Need Help!- Boss 9 G-code Help

[vipers95]

I have a Boss 9 , I am trying to cut a 1' hole in 3/8" plate with a 3/8 endmill. Tried my hand at g-code and it don't look pretty in fact it does not work. Can anyone write a simple g-code to cut a 1" hole in 3/8 plate using a 3/8 endmill. I already cut the center out using the 3/8 endmill. Thanks

I already tried to do a circle by hand it does not work!!

[machintek]

Try a G79, I think. Bridgeport had a very simple canned cycle which I believe was a G79. You did a rapid move to the center of the circle. Feed the Z down to where you want it. Then call up the G79. I believe all it required was the R for the radius that you wanted the cutter to do and a feedrate. Thus a 1 inch circle with a 3/8 endmill would look like:
G79R.3125F12.0
It will arc in the the circle, mill the circle and arc back out again. My favorite G code.

George

[KTD1]

This program assumes the center of the hole and top of the work piece is machine’s XYZ zero.
Call your tool and start your spindle.

G0 X0.0 Y0.0 Z0.1
G1 Z-0.375 F12.0
G1 R0.3125 A0.0 I0.0 J0.0
G3 A360.0 I0.0 J0.0
G1 X0.0 Y0.0
G0 Z0.1
G0 M2

I’ve been using the DX-32 (Boss 10) for over 15 years and never tried the G79, thanks George.
Will a Boss 9 take the G176 command? That’s one I use most everyday for holes.

[machintek]

I had a BOSS 9 but I used a MAC EZCAM with it. I know that the DX32 is a offshoot of the BOSS 9 which was a natural progressing from the BOSS 3. It did use a multitude of 3 digit G codes. Try MDI help. Type in the G code and a list comes up of what you need to put in. I have a programming manual at the office. When I get there, I can look it up.

George

[vipers95]

Thanks to all of you, I did get it with the G176 code. Tried to get the g79 but would not work. Thanks again to all.