System information

SECTION FIVE - MISCELLANEOUS FUNCTIONS (M CODES)

Pocket Clear (M97)

M97 can be used for clearing pockets as well as clearing away material from islands. It can also

be used for finish passes on irregular pockets or islands. This command takes two parameters:

the number of passes to make and the cut width of each pass. The command must be within a

while-wend loop. The cut width is added or subtracted to the cutter radius and moves toward or

away from the part. Cutter comp must be on to use the pocket clear feature. If a compensated arc

intersection error for the modified tool radius occurs, a compensated line is substituted from the

arc start point to the arc end point.

Example:

G0 Z.1 Rapid to .1 above 0

D1 Load tool radius #1

P1=-.1 First Z depth

WHILE P1>-.3 Last Z depth =-.3

G41 G65 X1 Y2 Non-move cutter comp lead in

X1 Y1 Start point

G1 F10 Z[P1] Z down

G3 R.5 XC2.5 YC1 X2.5 Y .5

G1 X5

G65 X2 Y0 No-move cutter comp off

G40 Cutter comp off

P163=5 Make 5 passes

P164=.1 Pass width =.1

M97 Clear the Pocket

P1=P1-.1 Next Z depth

G0 Z.1 Rapid above part

WEND End while loop

316