Hey guys, I'm having a problem with drilling operations. The drill will go to the proper x,y locations but it wont plunge, it just stays in the clearance plane and goes from location to location. I have included the g-code its a simple small bracket that has four holes set to drill .1" deep the material is .09" thick.

The code is generated from visual mill 6.0 and my machine is a Sherline 5400 inch. It will mill without any problems, for some reason the drill operations donâ€™t want to plunge.

N1 G00 G49 G40.1 G17 G80 G50 G90

N2 G20

N3 (Standard Drill )

N4 M6 T2

N5 M03 S1500

N6 G00 G43 H1 Z1

N7 G01 X0.3954 Y0.5986 Z0.1000 F3000.0

N8 G00

N9 G81 X0.3954 Y0.5986 Z-0.19 R0.01 L0.0

N10G80

N11 G00 Z0.1000

N12 G81 X0.7234 Y0.9266 Z-0.19 R0.01 L0.0

N13G80

N14 G00 Z0.1000

N15 G81 X0.7234 Y0.2706 Z-0.19 R0.01 L0.0

N16G80

N17 G00 Z0.1000

N18 G81 X1.0514 Y0.5986 Z-0.19 R0.01 L0.0

N19G80

N20 G00 Z0.1000

N21 M5 M9

N22 M30

Thanks for any help at all.