I have to tap some 1/2"-13 threads about 3/4" deep
using a SuperMax Max1 VMC with a Mitsubishi MELDAS
M3 controller. (Very similar to FUNAC).

Parameter is set to threads per inch, not pitch.

Is this code correct???

G84 Z-.75 E13 R.1

E=threads per inch.

Do you have to set RPM first?

Do you need to set a G28 or something else.

Having a lot of problems. Just want to be sure code is OK.

Just wanted to get this job done right before China steals
it from the USA & I am out of work. HANG ON FOLKS.

I should talk. My machine is an import.