I am just going into 4th axis rotary surfacing got the tool path to work ok.My problem is this inverse feed on a haas v2-hrt160 very slow.So messing around using haas genric 4th I post out 20. ipm then 60 ipm on the same file the inverse numbers are bigger on the 60 ipm than the the 20 ipm, downloaded mpmaster post it does the same thing. From what i understand that is a time value so that is backwards. what am I missing ? Help! Thanks