Reference Section > Touchcut G Code Reference > Notes on Using G-Codes:

Should usually be preceded by a T(n) (i.e. T1, T2 whichever is appropriate) to select the marker tool. Text maybe scaled and rotated (angle and height are modal settings which hold within program until changed). M30/M3/G1/G2/G3 commands may also be used to mark geometry.

Where an automatic gas console is being used on a plasma system that is able to perform marking special consideration is required. In these cases the correct process must be specified when tool is selected. This is critical because otherwise the part may be marked correctly, but then when the cutting commences the process will still be set to marking and instead of the path being cut it will be marked. The example below shows what should be done when the plasma is in the tool 1 position. This also contains a 'macro text' example.

T1(SURFACE 15A N2/N2)

G0X18.9481Y14.9676

G40

L3S10.R90.A6H1.5W0.(MACRO TEXT)

T1(SURFACE 15A N2/N2)

G0X26.0519Y45.0324

M30

G3X-20.I-10.

X20.I10.

T1(130A O2 Air)

G0X35.Y-60.

G41D21

M30

G1X-10.

X-70.

Y120.

X70.

Y-120.

Y-5.

If the same plasma system is being used for cutting only, then process selection is not required. Instead you can leave the selection to the operator. Be aware though, that is the program contains a process specifier, then any choice made by the operator will be overridden.