CNC Apps Guy 1, on 26 March 2012 - 11:14 AM, said:
What I don't get in this whole discussion about tool offsets and whatnot, is why people
don't want refuse to take advantage of functions in the machine that will eliminate a whole host of possible issues that are not even CAM related. I mean hey, it's your machine, use it how you want, but you're really missing out.
Our Mori is set up so that H200 and D200 are always used and we do not have this issue in that machine.
I think that the point is more that you should NOT have to worry about the CAM system outputting faulty numbers. If the CAM system were working properly we would not be having this discussion in the first place. The fact that this particular issue has been around for so long and obviously very well known about by CNC is troubling.
We have a couple of older machines here that are not able to hold the same tolerance on a small diameter hole as on the larger. We use multiple diameter offsets to regulate the hole sizes. On those machines we cannot have a hard coded H or D value unless we want to have to hand edit the necessary programs. I should be able to have faith in my CAM system to output the proper H and D values should I not?
I have allot of respect for you James but this is something that is difficult for me to understand. Height and Diameter values are one area that I would hope that I would not have to fight with this system to output proper values. Regardless how how easy it is to manipulate in to our post.