Simple program to face jaws with taper

fmoore23 said:

Hi All,

I need help with a program to face some jaws with a taper, so that it matches the tool rake/angle (image attached)

Now, I am in no way a CNC programmer, but Im trying to learn.

I have made a basic canned G72 program to face my jaws without the taper (see below)...I hope that its correct?, but my question is, Can I edit this program slightly to include the code to make the taper I need and how would it look?

Going on a Lynx 220 with Fanuc I-series controller.

Thanks in advance!

G28 u0 w0
G50 s2000
T200
G40 g99 g96 s250 t202 m3
G00 x5. z.5 m8
g72 w.005 r.003
g72 p10 q20 u0 w.003 f.005
N10 g00 z0.
G01 x0.
N20 g00 z.5 x5.
G70 p10 n20 f.002
G28 u0 w0
M9 m5 m30

View attachment 323053

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DouglasJRizzo said:

Onward - ALL CAPS ALL THE TIME when typing NC code.

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DouglasJRizzo said:

Former Doosan A/E here.
OK to answer the question, yes, you can machine a taper. Your programming isn't too far off either.
Onward - ALL CAPS ALL THE TIME when typing NC code.

So, your program to machine a tapered face jaw would look "something" like this:

O0001(JAW PROGRAM)
G50 S750(SPEED MAX CLAMP)
N10 G0 G40 G54 G99 T0202(TURNING TOOL)
X10. Z2.(SAFE POS)
G97 S400 M3(SPINDLE FWD)
X6.5Z.05(START POS)
G72 W.015
G72 P1 Q2 U0 W0 F.004
N1 G0 Z-.1
G1X6.
X.5 Z0
N2 Z.1
G0Z2.M9
G28U0(HOME X)
M5
G28W0(HOME Z)
M30
%

I usually avoid the G70 finishing when cutting jaws.
If you'd like the training manuals I used when I worked for Doosan let me know.

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