Melee, thank you for this code. I have been asking Brian, etc for a couple of years for a code such as this, and you go and do it just for the heck of it, I am impressed. Now, saying this, I have just now found your post and downloaded the files, and am going to rush out the door to go try them on my lathe, so I have as yet to have real time experience with it. I may have missed this in your documentation, but a question. Will either of these do reentrant profiles, such as the G73 does, it moves down in the X axis only so will allow you to rough out, say, a spool shape? Either way, even if not, I can live without, you have made my day, week, month, thanks again, I will report back with all I find out.
DaveA.