by cncdrive » Tue Jun 27, 2017 10:01 pm
Hi Derek,
I verified the G86 and it works now how we wanted it to work. From what I read what I understand is that the G86 only switches the spindle off at the bottom of the hole and switches it back on when it retracted and reached the retract point which is the end of the G86 cycle. The G86 does not switch the spindle on at the beginning, you have to take care of switching the spindle on if you want with a M3 or M4 before the G86.
Then the G86 cycle checks if the spindle is on with M3 or M4 and then it switches the spindle off at the bottom of the drill and it remembers if the spindle was originally running with M3 or M4 and it switches the spindle back on the same direction that it was originally running M3 or M4 when the tool retracted and the G86 cycle finished.
So, I see no mention in any documentation that the G86 should switch the spindle on on the beginning, all documents what I found so far only describes that the spindle has to be stopped at the bottom of the drill and has to be switched back on at the end of the G86 cycle.
Please let me know if there is any documents you know which describes elseway.