Lathe Variables

The $E Variable

$\textbf{{\char36}E}$

Thread lead (<=0:?)

Type: Numeric, Read/Write

The $E variable contains the thread lead in units per revolution (UPR). If the value is less than or equal to zero (0) then no thread lead has been defined. The thread lead is calculated as the thread pitch ($PITCH) multiplied by the number of thread starts ($MULTRD).

The $EV Variable

$\textbf{{\char36}EV}$

Thread variable lead (–ve:DECR, 0:no, +ve:INCR)

Type: Numeric, Read/Write

The $EV variable contains the thread variable lead in units per revolution (UPR). A negative value indicates a decreasing lead thread. A positive value indicates an increasing thread lead. A value of zero (0) indicates a constant lead thread. The thread variable lead is calculated as the thread variable pitch ($PITCHV) multiplied by the number of thread starts ($MULTRD).

The $HEAD Variable

$\textbf{{\char36}HEAD}$

Current lathe head (MAIN or SIDE)

Type: Minor Word, Read-only

The $HEAD variable indicates which lathe head is currently in effect. It has a value of MAIN if the main head is active and SIDE if the side head is active. Note that the value of this variable is a minor word, not a string value.

The $LTHMOD Variable

$\textbf{{\char36}LTHMOD}$

Lathe machining mode (0:TURN,1:MILL)

Type: Numeric, Read-only

The $LTHMOD variable is valid for C-axis lathes. It indicates the machining mode currently in effect.

The $MULTRD Variable

$\textbf{{\char36}MULTRD}$

Number of thread starts

Type: Numeric, Read/Write

The $MULTRD variable contains the number of thread starts.

The $PITCH Variable

$\textbf{{\char36}PITCH}$

Thread pitch

Type: Numeric, Read/Write

The $PITCH variable contains the thread pitch in units per revolution (UPR). If the value is less than or equal to zero (0) then no thread pitch has been defined.

The $PITCHV Variable

$\textbf{{\char36}PITCHV}$

Thread variable pitch

Type: Numeric, Read/Write

The $PITCHV variable contains the thread variable pitch in units per revolution (UPR). A negative value indicates a decreasing pitch thread. A positive value indicates an increasing pitch thread. A value of zero (0) indicates a constant pitch thread.

The $SHEAD Variable

$\textbf{{\char36}SHEAD}$

Merging lathe spindle controlled by (<1:? 1:MAIN 2:SIDE)

Type: Numeric, Read/Write

The $SHEAD variable indicates which lathe head is currently controlling the spindle for constant surface speed purposes. The value 1 represents the MAIN (upper) head and 2 represents the SIDE (lower) head.

The $SMDEV Variable

$\textbf{{\char36}SMDEV}\textbf{(}\mathit{index}\textbf{)}$

Delmia milling spindle device ID

Type: Numeric, Read/Write

The $SMDEV array variable defines the Delmia device ID associated with the milling spindle. All milling-spindle simulation commands are directed to this device ID.

The $SMID Variable

$\textbf{{\char36}SMID}$

Lathe milling spindle ID

Type: Numeric, Read-only

The $SMID variable contains the current lathe milling spindle ID. The ID number of the various available spindles are defined in the QUEST Machine Description / Spindle section “Spindle ID” questions. If 0 (zero) the milling spindle is controlled by CODE_SPINDLE_function codes; otherwise the milling spindle is controlled by CODE_SPINDLEnn_function codes where nn is the milling spindle ID.

The $SPINDLE Variable

$\textbf{{\char36}SPINDLE}$

Current lathe spindle active

Type: Minor Word, Read/Write

The $SPINDLE variable defines the current active lathe spindle. It has a value of FRONT if the main spindle is being controlled. It has a value of REAR if the sub-spindle is being controlled.

The $STDEV Variable

$\textbf{{\char36}STDEV}\textbf{(}\mathit{index}\textbf{)}$

Delmia lathe turning spindle device ID

Type: Numeric, Read/Write

The $STDEV array variable defines the Delmia device ID associated with the turning spindle. All turning-spindle simulation commands are directed to this device ID.

The $STID Variable

$\textbf{{\char36}STID}$

Lathe turning spindle ID

Type: Numeric, Read-only

The $STID variable contains the current lathe turning spindle ID. The ID number of the various available spindles are defined in the QUEST Machine Description / Spindle section “Spindle ID” questions. If 0 (zero) the turning spindle is controlled by CODE_SPINDLE_function codes; otherwise the turning spindle is controlled by CODE_SPINDLEnn_function codes where nn is the turning spindle ID.

The $XDIAM Variable

$\textbf{{\char36}XDIAM}$

True if the X axis is in diameter mode

Type: Logical, Read/Write

The $XDIAM variable tracks the radius vs. diameter state of the X axis. The default state is as defined in QUEST. The current state can be changed by setting the $XDIAM system variable to $FALSE for radius mode and $TRUE for diameter mode.