Filtering a cylinder

[[Cl...]]

I'm have a cylinder Datum Ø .084" x 0.5". My strategy uses a helix path. Normally for a cylinder of this size I would use 2 or 3 circle

paths and apply a Gauss filter at 15upr. But now that I'm scanning a helix rather than circles should I change the filter method to spline?

Edited December 18, 2025

[[Da...]]

This is why i never use helix, 🤣

[[Ri...]]

Google search:

"When scanning a cylinder with a helix, using a Gauss filter at 15upr is a common strategy. 

However, if the scanning path is helical rather than circular, it is recommended to change the filter method to spline. The spline filter 

is advantageous for its end-preserving properties, efficient calculation, and good form-following capabilities. It is particularly useful in surface metrology for isolating form, waviness, and surface roughness from finer content such as instrument noise."

Edited December 23, 2025