Skew correction ideas? about g2 HOT 4 CLOSED

I really like this idea. I've only idly thought of it while mechanically squaring a machine, generally dismissing it for fear that a mechanical skew would cause additional wear and other compound issues.

But I see that that's not necessary the case.

So there is already a matrix transform on every endpoint run into the system. A consistent skew across the coordinate system (vs a non-linear one) would be easily handled by that, and would only require a means to configure it for the skew.

The matrix is currently only configurable via the "tram" command, and it applies a rotation to place the last three probe points on Z0. A similar command and similar configuration could be used, and no additional work should be needed.

from g2.

This is fairly trivial, at least on surface. Once the correction parameter c is known, the software moves the machine a little in X direction when it does an Y move. To go to (X, Y), the machine actually goes to (X+c*Y, Y). The complication comes in the user interface, as this needs to be hidden from the user; there needs to be two sets of coordinates: Where the machine actually is, and what is shown to the user.

from g2.

Thanks for the consideration here. Sounds promising. I see the interface issue. At first glance, leaving it opaque in the user interface seems acceptable. I say this from the point of view that the mechanical misalignment creates the same problem (tool is not actually where it says it is) . The correction fixes that. But, I may have not thought this though enough.

from g2.

Closing for lack of activity. You can re-open if you wish.

from g2.