A little update with this... Seems like opening and closing the chuck was an option and I guess I dont have it, no way of ever getting that to work without proper parameters (special codes for the SQ parameter). Only working M codes I have on this machine is for coolant and tailstock. Thought maybe I could rig up tailstock to advance and hit a switch to open chuck so played with that, but it didnt want to advance the tailstock, do some other moves (bar pull) and then retract the tailstock. was giving me an alarm. So that was out.
Only other option was to use the M code for coolant pump. So I rigged up a relay to "press the foot pedal" every time coolant pump gets power. This is working fine. Turn on my coolant now and the chuck opens. But it wont open if spindle is already turning so as long as im careful to start my spindle first with an m code everything will work fine! Awesome! Will pull the relay out of socket when im done this bar pulling job just to be safe...
So this brings me to another problem. This darn T1 control will let me repeat the program, but it wants to do it continuously. I cant just run say 40 parts and then stop. So what am I supposed do I do when I get to the end of the bar? I will end up with a piece of rod still in bar puller and this will crash into chuck on next part?
Any suggestions here? What did you guys do to make this work on T1? How about cutting a groove and then using a fork to fit over groove to pull? Do it all with a little clearance and maybe the end of bar will hopefully just fall out? Is there a better way??