feed rate issue

[rcbahn]

I am running wincnc on a shopsabre 7214, the machine and software are 4+ years old and this is my first cnc machine.

Last night I ran a program that begins as follows (more or less, I don't have the actual code in front of me, just going off memory):

G90
L110 T0
M3 S4000
G0 x0.0 y0.0 z0.1
G1 z-.224 F5
G1 z-.224 F10
X 9.485..... etc

when I load the program the feed down in the z is 5 ipm (same as specified inthe code) but the xy feed is 600 ipm. I am new to wincnc and g-code in general so please point out any totally obvious errors as well as other comments.
Thanks,
Ryan

[Butterknife]

Ryan,

First, it probably isn't 'L110 T0'. That means to set Wincnc to 'No Tool'.

Also, I think you should move your S4000 to another line. I think it will probably be ignored if it's on the same line as the M3. Wincnc likes commands to be on seperate lines.

Next, to set your feed rate of 300 for X,Y, insert a F300 before the first X or Y move.

Your Z has it's feed rate set on a Z move line. That's the correct way of doing that.

Hope this helps.

[rcbahn]

Thanks, let me make sure I understand correctly, I I want to feed at 10 ipm in the Z and then a cut in the X at 100 ipm that would look like this:

F10
G1 Z-.224
F100
G1 X5.0

correct?

[Butterknife]

Hey Ryan,

Incorrect. Here is your code.

F10
G1 Z-.224
F100
G1 X5.0

F10 would set any axis in the feed rate override group to 10 units of measure per minute. In general, that means X and Y.

To set an axis that isn't in the feed rate override group, put the feed rate on a line with a move..., like this:

G1 Z-.244 F10

You could also have put it on a line like this:

F10 Z

I hope this makes sense. You can download the manual from WinCNC. Go to Support and Manual.

[rcbahn]

Thanks. That clears it up, I am going to run a few programs tonight and see if I have a good handle on it.
-Ryan