Flattening a grid from CNC probing

Rhino Rhino for Windows
1

I have a file from a friend which is a grid scanned from a kitchen door with a simple engraved flower. Unfortunately after 30 hours of scanning the program died and the outer edge of a circular object is not quite complete. I think I can delete it and replace it however a large part of this scan is a flat surface around the details. Is there a way to take all the Z values of points in a range say ± .010" and make them zero, essentially making it perfectly flat?FLOWER DESIGN PROBE, 2.stl (10.9 MB)

I used Rhino every day for about 6 years, but holy mackerel it has been almost 16 years since I stopped using it every day. Now it is mostly my goto repair tool for SolidWorks files from vendors.

2

If you can select the points in this “flat” area, then you can use the SetPt command.
Uncheck the X and Y so they do not change, and change the World Z to 0.

Any luck?

4

John,
I haven’t had a chance to try it. No one told the alligators that I need to get this done.

5

John,
I can’t see an effective way to get only the points to flatten. Is there a way to do something like this with a script or macro? Like if Z<.01 and Z>than -0.01 then Z = 0. I would think that would do exactly what I need but I am not much of a programmer any more.