spindle counts

Hi m66 counts spindle turns?

No

M66 waits for a single input
www.linuxcnc.org/docs/devel/html/gcode/m...l#_m66_wait_on_input

encoder.N.counts will count spindle turns if you have an Z index attached
www.linuxcnc.org/docs/devel/html/man/man9/encoder.9.html

hi, ArcEye
How i do counters spindle turns and disable it?
ex: spindle 300rpm and do 300 turns and disable?

You need to explain what you are trying to do overall.

Past experience of answering narrowly framed questions like this with no other information, is that the answers you get will not be the right ones, or not the best.

If you say what your problem is, rather than ask how to achieve what you have predetermined as the solution, you may well find someone has done it already.

regards