https://forums.autodesk.com/t5/hsm-post-processor-forum/bar-puller-positioning/m-p/6084856#M27035 Greg,<BR /><BR />I appreciate the attention. Your process sounds remarkably like ours. I have a working program loop (and bar pull) that I currently manually add to every program I post. My program inside the loop is the entire part machining followed by bar pull.<BR /><BR />I started by wanting to add the bar puller to the post processor, which is more or less done. I then got ambitious and wanted to try adding a program loop that I could enable or disable. Mostly working... I can remove the loop with a simple click in the post properties dialogue.<BR /><BR />Here is my example code that I add manually for the loop:<BR /><PRE>N110 (Loop Begin)<BR />N112 M97 P120 L2 (Loops from P-L times)<BR /><BR />N114 (Run after all loops complete)<BR />N116 G28<BR />N118 M30<BR /><BR />N120 (Start of looped code)<BR />N122 G53 G0 X0.<BR /><BR />//some program code//<BR /><BR />N844 M99 (Loop return and count)</PRE><BR /><BR />and this is the similar code being generated from the post:<BR /><BR /><PRE>M97 P2030 L4<BR />G28<BR />M30<BR />G53 G0 Y0.<BR />G53 X0.<BR />G53 Z0.<BR />O2030<BR /><BR />//some program code//<BR /><BR />M99</PRE><BR /><BR />This code does not run, I get an invalid p code error. For the post processor I opted to use the O number for the program loop instead of N because I wanted to define a number I could go to consistently, the N numbers appear to be added in HSM edit after post. It almost looks like the O number is supposed to be a separate program file located on the Lathe.<BR /><BR />As far as the rest of your program routine... my coworker was just asking me about adding a process for adding new stock, very similar to what you are doing. He also made mention of macros. Wed, 22 Jul 2015 21:46:17 GMT mfeathers 2015-07-22T21:46:17Z