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I have created a program that finishes with a 4-axis rotary tool path. I am using a Haas VF2 with the Generic 4-axis haas post from MasterCam. It's about 80K lines of code that get output using G93 Inverse time feed. Feed is non-modal when using G93 so there needs to be an F-value on every single line while G93 is active. About 1 out of every 20 lines does not have an F value and I can't figure out why.. any thoughts as to how I can fix this? Thanks, Al
Hi guys, Here's what we need. a 6-32 tapped hole thru cast 1/4" thick. Thread minor has to be .109 to .112. Hole is made with .125 carbide drill. The roll tap give a nice minor dia, but were eating thru the taps like no tomorrow. The operator has been going thru about 8 taps a shift. Originally the program had the tap rpm set to 1000 with a feed of 37.5. I thought that was way too fast. the first couple flutes on the tap would get burned up in no time. So i slowed the S&F down. But I dont think I slowed it down enough. Currently its set at S750 F23.4375. I was reading thru some of these forums and many people said that the max rpm for small dia tapping was around 200-250 rpm. If I need to slow the tap down to prolong its life, then I guess thats what i have to do. Only thing that will affect is longer cycle times. What are your thoughts on this issue? Could I start with a smaller hole and use a plug tap? Is it the coolant? What variables am i missing? Thanks, Matt