[extanker59]

there are a lot of people that still use G91, mostly when hand writing short programs, and what they are used to using, the main risks are when it is not canceled before an absolute move, which can really make for a bad day

That's right. I programmed by hand for 12 years and would use it as a "canned cycle" all the time to reduce the code length. Using CAM now so I almost never see it unless I want to do something that I can't figure out how to get the CAM to do it.

And mactec54 is right about the risk. Cancel G91 and go back to G90 after you're done!

matt@RFR is right too about the complexity but I'm not a fan of going home after each groove. It would simplify everything though.

[Matt@RFR]

matt@RFR is right too about the complexity but I'm not a fan of going home after each groove. It would simplify everything though.

I don't know if it's a setting or a control generation deal or what, but my 2007 VF-2ss ignores redundant tool changes. It's really convenient. My new Brother does NOT ignore duplicate tool changes so I had to change my sub program structure, but it's still not a huge deal.