surfaceZHigh parameter cannot be used in expression

[Joshua.mursic]

Hello, how do I use the surfaceXHigh, surfaceYHigh, and surfaceZHigh parameters in my expressions? The x and y parameters have values when I hover over them, but the expression is invalid?

[seth.madore]

That's a great question. In what context are you trying to leverage these expressions?

[Joshua.mursic]

I’ve noticed that the project operation is constrained by the bottom height, but not the top height. If you define multiple step downs and the total distance larger then the distance between the top and bottom, the toolpath will extend above the top limit anyway. I was going to use these parameters to calculate the number of step downs in between the upper limit and the lower limit for the toolpath to prevent this.

[seth.madore]

And use this parameter where, in the Multiple Depths field?

[Joshua.mursic]

Yes that’s correct