Hello everyone!

I want to drill some holes repeatablly

The part is steel axle surrounded by plastic and I want to drill through the plastic part with faster feedrate, than the steel center axle (this will save me time because I am talking about thousands of  holes)

Do you have any idea how the gcode should look like?

You could program 2 holes at the same X and Y location.

Drill the first hole at the correct depth for the plastic surface with the appropriate feedrate, rapid retract, rapid down at first depth and then change feed (steel)for second hole.

Thee are several way s to do it.

1. Use a drill cycle

G0 x0y0z0              ( Move to location)
G81  Z-1 F20 R0.0  ( Call  drill cycle, drill down thru the plastic to the steel level at Z-1 F20., retract to clear chips)
Z-2 F10 R-1           (rest R level to beginnig of steel and change Fto 10 drill through steel to Z-2. retract to -1)
G0 Z0                    (retract to ZO, clearZ )

X1Y0 Z-1 F20 R0   (next HOLE)
Z-2 F10 R-1
Z0

G80


OR Just code the hole by hand

G0 X0Y0
G1 Z-1 F20
 Z-2 F10
G0 Z0

X1Y0
G1 Z-1 F20
Z-2 F10
G0 Z0

Etc

(;-) TP

Thank you for your help.

This is what I am running now..
I have to experiment because I am new to this..

O5000 (D_DRILL_T1.TAP)
( MCV-OP ) (19-NOV-2008)
(SUBROUTINES: O2 .. )         
G90 G17
G80 G49 G40
G54
G91 G28
G90
N1 M6 T1
( TOOL -1- DRILL DIA 3.0 MM )
G90 G00 G40 G54
G43 H1 D31
S400 M3
Z20.
G0 X-120.
Y-35.
S1800 M3
M8
(------------------)
(D-DRILL-T1 - DRILL)
(------------------)
   X-120. Y-37. Z-2.
G98 G83 Z-25. R1. Q2. F100
    X-80.
    X-40.
    X0.
    X40.
    X80.
    X120.
G0 X-120.
   X-120. Y-37. Z-2.
G98 G83 Z-25. R1. Q2. F100
    X-80.
    X-40.
    X0.
    X40.
    X80.
    X120.
G0 X-120.
   X-120. Y-37. Z-2.

and so on..