Mach3 feedrate CHANGES

I am having a problem with federate both in X and Z axis changing by Itself.
I have no F commands in the program. Only G00 and G01. No corresponding
feed commands.
Several times the machine has taken of with federate increasing.
I try to adjust using the feed icon with no response.
I have to hit the escape key of stop icon hopefully before I break an insert.
This is a conversion on a small Monarch turret chucker.
I am using gecko drives.
Last where do you change the default feed rate in the program?
Any help would be appreciated.
Thank you.

johnd

There is no default Feed Rate in your Program, it is what you set it to, with the F command

There is no magic here, when you have a G00 it will move at what your max is set for, in your machine control

After using a G00, if you have a G1 move, you need a ( F--. ) Feed at the end of that line, if not the control will try to move at the rapid that is set for the G00 move

So everytime it changes in the program from a rapid ( G00 ) to a feed ( G1 G2 G3 Etc ) you need to tell the control how fast you want those move's to be with an F20. at the end of the line

G00X20Y4.
G1 X25 Y10F20.