Incremental drill pgm.

[Janos]

Hey all,

I have a favor to ask of someone. I need a incremental drill program for a .079 drill going 1.625 deep and 2.100 deep. I plan on adding them as a local sub routine. First peck at 8x dia. second peck at 4x and the rest at 1x. I work for a shop that has FeatureCAM but for some reason it won't support the incremental cycle.

Thanks in advance
John

[extanker59]

OK, first off, I'm no macro guy. This is probably way longer than it needs to be. Maybe wait until one of those guys chime in? This will work if you can't wait.

%
O01112
(VAIABLE PECK DRILL)

G00 G17 G40 G49 G80 G90 G98


N7
G103 P15 (CANCEL LOOK AHEAD 15 LINES)
#101= 0 (START DRILL DEPTH)
#102= 0.015 (PECK AMOUNT)
#103= #101 + #102 (PECK + START)
#104= 1. (TOTAL DRILL DEPTH)
#105= 1. (Z CLEARANCE)
#106= 1.2 (FEEDRATE)

(3.6MM DRILL)
T7 M06
G00 G90 G55 X0 Y0 S900 M03
G43 H07 Z1. T8
M08
Z#105
G00 Z - #101
G01 Z - #103 F#106
G00 Z#105

N222
G103 P9
G04 P0.1
#101= #103 - 0.05
#103= #103 + #102
IF [ #103 GE #104 ] THEN #103= #104
G00 Z - #101
G01 Z - #103 F#106
G00 Z#105
IF [ #103 NE #104 ] GOTO222

M05
G00 Z1. M09
G53 Y0. Z0.

M30
%

[Janos]

when is comes to macros all I hear are clicks and buzzes. mabey some one can explain it to me. Thanks for the input

[extanker59]

I know what you mean. I briefly looked at the macro for the VQC probe. I stopped when my eyes started bleeding. (There was sobbing involved too but it's not important).

[rowbare]

I came across these videos earlier in the week. These aren't incremental but pretty impressive:

YouTube- Small Diameter Deep Hole Drilling

YouTube- Small Diameter Deep Hole Drilling

YouTube- Micro Drilling

YouTube- Micro Drilling

bob

[Janos]

Originally Posted by extanker59 OK, first off, I'm no macro guy. This is probably way longer than it needs to be. Maybe wait until one of those guys chime in? This will work if you can't wait. % O01112 (VAIABLE PECK DRILL) G00 G17 G40 G49 G80 G90 G98 N7 G103 P15 (CANCEL LOOK AHEAD 15 LINES) #101= 0 (START DRILL DEPTH) #102= 0.015 (PECK AMOUNT) #103= #101 + #102 (PECK + START) #104= 1. (TOTAL DRILL DEPTH) #105= 1. (Z CLEARANCE) #106= 1.2 (FEEDRATE) (3.6MM DRILL) T7 M06 G00 G90 G55 X0 Y0 S900 M03 G43 H07 Z1. T8 M08 Z#105 G00 Z - #101 G01 Z - #103 F#106 G00 Z#105 N222 G103 P9 G04 P0.1 #101= #103 - 0.05 #103= #103 + #102 IF [ #103 GE #104 ] THEN #103= #104 G00 Z - #101 G01 Z - #103 F#106 G00 Z#105 IF [ #103 NE #104 ] GOTO222 M05 G00 Z1. M09 G53 Y0. Z0. M30 %

Please explain. This looks like if I could get the hang of it. That it would be very useful. Do you use it in place of the regular canned cycle or make it a local sub?

[extanker59]

In this case, it's the whole program. You could easily make it just one tool call from N7 to the M30 (replace the M30 with M01) or it could be a sub. Your choice.
The way I get these things is to follow the program down until it gets to a variable, then reading in the notes what that variable is. I always put what the variable is in parenthesis- some don't but I like others to be able to follow along. And me too because after a short time I'm onto other things and I've completely forgotten my train of thought.