At the time, I copied posted code and ran it on Haas ST30SSY without changing a single character.
So now I am curious as to when it hangs up on your machine.
Are you using G84 for the first time ever ?, is it an option on machine ?, even old SL20 has G84 option.
If you run graphics simulation on control, does it go thru, if it passes simulation in machine control it should run.
If not, run simulation in single block and note at what point it hangs up, any alarm messages, illegal code, best guess .......... wrong parameter settings.
Typically, in manually generated code, I position tool prior to G84 block and don't use R function, no clamps or other obstructions to jump over.
After tapping, tool returns to starting point ( Z.25 ).
Positioning of X axis prior to G84 or withing G84 cycle should not matter so I am at loss as to what is causing your machine to hang up.
Anytime I use Y axis in an operation, I zero it at the end of that operation so that next operation is not dependent on any variables from previous operation, helps avoid alarms when rerunning some operations after program reset.
CAM generated code will have some redundancy but if things are in order, it's just clutter that doesn't cause problems.
Example program for center line :
N5(1/4-20 tap)
T505
G97 S500 M3
G0 G54 G18 G99 X0 Z.5
Z.25 M8
G84 Z-.5 F.05
GO Z.5 M9
G53 X-4. Z-10.
M1
