Need Help!- prgramming question

[kling8]

I have a fadal 4020, I'm running a drilling and tapping program, 2 clamps hold down my work piece, and I have to raise my tools 1.5 inches to clear the clamps, I cant figure out how to rapid back down to .1 above my work piece, then up to 1.5, so I'm feeding it down at my feedrate, I've tried a few different things I know it is something simple but any help work be great.

It works but my cycle time is way to long..

kling

[David Ferguson]

G0 Z0.1

Assuming the top of your work is Z0.

[Dyad1]

Give this example a try

T1M6(CENTER DRILL
G0G90X1.Y1.
M3S2600M8
H1G0Z1.5 ( THIS IS IF YOUR Z 0 IS SET TO THE TOP OF PART
G98G81X1.Y1.R.1Z-.2F6.
G99X2.
G98X3.
X4.
G80
M5M9
G49G0Z0
T2M6( PECK DRILL
G0G90X1.Y1.
M3S2000.2M8 ( THE S2000.2 GIVES 2000 RPM AND FORCES THE MACHINE TO RUN IN HIGH RANGE
H2G0Z1.5
G98G83X1.Y1.R.1Z-1.5F6.Q.15
ECT.
YOU SET YOUR INITIAL PLANE AT 1.5 ABOVE WITH THE GOZ1.5
YOUR RAPID PLANE IS SET AT .1
THE G98 IN THE CYCLE RAPIDS FROM INITIAL PLANE TO R PLANE THEN DRILLS AND GOES BACK UP TO INITIAL PLANE.
G99 WILL RAPID DOWN FROM INITIAL PLANE TO R PLANE, DRILL AND THEN RETURN TO R PLANE ONLY.
YOU CAN ALTERNATE BETWEEN G98 AND G99 IN A PATTERN STAYING DOWN FOR SOME HOLES THEN JUMP OVER AN OBSTACLE THEN BACK DOWN.
EXPERIMENT A BIT CUTTING AIR AND YOU'LL GET THE IDEA.

[kling8]

Thanks Dyad1, and yes Z0 is the top of my part.
I just got in today, so I'm going to work through the program with your changes,
it makes sense, now just make it work right...

Thanks again.

kling8

[kling8]

Worked like a charm,
Thanks again..
kling8

[Combat28Mech]

Originally Posted by kling8 I have a fadal 4020, I'm running a drilling and tapping program, 2 clamps hold down my work piece, and I have to raise my tools 1.5 inches to clear the clamps, I cant figure out how to rapid back down to .1 above my work piece, then up to 1.5, so I'm feeding it down at my feedrate, I've tried a few different things I know it is something simple but any help work be great. It works but my cycle time is way to long.. kling

There are all many ways to do this can you use you can cycle and your G43 H1 line to z1. make that G43 H1 Z2. then use a G98 that should work or just use G01 and high feedrate to bring your drill down to z.1 and then use another G01 with your actual feed for your drill down to your z depth and then Rapid it back up to out of your hole