder type is determined, tool selection is based solely on matching the diameter of the tool with the tool diameter parameter of the holder. For endmill holders, the holder with the smallest tool diameter that is greater than or equal to the tool’s actual diameter will be preferred. For collects, the tool’s diameter must be within min. and max. tool diameter of the collet. For both the endmill and collet holders, if a match cannot be made from the existing toolholders, an existing holder is scaled by adjusting the tool diameter and tip diameter.
Holders are associated with tools in the holders tab of the tool properties dialog box.