So, I could puzzle something out but I don’t want to reinvent the wheel.
Is there a way to really, precisely locate stuff? For example, I don’t think rapid-positioning to the center puts the endmill right on the centerline of the vise channel or bed reference holes. I was thinking I could mill a rectangular block that would fit in the vise channel or flip jig, carve a small horizontal line in it at what I think is Y center, rotate the block 180 degrees and carve another horizontal line in it at what I think is Y center, and then measure the error offset between them, and then I’ll know that what I thought was Y center is off by 1/2 the offset.
Better yet, I could carve diagonal lines (one from upper left to lower right, then rotate block 180 degrees and carve the other from upper right to lower left), the shallower the slope the better, and then the offset distance in X will inform how wrong my guess at Y coordinate center was. e.g. if I carve lines of slope 1/10 and the place where they cross is off by .06 inches to the right, then I’ll know that my guess at the Y coordinate was .06/10/2 = .003" too high.
Similarly, I have a need to locate the left vise wall, or locate the position of the left wall of some softjaws that I made and I guess I could do a similar thing.
I was just wondering if there are established CNC/milling routines for doing things like this.