Revit hatch size limitations

[johnrmcwatersiii]

Does anyone know how Revit determines whether a hatch pattern is too dense or too large, specifically with model hatches?

[vitorbortoncello]

Revit determines whether a hatch pattern is too dense or too large based on a combination of factors including the scale of the drawing view, the size of the elements being represented, and performance considerations. The exact algorithms used by Revit to make these determinations are proprietary to Autodesk

[boris_zivkovic]

Have you tried using pyRevit addin and his tool "Make hatch"?
You can use it to create any shape, maybe even something denser than Revit allows.

Here's how to use it

https://revitpure.com/blog/how-to-quickly-create-a-pattern-in-revit-using-pyrevit