Slot cutting ramp in and out Help

[trivette]

I have a taig cnc mill and I am trying to cut some slots/splines and a round shaft. I have mach 3 with wizards it does the ramp in but no ramp out I would like to be able to ramp out at same angle as the ramp in to give a uniform look. Any help is greatly appreciated.
Thanks again

[tfisher]

I've never used mach 3 so can't help you there but it's pretty easy to do it if you just write a program manually in g-code.

[trivette]

Can you show me an example?

[fordav11]

you don't give any sizes to show exactly what you're doing.
it may be easier if you post some of your existing program and someone can modify it

[trivette]

this is first few passes it ramps in and I need it to ramp out also


G0 X0 Y0
G1 Z0.0000 F30
X0.1908 Y0 Z-0.01
X3.5 Y0
G0 Z0.1
X0.1908 Y0
G0 Z 0.04
G1 Z-0.01
X0 Y0
X0.1908 Y0 Z-0.02
X3.5 Y0
G0 Z0.1
X0.1908 Y0
G0 Z 0.03
G1 Z-0.02
X0 Y0
X0.1908 Y0 Z-0.03
X3.5 Y0
G0 Z0.1
X0.1908 Y0
G0 Z 0.02
G1 Z-0.03
X0 Y0

[fordav11]

its pretty simple. just work out the difference between the start point in X and the ramp-in point in X and then add that to the X end point and feed up to the same Z point where you started.

G0 X0 Y0
G1 Z0.0000 F30
X0.1908 Y0 Z-0.01
X3.5 Y0
X3.6908 Z0
G0 Z0.1
X0.1908 Y0
G0 Z 0.04
G1 Z-0.01
X0 Y0
X0.1908 Y0 Z-0.02
X3.5 Y0
X3.6908 Z-0.01
G0 Z0.1
X0.1908 Y0
G0 Z 0.03
G1 Z-0.02
X0 Y0
X0.1908 Y0 Z-0.03
X3.5 Y0
X3.6908 Z-0.02
G0 Z0.1
X0.1908 Y0
G0 Z 0.02
G1 Z-0.03
X0 Y0

I assume this is what you want? I can't tell if X3.6908 would over-cut into your part because I don't have sizes/drawing/better info.
Maybe you want to ramp up to the X3.5 point? So in that case you would start ramping up before X3.5 like this....
G1 Z0
X0.1908 Z-0.01
X3.3092 (3.5 - 0.1908)
X3.5 Z0
G0 Z0.1

A few sizes or simple sketch would help and I could write you a complete working program.

If I were doing a square slot using ramping I would do something like this....

G0 X0 Y0
Z0.1
G1 Z0 F30
X3.5 Z-0.05
X0 Z-0.1
X3.5 Z-0.15
X0 Z-0.2
X3.5 Z-0.25
X0
G0 Z0.1