Tool change position
Tool change position is the machine position in which tool changing is performed. In SprutCAM you can specify a default tool change position for a whole job list and override this setting in individual operations as you need.
The tool change position is specified under the Approach/Return section in the operation Setup panel.
Defining a tool change position is not obligatory. If you not define a tool change position, then in the Simulation mode tool changing is not simulated. A tool is just appearing in the beginning of an actual operation and disappearing in the end of an operation. This setting is usually used for conventional 3 axis milling when there is no risk to damage a machine or a part while tool interchanging. However for complex machines like five axis milling centers and mill-turn machines specifying a valid tool change position is crucial for safe and time-efficient machining.
A tool change position is defined as a set of machine coordinates (e.g. at the above picture X1(0) Y1(0) Z1(0)...) in the machine coordinate system (G53). Those coordinates are the physical coordinates, not the coordinates of the tool tip in the workpiece coordinate system. So for a mill-turn machine those coordinates are the coordinates of the turret head center point.
For an actual operation you can select a tool change position from the list of the following options
1. From the previous operation - the tool change position is inherited from the previous operation.
2. From machine - the tool change position is inherited from the position specified under the machine node.
3. Custom. If you select this item, a tool change position dialog appears.
The tool change position dialog is used to define a tool change position as well as the tool change behaviour for an actual operation in an interactive mode. Here you can set
1. Mode (way of assignment) (From machine, From the previous operation and Custom).
2. Using of tool change position.
3. Tool change output mode.
4. Coordinates of the tool change position.
The coordinates are specified in the list. To define a tool change position you should check the boxes near the appropriate axes and set the values for the axes. You can set the axes coordinates both in the machine (G53) and the workpiece (G54) coordinate systems. The result is displayed on the screen. A convenient way to define a tool change position is to use the mouse wheel to change axes coordinates while looking at the result in the graphic view.
The default tool change position can be specified in the machine parameters panel
and in a machine configuration file under the <ToolChangeMachineState> tag.
<SCType ID="TMyMachine" type="AbstractMachine" Enabled="true">
<ToolChangeMachineState DefaultValue="X1(0) Y1(0) Z1(0) B180 A0 X2(0) Z2(0)"/>