I've recently a 4th axis on my machine... but It don't works alright .....
I make toolpad with visualmill 6.0... 

first a mill then top, then rotate 90 degrees, mill the left side, rotate 90 degrees again ....etc... etc..... so i mill the 4 sides.... and this works alright....

but then I want to finish, to let the A axis to rotate, and mill the outside...   but that did not go oke...  the A axis keep turning, and the Z-axis don't move alright....
it seemed like the A-axis goes  via wrong side to the next point .....?

somebody tell me , to turn on the "Shortest Rot"
but I can't found that?

It must be in the menu : "Config>State"

but I don;t have State by Config


so , is there somebody that Knows what can be the problem? and where i can found "Shortest Rot."?

sorry for the bad english!

Y0u will find it under General Config, lower center of the screen "Rotational". There are three settings and what each does is in the Mach Manual.
RICH

"Ang Short Rot on G0" is the same?

and is that my problem?

Don't know ....Mach implements the code given to it and the code needs to be correct for how Mach is configured.
RICH