The TRANS Command [MLEPC]

The TRANS command is used to translate coordinates. This command is valid for all machine types. The following TRANS command functions are available:

Two translations can be in effect simultaneously. The second translation amount is specified using the TRANS/LAST format, which is identical in syntax and functionality to the primary translation (omit LAST).

\textbf{TRANS / } \big[ \textbf{ LAST}, \big] \; \ldots

The TRANS command may or may not have a cumulative effect depending on responses to QUEST. ICAM recommends that the same method be used for all post-processors at an installation. With cumulative translation, if one TRANS command translates all coordinates by 1 unit and a second TRANS command translates them by 2 units, the net effect is to translate all coordinates by 3 units. With non-cumulative translation, if one TRANS command translates all coordinates by 1 unit and a second TRANS command translates them by 2 post units, the net effect is to translate all coordinates by 2 units (i.e., the last translation specified).

Parametric TRANS Format

This command format affects only linear axes and requires them to be entered in a set order.

\textbf{TRANS / } \big[ \textbf{ LAST}, \big] \begin{bmatrix}\,\begin{array}{l} \textbf{ON} \\ \textbf{OFF} \end{array} \;,\, \end{bmatrix} \; a,b \,\big[,c \,\big]

The initial ON or OFF indicates whether the axes translations are being set to specific values or are being removed. If omitted, ON is assumed (i.e., axes translations are being applied).

The a, b and c scalar values specify in machine coordinates the new axis translations. Values must be coded when adding translations: Values must not be coded when removing them (i.e., OFF coded). The machine axes to which the three scalars are applied depends on the machine type and machining mode.

Machine

a

b

c

Horizontal lathe in turn mode

Z

X

na

Vertical lathe in turn mode

X

Z

na

Any lathe in mill mode

X

Y

Z

2 axis mill or punch press

X/U

Y/V

na

Other mills

X/U

Y/V

Z/W

Axis-Specific TRANS Format

This command format allows translations to be applied to one or more axes or removed individually by name. Translations applied to rotary axes will be added to (cumulative TRANS), or will replace (non-cumulative TRANS), those applied using the ROTABL command with no ROTREF coded.

\textbf{TRANS / } \big[ \textbf{ LAST}, \big] \begin{bmatrix}\,\begin{array}{l} \textbf{ON} \\ \textbf{OFF} \end{array} \;,\, \end{bmatrix} \;\; {\small \sim} \! \begin{pmatrix} , \begin{pmatrix}\begin{array}{l} \textbf{XAXIS} \\ \textbf{YAXIS} \\ \textbf{ZAXIS} \\ \textbf{UAXIS} \\ \textbf{VAXIS} \\ \textbf{WAXIS} \\ \textbf{QUILL} \\ \textbf{AAXIS} \\ \textbf{BAXIS} \\ \textbf{CAXIS} \\ \textbf{AAXIS},\textbf{TABLE} \\ \textbf{BAXIS},\textbf{TABLE} \\ \textbf{CAXIS},\textbf{TABLE} \\ \textbf{RAM} \big[ ,n \, \big] \end{array}\end{pmatrix} \begin{bmatrix} ,\! \begin{array}{l} \textbf{ON} \\ \textbf{OFF} \end{array} \, \end{bmatrix} \big[ ,\mathit{value} \, \big] \end{pmatrix}

The initial ON or OFF indicates whether the translations are being added or removed respectively. If omitted, ON is assumed. This can be overridden for any specific axis by explicitly coding an ON or OFF following the axis name.

See here for a table correlating axes name keywords with machine axes.

The scalar value must be coded if an axis translation is being applied; it must not be coded if the axis translation is being removed (i.e., OFF coded). The value specifies the translation amount to be applied to the axis represented by the axis specifier.

Applying and Removing Last Translation Values

This command format may be used to quickly remove, or reinstate translation amounts for a number of axes at one time.

\textbf{TRANS / } \big[ \textbf{ LAST}, \big] \begin{bmatrix}\,\begin{array}{l} \textbf{ON} \\ \textbf{OFF} \end{array}\,\end{bmatrix}

If TRANS/OFF is coded, the translation amounts currently applied to all axes will be removed. After having removed axis translations using a TRANS/OFF or TRANS/OFF,XAXIS,YAXIS… command, they may be reinstated automatically if TRANS/ON is coded.

Coding TRANS/LAST,OFF and TRANS/LAST,ON removes and reinstates secondary axis translations in the same manner.