Hi all,

Hoping to expand on this topic and discuss tools that cannot go through ATC. Specifically an MX60 horizontal 4axis mill with random ATC, where we have tools with a collar for through coolant. The manual mentions the TN= command to tell control that next tool is manual change. I have used the mcodes mentioned below to empty the spindle, and used the TN= okay, but none of the codes that relate to manual tool change do anything, the machine accepts them but just hangs in run mode. Have tried M70/M71 and M177, also some others that looked vaguely related, no joy.

Has anyone used this function successfully and can you shed some light on the exact procedure and how the machine should behave?

DP