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Post Processor Drill Cycle

natedogg
Contributor

Post Processor Drill Cycle

natedogg
Contributor
Contributor

So I have an older Vickers Cininnati VMC and I am getting weird issues with the drill cycle that is related to my post proccessor taking the Feed Height value in the Heights tab and setting it to a negative number after it is post proccessed. I have it set to a -.02 depth as the target

 

With the Feed Height Field Disabled I get:

 

: (PGM, NAME="1001")
; T99 D=0.25 CR=0 TAPER=120DEG - ZMIN=-0.02 - SPOT DRILL
: G90 G40 G94
G17
G70
M26
; SPOT DRILL
:T99 M6
S5000 M3
H0
M8
G0 X0.745 Y-0.5165
Z0.6
G17
G0 Z0.2
G83 X0.745 Y-0.5165 Z-0.02 R0 W0.2 J11 K0.02 F13.3
X0.35 Y-0.7425 W0.2
G80
G0 Z0.6
M9
M26
G0 X0 Y0
M30
M2

 

 

When I set the Top Height to .2 I get the following:

 

: (PGM, NAME="1001")
; T99 D=0.25 CR=0 TAPER=120DEG - ZMIN=-0.02 - SPOT DRILL
: G90 G40 G94
G17
G70
M26
; SPOT DRILL
:T99 M6
S5000 M3
H0
M8
G0 X0.745 Y-0.5165
Z0.6
G17
G0 Z0.2
G83 X0.745 Y-0.5165 Z-0.22 R0.2 W0.2 J11 K0.02 F13.3
X0.35 Y-0.7425 W0.2
G80
G0 Z0.6
M9
M26
G0 X0 Y0
M30
M2

 

If I change to the Top Height field to .1

: (PGM, NAME="1001")
; T99 D=0.25 CR=0 TAPER=120DEG - ZMIN=-0.02 - SPOT DRILL
: G90 G40 G94
G17
G70
M26
; SPOT DRILL
:T99 M6
S5000 M3
H0
M8
G0 X0.745 Y-0.5165
Z0.6
G17
G0 Z0.2
G83 X0.745 Y-0.5165 Z-0.12 R0.1 W0.2 J11 K0.02 F13.3
X0.35 Y-0.7425 W0.2
G80
G0 Z0.6
M9
M26
G0 X0 Y0
M30
M2

Any help would be great in fixing this.

 

thanks

 

 

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natedogg
Contributor
Contributor

I assume this is part of the same issue and it affects the gcode when i set the Z0 at the bottom of the part. At the top of the gcode it shows the Z max depth as 1.1in but then scrolling down the posted gcode has it drilling to a Z-.03 which would be past the bottom of the part which is at Z0. All the milling operations work fine.

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