I work with a robotics team and we got a new ShapeOKO XL last year. We had a problem during build season that the parts would be off by some small amount. I, of course, blamed the kids for not following the steps that I had shown them. But when I investigated I found that sometimes the Y axis would be off by exactly 1mm.
The test procedure was use the touch probe to find the corner. Then move the tool half width inward and see if the edge of the tool lined up with the edge of the material. I measured the offset a few times and it was always either right on or 1 mm off. I am having them move the tool low enough that the spiral flutes have to hit on on the side.
We are machining aluminum but it fails this test before cutting anything. I don’t think that 1 step is equal to 1 mm and because it is off before cutting anything I don’t think I have lost a step.
So I just always had them test it and adjust the home position by exactly 1mm when it seemed off.
The other mentor did not think we were getting good parts even after this and in general so I need to go back and make sure the machine is square.
I hoped it was something that would get addressed in a software update over the summer but there does not seem to be any newer software.
Any ideas if I am missing something obvious or what tests I should run?